The packet forensics mode
packet mode follow stream SPKTMD_PKTNO SPKTMD_PCNTC SPKTMD_PCNTH SPKTMD_PCNTH_PREF SPKTMD_PCNTH_SEP
Contents
Introduction
This tutorial gives you an introduction to the packet mode of T2.
It was designed to enable efficient post-processing and as a means of drill down from the flows to the very packet.
It uses the same format as the flow files and therefore can be processed by tawk or any other tool of your choice.
Each plugin can contribute to the packet mode, same as with flows.
Flows and packets are linked by the unique flow index.
Getting started
Create folders for your data and results
If you have not created a separate data and results directory yet, please do it now. This will greatly facilitate your workflow:
mkdir ~/data ~/results
Reset tranalyzer2 and the plugins configuration
If you have followed the other tutorials, you may have modified some of the core and plugins configuration. To ensure your results match those in this tutorial, make sure to reset everything:
t2conf -a --reset
You can also clean all build files:
t2build -a -c
Empty the plugin folder
To ensure we are not left with some unneeded plugins or plugins which were built using different core configuration, it is safer to empty the plugins folder:
t2build -e -y
Are you sure you want to empty the plugin folder '/home/user/.tranalyzer/plugins' (y/N)? yes
Plugin folder emptied
Download the PCAP files
The PCAP files used in this tutorial can be downloaded here:
Please save them in your ~/data folder:
wget --no-check-certificate -P ~/data https://tranalyzer.com/download/data/{annoloc2,faf-exercise}.pcap
Build tranalyzer2 and the required plugins
For this tutorial, we will need to build the core (tranalyzer2) and the following plugins:
As you may have modified some of the automatically generated files, it is safer to use the -r and -f options.
...
BUILDING SUCCESSFUL
Now you are all set for your first packet mode experience.
Activation of packet mode
The packet mode is activated by adding the -s option to the t2 command line.
Now, each packet produces a separate line in the packet file.
================================================================================ Tranalyzer 0.9.1 (Anteater), Cobra. PID: 15684, SID: 666 ================================================================================ [INF] Creating flows for L2, IPv4, IPv6 Active plugins: 01: basicFlow, 0.9.1 02: basicStats, 0.9.1 03: tcpStates, 0.9.1 04: ftpDecode, 0.9.1 05: txtSink, 0.9.1 [INF] IPv4 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 481577 (481.58 K) [INF] IPv6 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 41488 (41.49 K) Processing file: /home/user/data/faf-exercise.pcap Link layer type: Ethernet [EN10MB/1] Snapshot length: 65535 (65.53 K) Dump start: 1258544215.037210000 sec (Wed 18 Nov 2009 11:36:55 GMT) Dump stop : 1258594491.683288000 sec (Thu 19 Nov 2009 01:34:51 GMT) Total dump duration: 50276.646078000 sec (13h 57m 56s) Finished processing. Elapsed time: 0.049407769 sec Finished unloading flow memory. Time: 0.049423329 sec Percentage completed: 100.00% Number of processed packets: 5902 (5.90 K) Number of processed bytes: 4993414 (4.99 M) Number of raw bytes: 4993414 (4.99 M) Number of pcap bytes: 5087870 (5.09 M) Number of IPv4 packets: 5902 (5.90 K) [100.00%] Number of A packets: 1986 (1.99 K) [33.65%] Number of B packets: 3916 (3.92 K) [66.35%] Number of A bytes: 209315 (209.31 K) [4.19%] Number of B bytes: 4784099 (4.78 M) [95.81%] <A packet load>: 105.40 <B packet load>: 1221.68 (1.22 K) -------------------------------------------------------------------------------- basicStats: Flow max(pktload): 1376 (1.38 K) basicStats: Flow max(b/s), pkts: 8273466 (8.27 Mb/s), 73 basicStats: Biggest L3 flow talker: 143.166.11.10 (US): 3101 (3.10 K) [52.54%] packets basicStats: Biggest L3 flow talker: 143.166.11.10 (US): 4268858 (4.27 M) [85.49%] bytes tcpStates: Aggregated tcpStatesAFlags=0x4a ftpDecode: Aggregated ftpStat=0x0b ftpDecode: Number of FTP control packets: 22 [0.37%] ftpDecode: Number of FTP-DATA packets: 4612 (4.61 K) [78.14%] -------------------------------------------------------------------------------- Headers count: min: 3, max: 3, average: 3.00 Number of TCP packets: 5902 (5.90 K) [100.00%] Number of TCP bytes: 4993414 (4.99 M) [100.00%] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Number of processed flows: 72 Number of processed IPv4 flows: 72 [100.00%] Number of processed A flows: 36 [50.00%] Number of processed B flows: 36 [50.00%] Number of request flows: 36 [50.00%] Number of reply flows: 36 [50.00%] Total A/B flow asymmetry: 0.00 Total req/rply flow asymmetry: 0.00 Number of processed packets/flows: 81.97 Number of processed A packets/flows: 55.17 Number of processed B packets/flows: 108.78 Number of processed total packets/s: 0.12 Number of processed A+B packets/s: 0.12 Number of processed A packets/s: 0.04 Number of processed B packets/s: 0.08 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <Number of processed flows/s>: 0.00 <Bandwidth>: 792 b/s <Raw bandwidth>: 795 b/s Max number of flows in memory: 18 [0.01%] Memory usage: 0.02 GB [0.03%] Aggregated flowStat=0x0400000000004000 [INF] IPv4 flows
Nice, we observe total flow symmetry (flow asymmetry = 0), so no lonely flows, all IPv4, and we have FTP packets, which means readable content. Look at the biggest talker, maybe it’s the FTP data flow? Let’s find out.
ls ~/results
faf-exercise_flows.txt faf-exercise_headers.txt faf-exercise_packets.txt
An additional packets file has been created. Let’s have a look at it!
The pktNo (packet number) and time enable a synchronization between T2 packet mode and Wireshark. Hence,
making the cooperation between both tools easier.
Note the pktIAT, pktTrip and flowDuration columns:
they reference times separated by flow and direction.
The first denotes the packet Inter-Arrival Time (IAT),
the next the trip time between A and B packet of a specific flow
and the latter the elapsed time since flow A or B started.
These times intervals are very useful for signal processing, traffic mining research and in detail troubleshooting.
The first bit in flowStat marks the direction of the flow, so you can follow the timing information between different
packets and flows
head -28 ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto pktLen udpLen snapL4Len snapL7Len l7Len tcpStatesAFlags ftpStat l7Content
1 1 0x0400000000004000 1258544215.037210000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 66 0 28 0 0 0x00 0x00
2 1 0x0400000000004001 1258544215.202900000 0.000000000 0.165690000 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 62 0 28 0 0 0x00 0x00
3 1 0x0400000000004000 1258544215.203358000 0.166148000 0.000458000 0.166148000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
4 1 0x0400000000004000 1258544215.203850000 0.000492000 0.000950000 0.166640000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 425 0 387 367 367 0x00 0x00 GET /softw/90/update/avg9infoavi.ctf HTTP/1.1\r\nUser-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA=\r\nHost: backup.avg.cz\r\nAccept: */*\r\nAccept-Encoding: identity,deflate,gzip\r\nIf-Modified-Since: Tue, 17 Nov 2009 20:41:10 GMT\r\nPragma: no-cache\r\nCache-Control: no-cache\r\nx-avg-id:78-175947826\r\n\r\n
5 1 0x0400000000004001 1258544215.370055000 0.167155000 0.166205008 0.167155000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 1434 0 1400 1380 1380 0x00 0x00 HTTP/1.1 200 OK\r\nDate: Wed, 18 Nov 2009 11:39:48 GMT\r\nServer: Apache\r\nLast-Modified: Wed, 18 Nov 2009 09:04:15 GMT\r\nETag: "15c007-cea-478a186e401c0"\r\nAccept-Ranges: bytes\r\nContent-Length: 3306\r\nConnection: close\r\nContent-Type: text/plain\r\n\r\nAVG CTF Index File;ver(10)\r\nbin(u7avi1777ff.bin)grp(avi:1777)tm(0911180855)pri(2)len(6637487)\r\nbin(u7avi1777u1323ff.bin)grp(avi:1777)dep(avi:1323)tm(0911180855)pri(2)len(590030)\r\nbin(u7avi1777u1705ff.bin)grp(avi:1777)dep(avi:1705)tm(0911180855)pri(2)len(95323)\r\nbin(u7iavi2511ff.bin)grp(iavi:2511)tm(0911180855)pri(2)len(45641416)\r\nbin(u7iavi2511u2251fo.bin)grp(iavi:2511)dep(iavi:2251)tm(0911180855)pri(2)len(6175342)\r\nbin(u7iavi2511u2353fn.bin)grp(iavi:2511)dep(iavi:2353)tm(0911180855)pri(2)len(4506824)\r\nbin(u7iavi2511u2404fm.bin)grp(iavi:2511)dep(iavi:2404)tm(0911180855)pri(2)len(3342546)\r\nbin(u7iavi2511u2431fl.bin)grp(iavi:2511)dep(iavi:2431)tm(0911180855)pri(2)len(2609643)\r\nbin(u7iavi2511u2458fk.bin)grp(iavi:2511)dep(iavi:2458)tm(0911180855)pri(2)len(1380674)\r\nbin(u7iavi2511u2480fj.bin)grp(iavi:2511)dep(iavi:2480)tm(0911180855)pri(2)len(681743)\r\nbin(u7iavi2511u2490fi.bin)grp(iavi:2511)dep(iavi:2490)tm(0911180855)pri(2)len(555496)\r\nbin(u7iavi2511u2500fh.bin)grp(iavi:2511)dep(iavi:2500)tm(0911180855)pri(2)len(332906)\r\nbin(u7iavi2511u2505fh.bin)grp(iavi:2511)dep(iavi:2505)tm(0911180855)pri(2)len(204942)\r\nbin(u7iavi2511u2508
6 1 0x0400000000004001 1258544215.370067000 0.000012000 0.166217008 0.167167000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 375 0 341 321 321 0x00 0x00 fg.bin)grp(iavi:2511)dep(iavi:2508)tm(0911180855)pri(2)len(72274)\r\nbin(u7iavi2511u2510ff.bin)grp(iavi:2511)dep(iavi:2510)tm(0911180855)pri(2)len(30540)\r\nbin(u9ichjw4qt.bin)grp(ichjw:4)pri(2)tm(0907131859)len(113488)\r\nbin(u9ichjw4u2ia.bin)grp(ichjw:4)dep(ichjw:2)pri(2)tm(0907131859)len(94470)\r\nbin(u9ichjw4u3gq.bin)grp(ic
7 1 0x0400000000004000 1258544215.370501000 0.166651000 0.000433984 0.333291000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
8 1 0x0400000000004001 1258544215.370560000 0.000493000 0.000059008 0.167660000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 1434 0 1400 1380 1380 0x00 0x00 hjw:4)dep(ichjw:3)pri(2)tm(0907131859)len(13313)\r\nbin(u9idat249b243tc.bin)grp(idat:249)dif(idat:243)pri(2)tm(0911051401)len(621430)\r\nbin(u9idat249b245bp.bin)grp(idat:249)dif(idat:245)pri(2)tm(0911051401)len(197648)\r\nbin(u9idat249b246mj.bin)grp(idat:249)dif(idat:246)pri(2)tm(0911051400)len(159289)\r\nbin(u9idat249b247uh.bin)grp(idat:249)dif(idat:247)pri(2)tm(0911051400)len(95680)\r\nbin(u9idat249le.bin)grp(idat:249)pri(2)tm(0911051400)len(1927074)\r\nbin(u9ifw42jx.bin)grp(ifw:42)pri(2)tm(0911131400)len(541853)\r\nbin(u9ifw42u38we.bin)grp(ifw:42)dep(ifw:38)pri(2)tm(0911131400)len(123575)\r\nbin(u9ifw42u39ke.bin)grp(ifw:42)dep(ifw:39)pri(2)tm(0911131400)len(92745)\r\nbin(u9ifw42u40dc.bin)grp(ifw:42)dep(ifw:40)pri(2)tm(0911131400)len(67292)\r\nbin(u9ifw42u41tz.bin)grp(ifw:42)dep(ifw:41)pri(2)tm(0911131400)len(18393)\r\nbin(x8all234yc.bin)grp(xplph:0012;xplsb:0099;xplsb2:0118;xplsc:0149)tm(0911180700)pri(2)len(1146352)\r\nbin(x8xplph_12gj.bin)grp(xplph:12)tm(0910280700)pri(2)len(4551)\r\nbin(x8xplsb2_118c8.bin)grp(xplsb2:118)tm(0911180700)pri(2)len(4989)\r\nbin(x8xplsb_9946.bin)grp(xplsb:99)tm(0911160700)pri(2)len(985460)\r\nbin(x8xplsb_99d9546.bin)grp(xplsb:99)dif(xplsb:95)tm(0911160700)pri(2)len(32267)\r\nbin(x8xplsb_99d9646.bin)grp(xplsb:99)dif(xplsb:96)tm(0911160700)pri(2)len(3505)\r\nbin(x8xplsb_99d9746.bin)grp(xplsb:99)dif(xplsb:97)tm(0911160700)pri(2)len(644)\r\nbin(x8xplsb_99d9846.bin
9 1 0x0400000000004001 1258544215.370571000 0.000011000 0.000070016 0.167671000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 520 0 486 466 466 0x00 0x00 )grp(xplsb:99)dif(xplsb:98)tm(0911160700)pri(2)len(581)\r\nbin(x8xplsc_149c8.bin)grp(xplsc:149)tm(0911180700)pri(2)len(151922)\r\nbin(x8xplsc_149d145c8.bin)grp(xplsc:149)dif(xplsc:145)tm(0911180700)pri(2)len(2561)\r\nbin(x8xplsc_149d146c8.bin)grp(xplsc:149)dif(xplsc:146)tm(0911180700)pri(2)len(1921)\r\nbin(x8xplsc_149d147c8.bin)grp(xplsc:149)dif(xplsc:147)tm(0911180700)pri(2)len(1767)\r\nbin(x8xplsc_149d148c8.bin)grp(xplsc:149)dif(xplsc:148)tm(0911180700)pri(2)len(1411)\r\n
10 1 0x0400000000004001 1258544215.370580000 0.000009000 0.000079008 0.167680000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 54 0 20 0 0 0x00 0x00
11 1 0x0400000000004000 1258544215.370997000 0.000496000 0.000416992 0.333787000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
12 1 0x0400000000004000 1258544215.372742000 0.001745000 0.002162016 0.335532000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1258 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
13 1 0x0400000000004001 1258544215.537951000 0.167371000 0.165208960 0.335051000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1258 6 54 0 20 0 0 0x00 0x00
14 2 0x0400000000004000 1258544216.385370000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1259 77.67.44.206 gb Akamai Technologies 80 6 66 0 28 0 0 0x00 0x00
15 2 0x0400000000004001 1258544216.551313000 0.000000000 0.165943040 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1259 6 62 0 28 0 0 0x00 0x00
16 2 0x0400000000004000 1258544216.551760000 0.166390000 0.000446976 0.166390000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1259 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
17 2 0x0400000000004000 1258544216.554751000 0.002991000 0.003437952 0.169381000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1259 77.67.44.206 gb Akamai Technologies 80 6 380 0 342 322 322 0x00 0x00 GET /softw/90/update/u7avi1777u1705ff.bin HTTP/1.1\r\nUser-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA=\r\nHost: backup.avg.cz\r\nAccept: */*\r\nAccept-Encoding: identity,deflate,gzip\r\nPragma: no-cache\r\nCache-Control: no-cache\r\nx-avg-id:78-175947826\r\n\r\n
18 2 0x0400000000004001 1258544216.720958000 0.169645000 0.166207040 0.169645000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1259 6 518 0 484 464 464 0x00 0x00 HTTP/1.1 302 Found\r\nDate: Wed, 18 Nov 2009 11:39:49 GMT\r\nServer: Apache\r\nLocation: http://aa.avg.com/softw/90/update/u7avi1777u1705ff.bin\r\nContent-Length: 238\r\nConnection: close\r\nContent-Type: text/html; charset=iso-8859-1\r\n\r\n<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">\n<html><head>\n<title>302 Found</title>\n</head><body>\n<h1>Found</h1>\n<p>The document has moved <a href="http://aa.avg.com/softw/90/update/u7avi1777u1705ff.bin">here</a>.</p>\n</body></html>\n
19 2 0x0400000000004001 1258544216.720970000 0.000012000 0.166219008 0.169657000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1259 6 54 0 20 0 0 0x00 0x00
20 2 0x0400000000004000 1258544216.721401000 0.166650000 0.000431040 0.336031000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1259 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
21 2 0x0400000000004000 1258544216.723144000 0.001743000 0.002174016 0.337774000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1259 77.67.44.206 gb Akamai Technologies 80 6 64 0 20 0 0 0x00 0x00
22 2 0x0400000000004001 1258544216.888595000 0.167625000 0.165451008 0.337282000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 77.67.44.206 gb Akamai Technologies 80 192.168.1.104 07 Private network 1259 6 54 0 20 0 0 0x00 0x00
23 3 0x0400000000004000 1258544216.908284000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 66 0 28 0 0 0x00 0x00
24 3 0x0400000000004001 1258544216.915576000 0.000000000 0.007291968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 62 0 28 0 0 0x00 0x00
25 3 0x0400000000004000 1258544216.916026000 0.007742000 0.000449984 0.007742000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 64 0 20 0 0 0x00 0x00
26 3 0x0400000000004000 1258544216.929764000 0.013738000 0.014187968 0.021480000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 377 0 339 319 319 0x00 0x00 GET /softw/90/update/u7avi1777u1705ff.bin HTTP/1.1\r\nUser-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA=\r\nHost: aa.avg.com\r\nAccept: */*\r\nAccept-Encoding: identity,deflate,gzip\r\nPragma: no-cache\r\nCache-Control: no-cache\r\nx-avg-id:78-175947826\r\n\r\n
27 3 0x0400000000004001 1258544216.936827000 0.021251000 0.007063040 0.021251000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 54 0 20 0 0 0x00 0x00Packet flow tracking
The packet mode provides all features that the flow files contains.
Both entries are linked by the flowInd, so you can track each packet back to the flow and vice versa.
Hence, extraction of features such as l7Content on a flow basis is a one liner with tawk.
Let’s say the flow at index 3 is especially interesting to you:
tawk 'flow(3)' ~/results/faf-exercise_packets.txt | head | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto pktLen udpLen snapL4Len snapL7Len l7Len tcpStatesAFlags ftpStat l7Content
23 3 0x0400000000004000 1258544216.908284000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 66 0 28 0 0 0x00 0x00
24 3 0x0400000000004001 1258544216.915576000 0.000000000 0.007291968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 62 0 28 0 0 0x00 0x00
25 3 0x0400000000004000 1258544216.916026000 0.007742000 0.000449984 0.007742000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 64 0 20 0 0 0x00 0x00
26 3 0x0400000000004000 1258544216.929764000 0.013738000 0.014187968 0.021480000 3 eth:ipv4:tcp 00:0b:db:4f:6b:10 00:19:e3:e7:5d:23 0x0800 192.168.1.104 07 Private network 1260 198.189.255.75 us California State University 80 6 377 0 339 319 319 0x00 0x00 GET /softw/90/update/u7avi1777u1705ff.bin HTTP/1.1\r\nUser-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA=\r\nHost: aa.avg.com\r\nAccept: */*\r\nAccept-Encoding: identity,deflate,gzip\r\nPragma: no-cache\r\nCache-Control: no-cache\r\nx-avg-id:78-175947826\r\n\r\n
27 3 0x0400000000004001 1258544216.936827000 0.021251000 0.007063040 0.021251000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 54 0 20 0 0 0x00 0x00
28 3 0x0400000000004001 1258544216.937559000 0.000732000 0.007795008 0.021983000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 1434 0 1400 1380 1380 0x00 0x00 HTTP/1.1 200 OK\r\nServer: Apache\r\nETag: "0210a9516dd34abc481683f877bd8680:1258533754"\r\nLast-Modified: Wed, 18 Nov 2009 07:55:25 GMT\r\nAccept-Ranges: bytes\r\nContent-Length: 95323\r\nContent-Type: application/octet-stream\r\nDate: Wed, 18 Nov 2009 11:39:50 GMT\r\nConnection: keep-alive\r\n\r\nMZ AVG7 UpdateBin grp(avi:1777)dep(avi:1705)tm(0911180855)pri(2)..7TW;........"....m.b...YbU..&..6.P.B.....jx.\n.n..%....g...8......c....X.c.sO..M............Y.7|..\e...q........w/mb.D#...:.`.H|..(.:\e..wjA/...u....C{.]\e.7.y..8..v....n.5..L.k..U>&te...-.....a..\f`..n. h.....0.......9Ig.s..7^.)..,........ .R..+...f ...xg..xq....;1...F.|....)..*..~.%.I\bo.*......)...P...w.V.q....41....h...w%o..,Ha;.~}..#!.p....{..w\b=A.0...8..IB.;.*...]..w.@..%F[L9(.. ..`..Iq...'......4.&.......\e..Gz0S}`...s.....s...6\).4(..x.J..[do...w./..m.\f[.X.D...z\.. ..F...\nA[....O_...."..te..|b..".......\t..e-..i.q....<&h....SKz.gR.+.<1....n........|..\b-...B..?..".\f./.g.I@..m[s...\eiu3$.t\tL...`...D$..eff..7(.L.\V_..HR!.X.......\f.A#....=...K.[.>..CO.2J...R...k.k.p..ME...\}.v..l_.D\t...D...;c......0~3:A.....\bi\e.7X&..].@.......k?..Qn........,c.`..K.\t.B.M........~\.....>..|._. ...W.YP.....N...u.....s@:..Z.z..n\e."B..Q.M.9..D[.c.z.l...z.G....l..6.yPJ.8.........Q.eE.....oPK.'.s. ..(....+..3........."q...d.....v....@......q\e.+. _YK.`.Zn.c..a..E.q...cI......c..\f.\r0..\n.... ]p..Z=.{./Iz..'..<.d...9...]:...P.}v<...9.h...T9cf../<..U.L
29 3 0x0400000000004001 1258544216.937570000 0.000011000 0.007806016 0.021994000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 1434 0 1400 1380 1380 0x00 0x00 .G...*.......SlF...>.(..\......].2`...R?fQY.E\....B.\.]..)Fd>\n.'5...&..^M<..L.4..^U....!\b.......VL.n.%..<J.G.:...bz/L.^.r.........n%Wr'.k\f.g...D...<..f.P............mj...`a.Mc.....B..c.DGz.].e..H.5<f.K...r$....K.-.x..&.....?m....'-.2..0.~.....d/e........4..lx..F\tb.....>...7 Z4..]@,&N.\f.....?I......r.3..a........j.G...\ni.g.\f...d\n..I..k........'..$....6j)svy..u.......T...TH.I..;{Q......\rj.....E..Rc..%.\n...3B.o...)...h].#.<.,1&.......a\f.](..LVKi...z\b..>...Bc.\eY...N.n6l..3..}{~.G.}p .........pPn..c..eQ..m;........O/...+....Z,..$..<.W...\....0RKbHeh'..2.]....E*....a.\ej.7h.9..%Q..R.Z..wP/.JF...3p...[.y..$.h.]..*.%.D.+...#.+.u...>.....I...|.&....-.......%:\t...y....C=.........F....@]X..5&.....W...~Q.%w..d.\b...aZ.....DS..33......Cp._.\t.<......w..!uvt....c....\[Z.Bh'..N...\f..G...Gu..*...\tk..0y....In..:\b*`8......E.. .(R...~..`Z.E-[....;.B..WIR.0....\b^8~....y.6...k..D.V......L7| ..X ...Y...s_......o%Qf2Q0.q.. ...;f5+08..7%.Z......\b.D?.F.]K...@h1D.ah..}Y....#ZF......2.....u]..yc0...<l.E.GO....\e.../g...f.../..+..>..Xw...\f.X....i.q2..W@P.`\7.f.e.X:.-O......nB{o......pu..s.l."Q.....S7D.4k@.Ud..%uxf.."...r.[%...ZZ.....).bS..E.......h.W..0.v.!`.........ix.gh/7Yd.#HO....bo...;....|...F.....e...).x...)....m...A...6!.r..q..Y.W...[.9..H,..4PL;.L...`g.q.-.+.gIk..vy....2...-.....n.O..3.W..p.%.*.wCOm.\t.\f.q.,..[.(V....|....N...K..k.. ..W..jZR...L9...q.z.t.+...<c?.....X....]<...u..'Y.
30 3 0x0400000000004001 1258544216.937579000 0.000009000 0.007815040 0.022003000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 1434 0 1400 1380 1380 0x00 0x00 .......R1.cR#..eWk.B....HD...q....p.c..P.t\e....A........\rg..[.x.....>... .jf\n.0..@..[....Z~.a.b..[..5.=\b.7.....\f..^`.8.=.\t..6..\n..eg......p.\n..b....J.(R...O.....G.K3.|.]..]A..\n....z[....K.....\n q\+....S..ox.\t.Hg....i...Q.9s.b4.Y.."o...o..!...p.@.....k.Z.;..I.y.aI.C.......D.G..q..H.h.....L.\....UH.<58..I\b..a.....{.aTy.._...h.8.bQ%.?.....zW\eC..f\C....!x.....O....^{P~'....z9.....8.a...!..{.....Mz....%8...Y/".|...*q=..D.H..@..ZsC...".B...1.MA2..z@......2...S.<]r.....epQ8..Gz.h....V.Qh.....*MYoV..w@...):9.\f.uV.....g'z.,KE:.G$\n.....;../..^(....*.......`.o.....`[...TzF7V..2..o...qU.nE+=n....\na.F..o...\t..h.. .{....}*g....F..,J.9.......ijB...B&..i...A.+.....f ..:ht.;-=.E.....j..2.....h%...\r'...9...\ru._...f...........|I..L..T..../....n.`F.c|.."[g....-...."...v..1y@.....S.]Y....D."..d.-....O:W......~...Y5{.\e..:..."...C..R...%\fnq...~......p....^ZF}n..yB.GFP...-..3..C....~...%r.?`.wT8l.'/M_.6k../.J.1.u._.."W}Z.f.e.".#[.Xh.. .]E....6..X...{..O.0\t.E\......,.._-6r.N.......Zhc......Z.....a...U.....z.*..cW..N8.8........B..h(..51Az..7........^..{.D..........g~EQtM.._....e.;z.?.....~\f..\I.24.>7lQ\fC.X.(D.^x".YJw..0"A....Ix..wR..2..nwt..Qu..?..g.%..\e3.,\r(......A.[Gb.\..4..u38......C\n.e..Y.x.S.)c....z.\f.....e.3..UkY...........U.C]v..*Q..i..\n..-..Q..]\t.<;\f...&.[..0y....0.C....].;....:\f.+.....B..K.\.=...W......6. ...z.....hXd@.h7.7%.. ..E.d[..'..k.s...........jo.O..uaEL......J&.8R..
31 3 0x0400000000004001 1258544216.937598000 0.000019000 0.007834048 0.022022000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:0b:db:4f:6b:10 0x0800 198.189.255.75 us California State University 80 192.168.1.104 07 Private network 1260 6 1434 0 1400 1380 1380 0x00 0x00 ........%u.He..9......[.x..X...o,.^y.\r*....v...B.)......dN...R#..\....M......C.,.>f.Q[.....7.:.8...-z....^.\e.?..`!..d^..a.!.G.'.6...\n>.o.o...SF..5w.#....h. .J..|..@...k.0...]..A~S#..).. 1..;..F...0.Mf..\b.D.rx..6.+~.%.F...!.m.M...........!.n...~c.........f.....g..6...O.r....-...sC.b.......4..@....R`. ....H..TL..d..P..\n....?)p.(...,..T...C..p..X.m]2....oV`6{w...g.NU.....a.o.......%H...0..h.R.p..g.....fh....[V.L...?@.'-.......?wI....Z)...h.lo!Y.@..e....ab.@l.[Ci\b...Z........h.1...J........m..&.j......b..^....s.K......$.+..\n1.F.....?%..N.......+..Ws.na....L.....U. )..~..(;.c...w\b.v.Q.k\e..3.w3...h.Fu.....i...X..3......u.V....s-."..{.....f..^F......G..l!.\b./.5...C\..Y.......,.9....7.gI....p........].}w.2.......6..m..\e..K.\f...~..q.......TY\t1a.v...".C#3..m...6 ..H.Lb..X..5.b(?..q..........s.\r.IZ.o.\n)\n..3..t/e.....{..../'....Z.B....=.................$6....B.7.p.....0o\t@..m....1.5...t....Z...=.'j!..?:.eXz"q..-.O..1.'c.O-..j.rEA.I...*.bB..]..6Q..\ro..F../.JA.-....$...u...XmS........);K.$.}.."a.}TE.H......n..\b^..]....%.....I~....'.. ..N......!nu..eG....K...../.....Ga...6...V.d.a............*>)...f(^.s<..WR..R.....U......O./..e2....b.b.:.k....c+\rD.......e.V......OkzW..[.....?E..fw".\ta.....!].jQ.t.l.P..W...f.....\t.%..................u..\e.>...l..j../.......cY:@rxp.*-....;.._t..N..-.."......Z&p=ih.2.}\bxV.i.ZGI....V..."...v....=...'K_$0.`a...q;EQS..hn..<'x...n.Ef......,....i.For researchers, important parameters such as pktLen or l7Len are supplied and can be selected using tawk, and then being piped into further post-processing.
Let’s say that you are only interested in flows that have the FTP flag set:
tawk 'bitsanyset($ftpStat, 0x01)' ~/results/faf-exercise_flows.txt | tcol
%dir flowInd flowStat timeFirst timeLast duration numHdrDesc numHdrs hdrDesc srcMac dstMac ethType vlanID srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto numPktsSnt numPktsRcvd numBytesSnt numBytesRcvd minPktSz maxPktSz avePktSize stdPktSize minIAT maxIAT aveIAT stdIAT pktps bytps pktAsm bytAsm tcpStatesAFlags ftpStat ftpCDFindex ftpCC ftpRC ftpNumUser ftpUser ftpNumPass ftpPass ftpNumCP ftpCP
A 35 0x0400000000004000 1258594162.928342000 1258594185.618346000 22.690004000 1 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 "Private network" 49329 143.166.11.10 us "Dell Technologies" 21 6 11 11 92 1231 0 24 8.363636 10.15629 0 21.78007 2.062728 6.53995 0.484795 4.054649 0 -0.8609222 0x02 0x09 36 USER;PASS;TYPE;PASV;SIZE;RETR 1 "anonymous" 1 "IEUser@" 2 "I";"/video/R79733.EXE"
B 35 0x0400000000004001 1258594163.008594000 1258594491.683288000 328.674694000 1 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us "Dell Technologies" 21 192.168.1.105 07 "Private network" 49329 6 11 11 1231 92 0 950 111.9091 303.9246 0 306.2558 29.87952 91.89713 0.03346774 3.745345 0 0.8609222 0x42 0x09 36 220;331;230;200;227;213;125;226 0 0 1 "125 Data connection already open; Transfer startin"The only real FTP flow is the one with flowInd=35, so let’s select it in the packet file:
tawk 'flow(35)' ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto pktLen udpLen snapL4Len snapL7Len l7Len tcpStatesAFlags ftpStat l7Content
1266 35 0x0400000000004000 1258594162.928342000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 66 0 28 0 0 0x00 0x01
1267 35 0x0400000000004001 1258594163.008594000 0.000000000 0.080251968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 62 0 28 0 0 0x00 0x01
1268 35 0x0400000000004000 1258594163.009292000 0.080950000 0.000698000 0.080950000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 64 0 20 0 0 0x00 0x01
1269 35 0x0400000000004001 1258594163.087792000 0.079198000 0.078500000 0.079198000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 81 0 47 27 27 0x00 0x01 220 Microsoft FTP Service\r\n
1270 35 0x0400000000004000 1258594163.088491000 0.079199000 0.000699000 0.160149000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 74 0 36 16 16 0x00 0x01 USER anonymous\r\n
1271 35 0x0400000000004001 1258594163.166256000 0.078464000 0.077765000 0.157662000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 126 0 92 72 72 0x00 0x01 331 Anonymous access allowed, send identity (e-mail name) as password.\r\n
1272 35 0x0400000000004000 1258594163.168693000 0.080202000 0.002436992 0.240351000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 72 0 34 14 14 0x00 0x01 PASS IEUser@\r\n
1273 35 0x0400000000004001 1258594163.247178000 0.080922000 0.078485008 0.238584000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 1004 0 970 950 950 0x00 0x01 230-Welcome to the Dell FTP site. A service of Dell Inc., Round Rock, Texas.\r\n For information about DELL, call +1 800 999 3355 All transfers are logged with\r\n your host name and email address. If you don't like this policy please disconnect now.\r\n Please be advised that use constitutes consent to monitoring (Elec Comm Priv Act,\r\n 18 USC 2701-2711). Please see the file readme.txt for disclaimers pertaining to this\r\n service. If your FTP client crashes or hangs shortly after login, try using a dash\r\n (-) as the first character of your password. This will turn off the informational\r\n messages which may be confusing your ftp client.\r\n ********IN CASE OF PROBLEMS*************************\r\n ** File Content: send EMAIL to dellbbs@dell.com **\r\n ** FTP Server: send EMAIL to hostmaster@dell.com **\r\n ** WWW Server: send EMAIL to webmaster@dell.com **\r\n ****************************************************\r\n
1274 35 0x0400000000004001 1258594163.247187000 0.000009000 0.078494016 0.238593000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 75 0 41 21 21 0x00 0x01 230 User logged in.\r\n
1275 35 0x0400000000004000 1258594163.247637000 0.078944000 0.000449984 0.319295000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 64 0 20 0 0 0x00 0x01
1276 35 0x0400000000004000 1258594163.249385000 0.001748000 0.002197984 0.321043000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 66 0 28 8 8 0x00 0x01 TYPE I\r\n
1277 35 0x0400000000004001 1258594163.327121000 0.079934000 0.077736000 0.318527000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 74 0 40 20 20 0x00 0x01 200 Type set to I.\r\n
1278 35 0x0400000000004000 1258594163.327845000 0.078460000 0.000724000 0.399503000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 64 0 26 6 6 0x00 0x01 PASV\r\n
1279 35 0x0400000000004001 1258594163.407582000 0.080461000 0.079737024 0.398988000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 104 0 70 50 50 0x00 0x09 227 Entering Passive Mode (143,166,11,10,251,78)\r\n
1283 35 0x0400000000004000 1258594163.487490000 0.159645000 0.079907968 0.559148000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 82 0 44 24 24 0x00 0x09 SIZE /video/R79733.EXE\r\n
1284 35 0x0400000000004001 1258594163.565990000 0.158408000 0.078500032 0.557396000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 67 0 33 13 13 0x00 0x09 213 4255056\r\n
1285 35 0x0400000000004000 1258594163.566694000 0.079204000 0.000704000 0.638352000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 82 0 44 24 24 0x00 0x09 RETR /video/R79733.EXE\r\n
1286 35 0x0400000000004001 1258594163.644188000 0.078198000 0.077494016 0.635594000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 108 0 74 54 54 0x00 0x09 125 Data connection already open; Transfer starting.\r\n
1303 35 0x0400000000004000 1258594163.838277000 0.271583000 0.194088960 0.909935000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 64 0 20 0 0 0x00 0x09
5898 35 0x0400000000004001 1258594185.427515000 21.783327000 21.589238016 22.418921000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 78 0 44 24 24 0x00 0x09 226 Transfer complete.\r\n
5900 35 0x0400000000004000 1258594185.618346000 21.780069000 0.190830976 22.690004000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 64 0 20 0 0 0x00 0x09
5902 35 0x0400000000004001 1258594491.683288000 306.255773000 306.064942016 328.674694000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 54 0 20 0 0 0x42 0x09Absolute/relative seq/ack numbers
If the tcpFlags plugin is added, sequence/acknowledgment numbers, window size and certain options are displayed in packet mode. The default of absolute seq/ack numbers can be changed to relative which is helpful when analyzing the evolution of such numbers. In order to change to relative representation move to the tcpFlags directory, open tcpFlags.h and set the constant to relative.
tcpFlags
vi src/tcpFlags.h
...
/* ========================================================================== */
/* ------------------------ USER CONFIGURATION FLAGS ------------------------ */
/* ========================================================================== */
...
#define SEQ_ACK_NUM 1 // 1: SEQ/ACK number feature analysis
...
// The following options require SEQ_ACK_NUM = 1
#define SPKTMD_SEQACKREL 0 // SEQ/ACK numbers representation (-s option):
// 0: absolute,
// 1: relative
#define SPKTMD_SEQACKHEX 0 // SEQ/ACK numbers representation (-s option):
// 0: uint32_t
// 1: hex32
...Note that SPKTMD_SEQACKHEX=0 means that seq/ack numbers are represented as integer.
The other option is hex, whatever is suited best for your post-processing.
We stick here with the default.
Now recompile the tcpFlags plugin and rerun t2:
t2conf tcpFlags -D SPKTMD_SEQACKREL=1 && t2build tcpFlags
t2 -r ~/data/faf-exercise.pcap -w ~/results/ -s
Extract flow 35 again from ~/results/faf-exercise_packets.txt and look for the seq and ack columns.
They are now all relative to the beginning of the flow.
tawk 'flow(35)' ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc ethVlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto pktLen l7Len ipToS ipID ipIDDiff ipFrag ipTTL ipHdrChkSum ipCalChkSum l4HdrChkSum l4CalChkSum ipFlags ip6HHOptLen ip6HHOpts ip6DOptLen ip6DOpts ipOptLen ipOpts seq ack seqMax seqDiff ackDiff seqLen ackLen seqFlowLen ackFlowLen tcpMLen tcpBFlgt tcpFStat tcpFlags tcpAnomaly tcpWin tcpWS tcpMSS tcpTmS tcpTmER tcpOptLen tcpOpts tcpStatesAFlags ftpStat l7Content
1266 35 0x0400000000004000 1258594162.928342 0.000000 0.000000 0.000000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 66 0 0x00 16230 0 0x4000 128 0x5ea0 0x5ea0 0x7ccd 0x7ccd 0x0040 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0010 0x0002 0x0000 8192 0 1460 0 0 8 0x02;0x04;0x05;0xb4;0x01;0x01;0x04;0x02 0x00 0x01
1267 35 0x0400000000004001 1258594163.008594 0.000000 0.080252 0.000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 62 0 0x00 55468 0 0x4000 239 0x5659 0x5659 0x1d37 0x1d37 0x0040 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0x0010 0x0212 0x0000 4140 0 1380 0 0 8 0x02;0x04;0x05;0x64;0x04;0x02;0x00;0x00 0x00 0x01
1268 35 0x0400000000004000 1258594163.009292 0.080950 0.000698 0.080950 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 64 0 0x00 16231 1 0x4000 128 0x5ea7 0x5ea7 0x5b79 0x5b79 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0x0811 0x0010 0x0000 64860 0 1460 0 0 0 0x00 0x01
1269 35 0x0400000000004001 1258594163.087792 0.079198 0.078500 0.079198 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 81 27 0x00 58625 3157 0x4000 239 0x49f1 0x49f1 0xad9d 0xad9d 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 27 27 0x0011 0x0018 0x0000 4140 0 1380 0 0 0 0x00 0x01 220 Microsoft FTP Service\r\n
1270 35 0x0400000000004000 1258594163.088491 0.079199 0.000699 0.160149 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 74 16 0x00 16243 12 0x4000 128 0x5e8b 0x5e8b 0xd384 0xd384 0x0040 0 0 0 1 28 1 0 27 0 27 0 27 16 16 0x0011 0x0018 0x0000 64833 0 1460 0 0 0 0x00 0x01 USER anonymous\r\n
1271 35 0x0400000000004001 1258594163.166256 0.078464 0.077765 0.157662 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 126 72 0x00 61580 2955 0x4000 239 0x3e39 0x3e39 0xf987 0xf987 0x0040 0 0 0 28 17 28 27 16 27 16 27 16 99 72 0x0811 0x0018 0x0000 4156 0 1380 0 0 0 0x00 0x01 331 Anonymous access allowed, send identity (e-mail name) as password.\r\n
1272 35 0x0400000000004000 1258594163.168693 0.080202 0.002437 0.240351 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 72 14 0x00 16244 1 0x4000 128 0x5e8c 0x5e8c 0x5f70 0x5f70 0x0040 0 0 0 17 100 17 16 72 16 72 16 99 30 14 0x0011 0x0018 0x0000 64761 0 1460 0 0 0 0x00 0x01 PASS IEUser@\r\n
1273 35 0x0400000000004001 1258594163.247178 0.080922 0.078485 0.238584 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 1004 950 0x00 64425 2845 0x4000 239 0x2fae 0x2fae 0x41de 0x41de 0x0040 0 0 0 100 31 100 72 14 72 14 99 30 1049 950 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0x01 230-Welcome to the Dell FTP site. A service of Dell Inc., Round Rock, Texas.\r\n For information about DELL, call +1 800 999 3355 All transfers are logged with\r\n your host name and email address. If you don't like this policy please disconnect now.\r\n Please be advised that use constitutes consent to monitoring (Elec Comm Priv Act,\r\n 18 USC 2701-2711). Please see the file readme.txt for disclaimers pertaining to this\r\n service. If your FTP client crashes or hangs shortly after login, try using a dash\r\n (-) as the first character of your password. This will turn off the informational\r\n messages which may be confusing your ftp client.\r\n ********IN CASE OF PROBLEMS*************************\r\n ** File Content: send EMAIL to dellbbs@dell.com **\r\n ** FTP Server: send EMAIL to hostmaster@dell.com **\r\n ** WWW Server: send EMAIL to webmaster@dell.com **\r\n ****************************************************\r\n
1274 35 0x0400000000004001 1258594163.247187 0.000009 0.078494 0.238593 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 75 21 0x00 64426 1 0x4000 239 0x334e 0x334e 0x2a2a 0x2a2a 0x0040 0 0 0 1050 31 1050 950 0 950 0 1049 30 1070 971 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0x01 230 User logged in.\r\n
1275 35 0x0400000000004000 1258594163.247637 0.078944 0.000450 0.319295 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 64 0 0x00 16253 9 0x4000 128 0x5e91 0x5e91 0x5b5b 0x5b5b 0x0040 0 0 0 31 1071 31 14 971 14 971 30 1070 30 0 0x0011 0x0010 0x0000 63790 0 1460 0 0 0 0x00 0x01
1276 35 0x0400000000004000 1258594163.249385 0.001748 0.002198 0.321043 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 66 8 0x00 16254 1 0x4000 128 0x5e88 0x5e88 0x8959 0x8959 0x0040 0 0 0 31 1071 31 0 0 0 0 30 1070 38 8 0x0811 0x0018 0x0000 63790 0 1460 0 0 0 0x00 0x01 TYPE I\r\n
1277 35 0x0400000000004001 1258594163.327121 0.079934 0.077736 0.318527 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 74 20 0x00 1622 -62804 0x4000 239 0x28a4 0x28a4 0xb130 0xb130 0x0044 0 0 0 1071 39 1071 21 8 21 8 1070 38 1090 20 0x0811 0x0018 0x0000 4178 0 1380 0 0 0 0x00 0x01 200 Type set to I.\r\n
1278 35 0x0400000000004000 1258594163.327845 0.078460 0.000724 0.399503 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 64 6 0x00 16255 1 0x4000 128 0x5e89 0x5e89 0xaaa3 0xaaa3 0x0040 0 0 0 39 1091 39 8 20 8 20 38 1090 44 6 0x0011 0x0018 0x0000 63770 0 1460 0 0 0 0x00 0x01 PASV\r\n
1279 35 0x0400000000004001 1258594163.407582 0.080461 0.079737 0.398988 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 104 50 0x00 5259 3637 0x4000 239 0x1a51 0x1a51 0xbf53 0xbf53 0x0040 0 0 0 1091 45 1091 20 6 20 6 1090 44 1140 50 0x0811 0x0018 0x0000 4184 0 1380 0 0 0 0x00 0x09 227 Entering Passive Mode (143,166,11,10,251,78)\r\n
1283 35 0x0400000000004000 1258594163.487490 0.159645 0.079908 0.559148 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 82 24 0x00 16267 12 0x4000 128 0x5e6b 0x5e6b 0xf13a 0xf13a 0x0040 0 0 0 45 1141 45 6 50 6 50 44 1140 68 24 0x0011 0x0018 0x0000 63720 0 1460 0 0 0 0x00 0x09 SIZE /video/R79733.EXE\r\n
1284 35 0x0400000000004001 1258594163.565990 0.158408 0.078500 0.557396 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 67 13 0x00 11024 5765 0x4000 239 0x03f1 0x03f1 0x049e 0x049e 0x0040 0 0 0 1141 69 1141 50 24 50 24 1140 68 1153 13 0x0811 0x0018 0x0000 4208 0 1380 0 0 0 0x00 0x09 213 4255056\r\n
1285 35 0x0400000000004000 1258594163.566694 0.079204 0.000704 0.638352 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 82 24 0x00 16268 1 0x4000 128 0x5e6a 0x5e6a 0xf819 0xf819 0x0040 0 0 0 69 1154 69 24 13 24 13 68 1153 92 24 0x0011 0x0018 0x0000 63707 0 1460 0 0 0 0x00 0x09 RETR /video/R79733.EXE\r\n
1286 35 0x0400000000004001 1258594163.644188 0.078198 0.077494 0.635594 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 108 54 0x00 14255 3231 0x4000 239 0xf728 0xf728 0xb8e3 0xb8e3 0x0040 0 0 0 1154 93 1154 13 24 13 24 1153 92 1207 54 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0x49 125 Data connection already open; Transfer starting.\r\n
1303 35 0x0400000000004000 1258594163.838277 0.271583 0.194089 0.909935 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 64 0 0x00 16289 21 0x4000 128 0x5e6d 0x5e6d 0x5b1d 0x5b1d 0x0040 0 0 0 93 1208 93 24 54 24 54 92 1207 92 0 0x0011 0x0010 0x0000 63653 0 1460 0 0 0 0x00 0x09
5898 35 0x0400000000004001 1258594185.427515 21.783327 21.589237 22.418921 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 78 24 0x00 40815 26560 0x4000 239 0x8f86 0x8f86 0x7425 0x7425 0x0040 0 0 0 1208 93 1208 54 0 54 0 1207 92 1231 24 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0x49 226 Transfer complete.\r\n
5900 35 0x0400000000004000 1258594185.618346 21.780069 0.190831 22.690004 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell 21 6 64 0 0x00 18617 2328 0x4000 128 0x5555 0x5555 0x5b1d 0x5b1d 0x0040 0 0 0 93 1232 93 0 24 0 24 92 1231 92 0 0x0011 0x0010 0x0000 63629 0 1460 0 0 0 0x00 0x09
5902 35 0x0400000000004001 1258594491.683288 306.255768 306.064941 328.674683 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell 21 192.168.1.105 07 Private network 49329 6 54 0 0x00 49361 8546 0x4000 239 0x6e3c 0x6e3c 0x431f 0x431f 0x0040 0 0 0 1232 93 1232 24 0 24 0 1231 92 1231 0 0x0811 0x0414 0x0000 4232 0 1380 0 0 0Adding more plugins
Let’s add some more plugins which contribute to the packet file.
t2build icmpDecode macRecorder portClassifier
...
BUILD SUCCESSFUL
t2 -s -r ~/data/faf-exercise.pcap -w ~/results
================================================================================ Tranalyzer 0.9.1 (Anteater), Cobra. PID: 16591, SID: 666 ================================================================================ [INF] Creating flows for L2, IPv4, IPv6 Active plugins: 01: basicFlow, 0.9.1 02: macRecorder, 0.9.1 03: portClassifier, 0.9.1 04: basicStats, 0.9.1 05: tcpFlags, 0.9.1 06: tcpStates, 0.9.1 07: icmpDecode, 0.9.1 08: ftpDecode, 0.9.1 09: txtSink, 0.9.1 [INF] IPv4 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 481577 (481.58 K) [INF] IPv6 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 41488 (41.49 K) [INF] macRecorder: 84110 (84.11 K) short org name records loaded Processing file: /home/user/data/faf-exercise.pcap Link layer type: Ethernet [EN10MB/1] Snapshot length: 65535 (65.53 K) Dump start: 1258544215.037210000 sec (Wed 18 Nov 2009 11:36:55 GMT) Dump stop : 1258594491.683288000 sec (Thu 19 Nov 2009 01:34:51 GMT) Total dump duration: 50276.646078000 sec (13h 57m 56s) Finished processing. Elapsed time: 0.061677920 sec Finished unloading flow memory. Time: 0.061710031 sec Percentage completed: 100.00% Number of processed packets: 5902 (5.90 K) Number of processed bytes: 4993414 (4.99 M) Number of raw bytes: 4993414 (4.99 M) Number of pcap bytes: 5087870 (5.09 M) Number of IPv4 packets: 5902 (5.90 K) [100.00%] Number of A packets: 1986 (1.99 K) [33.65%] Number of B packets: 3916 (3.92 K) [66.35%] Number of A bytes: 209315 (209.31 K) [4.19%] Number of B bytes: 4784099 (4.78 M) [95.81%] <A packet load>: 105.40 <B packet load>: 1221.68 (1.22 K) -------------------------------------------------------------------------------- basicStats: Flow max(pktload): 1376 (1.38 K) basicStats: Flow max(b/s), pkts: 8273466 (8.27 Mb/s), 73 basicStats: Biggest L3 flow talker: 143.166.11.10 (US): 3101 (3.10 K) [52.54%] packets basicStats: Biggest L3 flow talker: 143.166.11.10 (US): 4268858 (4.27 M) [85.49%] bytes tcpFlags: Aggregated ipFlags=0x0044 tcpFlags: Aggregated tcpFStat=0x4ff1 tcpFlags: Aggregated tcpFlags=0x071f tcpFlags: Aggregated tcpAnomaly=0x02cc tcpFlags: Number of TCP SYN retries, seq retries: 0, 27 tcpFlags: Number WinSz below 1: 3 [0.05%] tcpStates: Aggregated tcpStatesAFlags=0x4a ftpDecode: Aggregated ftpStat=0x0b ftpDecode: Number of FTP control packets: 22 [0.37%] ftpDecode: Number of FTP-DATA packets: 4612 (4.61 K) [78.14%] -------------------------------------------------------------------------------- ...
By invoking the same tawk query as before, we find from portClassifier a human readable output of the port based assignment of the embedded protocol; Here FTP.
macRecorder tells us that there is only one interface pair involved as macPairs is 1.
If load balancing is involved or an interface card is broken, there can be more macPairs per flow.
Moreover, the manufacturer is decoded from the first three octets of the MAC address.
icmpDecode output will be discussed below.
tcpFlags provides all aggregated information of IP and Layer 4. See the IP/TCP troubleshooting tutorial.
tawk 'bitsanyset($ftpStat, 0x01)' ~/results/faf-exercise_flows.txt | tcol
%dir flowInd flowStat timeFirst timeLast duration numHdrDesc numHdrs hdrDesc srcMac dstMac ethType vlanID srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto macStat macPairs srcMac_dstMac_numP srcMacLbl_dstMacLbl dstPortClassN dstPortClass numPktsSnt numPktsRcvd numBytesSnt numBytesRcvd minPktSz maxPktSz avePktSize stdPktSize minIAT maxIAT aveIAT stdIAT pktps bytps pktAsm bytAsm tcpFStat ipMindIPID ipMaxdIPID ipMinTTL ipMaxTTL ipTTLChg ipToS ipFlags ipOptCnt ipOptCpCl_Num ip6OptCntHH_D ip6OptHH_D tcpISeqN tcpPSeqCnt tcpSeqSntBytes tcpSeqFaultCnt tcpPAckCnt tcpFlwLssAckRcvdBytes tcpAckFaultCnt tcpBFlgtMx tcpInitWinSz tcpAveWinSz tcpMinWinSz tcpMaxWinSz tcpWinSzDwnCnt tcpWinSzUpCnt tcpWinSzChgDirCnt tcpWinSzThRt tcpFlags tcpAnomaly tcpOptPktCnt tcpOptCnt tcpOptions tcpMSS tcpWS tcpMPTBF tcpMPF tcpMPAID tcpMPDSSF tcpTmS tcpTmER tcpEcI tcpUtm tcpBtm tcpSSASAATrip tcpRTTAckTripMin tcpRTTAckTripMax tcpRTTAckTripAve tcpRTTAckTripJitAve tcpRTTSseqAA tcpRTTAckJitAve tcpStatesAFlags icmpStat icmpTCcnt icmpBFTypH_TypL_Code icmpTmGtw icmpEchoSuccRatio icmpPFindex ftpStat ftpCDFindex ftpCC ftpRC ftpNumUser ftpUser ftpNumPass ftpPass ftpNumCP ftpCP
A 35 0x0400000000004000 1258594162.928342000 1258594185.618346000 22.690004000 1 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 "Private network" 49329 143.166.11.10 us "Dell Technologies" 21 6 0x00 1 00:08:74:38:01:b4_00:19:e3:e7:5d:23_11 DellInc,US_AppleInc,US 21 ftp 11 11 92 1231 0 24 8.363636 10.15629 0 21.78007 2.062728 6.53995 0.484795 4.054649 0 -0.8609222 0x0811 1 2328 128 128 0 0x00 0x0040 0 0x00_0x00000000 0_0 0x00000000_0x00000000 2427598871 10 92 0 10 1231 0 24 8192 62176.56 8192 64860 8 1 9 0 0x001a 0x0000 1 4 0x00000016 1460 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0.08025197 0.07749402 306.0649 29.85101 91.8391 0.08094997 0 0x02 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x09 36 USER;PASS;TYPE;PASV;SIZE;RETR 1 "anonymous" 1 "IEUser@" 2 "I";"/video/R79733.EXE"
B 35 0x0400000000004001 1258594163.008594000 1258594491.683288000 328.674694000 1 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us "Dell Technologies" 21 192.168.1.105 07 "Private network" 49329 6 0x00 1 00:19:e3:e7:5d:23_00:08:74:38:01:b4_11 AppleInc,US_DellInc,US 21 ftp 11 11 1231 92 0 950 111.9091 303.9246 0 306.2558 29.87952 91.89713 0.03346774 3.745345 0 0.8609222 0x0811 2732 26560 239 239 0 0x00 0x0044 0 0x00_0x00000000 0_0 0x00000000_0x00000000 365320932 11 1231 0 11 92 0 971 4140 4214.603 4140 4232 0 6 1 0 0x061e 0x0000 1 2 0x00000014 1380 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0.000698 0.000449984 0.194089 0.04303963 0.07786669 29.89405 91.83913 0x42 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x09 36 220;331;230;200;227;213;125;226 0 0 1 "125 Data connection already open; Transfer startin"The packet mode provides now more info per packet. Now, the evolution of the anomaly bits, packet lengths, the seq/ack numbers, checksums and window size can be extracted on a packet per packet basis and directly fed into sequence analysis algorithms.
tawk 'flow(35)' ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto srcMacLbl dstMacLbl dstPortClassN dstPortClass pktLen udpLen snapL4Len snapL7Len l7Len ipToS ipID ipIDDiff ipFrag ipTTL ipHdrChkSum ipCalChkSum l4HdrChkSum l4CalChkSum ipFlags ip6HHOptLen ip6HHOpts ip6DOptLen ip6DOpts ipOptLen ipOpts seq ack seqMax seqDiff ackDiff seqLen ackLen seqFlowLen ackFlowLen tcpMLen tcpBFlgt tcpFStat tcpFlags tcpAnomaly tcpWin tcpWS tcpMSS tcpTmS tcpTmER tcpMPTyp tcpMPF tcpMPAID tcpMPDSSF tcpOptLen tcpOpts tcpStatesAFlags icmpStat icmpType icmpCode icmpID icmpSeq icmpPFindex ftpStat l7Content
1266 35 0x0400000000004000 1258594162.928342000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 0 0 0x00 16230 0 0x4000 128 0x5ea0 0x5ea0 0x7ccd 0x7ccd 0x0040 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0010 0x0002 0x0000 8192 0 1460 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0xb4;0x01;0x01;0x04;0x02 0x00 0x00 0x01
1267 35 0x0400000000004001 1258594163.008594000 0.000000000 0.080251968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 62 0 28 0 0 0x00 55468 0 0x4000 239 0x5659 0x5659 0x1d37 0x1d37 0x0040 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0x0010 0x0212 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0x64;0x04;0x02;0x00;0x00 0x00 0x00 0x01
1268 35 0x0400000000004000 1258594163.009292000 0.080950000 0.000698000 0.080950000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16231 1 0x4000 128 0x5ea7 0x5ea7 0x5b79 0x5b79 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0x0811 0x0010 0x0000 64860 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1269 35 0x0400000000004001 1258594163.087792000 0.079198000 0.078500000 0.079198000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 81 0 47 27 27 0x00 58625 3157 0x4000 239 0x49f1 0x49f1 0xad9d 0xad9d 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 27 27 0x0011 0x0018 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 220 Microsoft FTP Service\r\n
1270 35 0x0400000000004000 1258594163.088491000 0.079199000 0.000699000 0.160149000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 74 0 36 16 16 0x00 16243 12 0x4000 128 0x5e8b 0x5e8b 0xd384 0xd384 0x0040 0 0 0 1 28 1 0 27 0 27 0 27 16 16 0x0011 0x0018 0x0000 64833 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 USER anonymous\r\n
1271 35 0x0400000000004001 1258594163.166256000 0.078464000 0.077765000 0.157662000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 126 0 92 72 72 0x00 61580 2955 0x4000 239 0x3e39 0x3e39 0xf987 0xf987 0x0040 0 0 0 28 17 28 27 16 27 16 27 16 99 72 0x0811 0x0018 0x0000 4156 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 331 Anonymous access allowed, send identity (e-mail name) as password.\r\n
1272 35 0x0400000000004000 1258594163.168693000 0.080202000 0.002436992 0.240351000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 72 0 34 14 14 0x00 16244 1 0x4000 128 0x5e8c 0x5e8c 0x5f70 0x5f70 0x0040 0 0 0 17 100 17 16 72 16 72 16 99 30 14 0x0011 0x0018 0x0000 64761 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 PASS IEUser@\r\n
1273 35 0x0400000000004001 1258594163.247178000 0.080922000 0.078485008 0.238584000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 1004 0 970 950 950 0x00 64425 2845 0x4000 239 0x2fae 0x2fae 0x41de 0x41de 0x0040 0 0 0 100 31 100 72 14 72 14 99 30 1049 950 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 230-Welcome to the Dell FTP site. A service of Dell Inc., Round Rock, Texas.\r\n For information about DELL, call +1 800 999 3355 All transfers are logged with\r\n your host name and email address. If you don't like this policy please disconnect now.\r\n Please be advised that use constitutes consent to monitoring (Elec Comm Priv Act,\r\n 18 USC 2701-2711). Please see the file readme.txt for disclaimers pertaining to this\r\n service. If your FTP client crashes or hangs shortly after login, try using a dash\r\n (-) as the first character of your password. This will turn off the informational\r\n messages which may be confusing your ftp client.\r\n ********IN CASE OF PROBLEMS*************************\r\n ** File Content: send EMAIL to dellbbs@dell.com **\r\n ** FTP Server: send EMAIL to hostmaster@dell.com **\r\n ** WWW Server: send EMAIL to webmaster@dell.com **\r\n ****************************************************\r\n
1274 35 0x0400000000004001 1258594163.247187000 0.000009000 0.078494016 0.238593000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 75 0 41 21 21 0x00 64426 1 0x4000 239 0x334e 0x334e 0x2a2a 0x2a2a 0x0040 0 0 0 1050 31 1050 950 0 950 0 1049 30 1070 971 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 230 User logged in.\r\n
1275 35 0x0400000000004000 1258594163.247637000 0.078944000 0.000449984 0.319295000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16253 9 0x4000 128 0x5e91 0x5e91 0x5b5b 0x5b5b 0x0040 0 0 0 31 1071 31 14 971 14 971 30 1070 30 0 0x0011 0x0010 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1276 35 0x0400000000004000 1258594163.249385000 0.001748000 0.002197984 0.321043000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 8 8 0x00 16254 1 0x4000 128 0x5e88 0x5e88 0x8959 0x8959 0x0040 0 0 0 31 1071 31 0 0 0 0 30 1070 38 8 0x0811 0x0018 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 TYPE I\r\n
1277 35 0x0400000000004001 1258594163.327121000 0.079934000 0.077736000 0.318527000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 74 0 40 20 20 0x00 1622 -62804 0x4000 239 0x28a4 0x28a4 0xb130 0xb130 0x0044 0 0 0 1071 39 1071 21 8 21 8 1070 38 1090 20 0x0811 0x0018 0x0000 4178 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 200 Type set to I.\r\n
1278 35 0x0400000000004000 1258594163.327845000 0.078460000 0.000724000 0.399503000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 26 6 6 0x00 16255 1 0x4000 128 0x5e89 0x5e89 0xaaa3 0xaaa3 0x0040 0 0 0 39 1091 39 8 20 8 20 38 1090 44 6 0x0011 0x0018 0x0000 63770 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 PASV\r\n
1279 35 0x0400000000004001 1258594163.407582000 0.080461000 0.079737024 0.398988000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 104 0 70 50 50 0x00 5259 3637 0x4000 239 0x1a51 0x1a51 0xbf53 0xbf53 0x0040 0 0 0 1091 45 1091 20 6 20 6 1090 44 1140 50 0x0811 0x0018 0x0000 4184 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 227 Entering Passive Mode (143,166,11,10,251,78)\r\n
1283 35 0x0400000000004000 1258594163.487490000 0.159645000 0.079907968 0.559148000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16267 12 0x4000 128 0x5e6b 0x5e6b 0xf13a 0xf13a 0x0040 0 0 0 45 1141 45 6 50 6 50 44 1140 68 24 0x0011 0x0018 0x0000 63720 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 SIZE /video/R79733.EXE\r\n
1284 35 0x0400000000004001 1258594163.565990000 0.158408000 0.078500032 0.557396000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 67 0 33 13 13 0x00 11024 5765 0x4000 239 0x03f1 0x03f1 0x049e 0x049e 0x0040 0 0 0 1141 69 1141 50 24 50 24 1140 68 1153 13 0x0811 0x0018 0x0000 4208 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 213 4255056\r\n
1285 35 0x0400000000004000 1258594163.566694000 0.079204000 0.000704000 0.638352000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16268 1 0x4000 128 0x5e6a 0x5e6a 0xf819 0xf819 0x0040 0 0 0 69 1154 69 24 13 24 13 68 1153 92 24 0x0011 0x0018 0x0000 63707 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 RETR /video/R79733.EXE\r\n
1286 35 0x0400000000004001 1258594163.644188000 0.078198000 0.077494016 0.635594000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 108 0 74 54 54 0x00 14255 3231 0x4000 239 0xf728 0xf728 0xb8e3 0xb8e3 0x0040 0 0 0 1154 93 1154 13 24 13 24 1153 92 1207 54 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 125 Data connection already open; Transfer starting.\r\n
1303 35 0x0400000000004000 1258594163.838277000 0.271583000 0.194088960 0.909935000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16289 21 0x4000 128 0x5e6d 0x5e6d 0x5b1d 0x5b1d 0x0040 0 0 0 93 1208 93 24 54 24 54 92 1207 92 0 0x0011 0x0010 0x0000 63653 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5898 35 0x0400000000004001 1258594185.427515000 21.783327000 21.589238016 22.418921000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 78 0 44 24 24 0x00 40815 26560 0x4000 239 0x8f86 0x8f86 0x7425 0x7425 0x0040 0 0 0 1208 93 1208 54 0 54 0 1207 92 1231 24 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 226 Transfer complete.\r\n
5900 35 0x0400000000004000 1258594185.618346000 21.780069000 0.190830976 22.690004000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 18617 2328 0x4000 128 0x5555 0x5555 0x5b1d 0x5b1d 0x0040 0 0 0 93 1232 93 0 24 0 24 92 1231 92 0 0x0011 0x0010 0x0000 63629 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5902 35 0x0400000000004001 1258594491.683288000 306.255773000 306.064942016 328.674694000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 54 0 20 0 0 0x00 49361 8546 0x4000 239 0x6e3c 0x6e3c 0x431f 0x431f 0x0040 0 0 0 1232 93 1232 24 0 24 0 1231 92 1231 0 0x0811 0x0414 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x42 0x00 0x09Changing L7 output format to hex
The configuration of the packet mode currently resides at compile-time in a header file: main.h.
This will change in future and bring more flexibility to the packet mode.
You can either switch on/off the packet number or the output type of layer 7 content.
Both may be switched on simultaneously, in which case the human readable output is appended after the hexadecimal output.
The prepended 0x facilitates the post-processing with command line scripts. Nevertheless,
it may be simpler for the human eye to remove these characters, then set
SPKTMD_PCNTH_PREF to "". Also the separator can be changed, default is " ".
The start of the printout can be chosen with SPKTMD_PCNTL, default is the layer 7 header.
tranalyzer2
vi src/main.h
/* ========================================================================== */
/* ------------------------ USER CONFIGURATION FLAGS ------------------------ */
/* ========================================================================== */
...
// Packet mode (-s option)
#define SPKTMD_PKTNO 1 // Whether or not to print the packet number
#define SPKTMD_PCNTC 1 // Whether or not to print L7 content as characters
#define SPKTMD_PCNTH 0 // Whether or not to print L7 content as hex
#define SPKTMD_PCNTL 4 // 0: Print the full payload of the packet
// 1: Print payload from L2
// 2: Print payload from L3
// 3: Print payload from L4
// 4: Print payload from L7
#define SPKTMD_BOPS 0x00 // Operations on content
// 0x00: MSB, no bit inverse, no shift
// 0x01: LSB, Bit inverse
// 0x02: Nibble SWAP
// 0x10: Shift right
// 0x20: if 0x10: shift from last byte into extra trailing byte
...
#define SPKTMD_BSHFT_POS 5 // Bitshift byte pos start
#define SPKTMD_BSHFT 2 // Bitshift
/* +++++++++++++++++++++ ENV / RUNTIME - conf Variables +++++++++++++++++++++ */
// Configure packet mode as hex
#define SPKTMD_PCNTH_PREF "0x" // Prefix to add to every byte ("" -> ab cd instead of 0xab 0xcd)
#define SPKTMD_PCNTH_SEP " " // Byte separator ("," -> 0xab,0xcd instead of 0xab 0xcd)
/* ========================================================================== */
/* ------------------------- DO NOT EDIT BELOW HERE ------------------------- */
/* ========================================================================== */Now switch from human readable to hexadecimal values using t2conf, recompile the core and rerun t2:
t2conf tranalyzer2 -D SPKTMD_PCNTC=0 -D SPKTMD_PCNTH=1 && t2build tranalyzer2
t2 -r ~/data/faf-exercise.pcap -w ~/results -s
If we select our FTP flow again by the flowInd, we now find the L7 output in hex.
The format enables you to directly read the L7 binary content with tawk without recoding from text.
tawk 'flow(35)' ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto srcMacLbl dstMacLbl dstPortClassN dstPortClass pktLen udpLen snapL4Len snapL7Len l7Len ipToS ipID ipIDDiff ipFrag ipTTL ipHdrChkSum ipCalChkSum l4HdrChkSum l4CalChkSum ipFlags ip6HHOptLen ip6HHOpts ip6DOptLen ip6DOpts ipOptLen ipOpts seq ack seqMax seqDiff ackDiff seqLen ackLen seqFlowLen ackFlowLen tcpMLen tcpBFlgt tcpFStat tcpFlags tcpAnomaly tcpWin tcpWS tcpMSS tcpTmS tcpTmER tcpMPTyp tcpMPF tcpMPAID tcpMPDSSF tcpOptLen tcpOpts tcpStatesAFlags icmpStat icmpType icmpCode icmpID icmpSeq icmpPFindex ftpStat l7HexContent
1266 35 0x0400000000004000 1258594162.928342000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 0 0 0x00 16230 0 0x4000 128 0x5ea0 0x5ea0 0x7ccd 0x7ccd 0x0040 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0010 0x0002 0x0000 8192 0 1460 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0xb4;0x01;0x01;0x04;0x02 0x00 0x00 0x01
1267 35 0x0400000000004001 1258594163.008594000 0.000000000 0.080251968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 62 0 28 0 0 0x00 55468 0 0x4000 239 0x5659 0x5659 0x1d37 0x1d37 0x0040 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0x0010 0x0212 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0x64;0x04;0x02;0x00;0x00 0x00 0x00 0x01
1268 35 0x0400000000004000 1258594163.009292000 0.080950000 0.000698000 0.080950000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16231 1 0x4000 128 0x5ea7 0x5ea7 0x5b79 0x5b79 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0x0811 0x0010 0x0000 64860 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1269 35 0x0400000000004001 1258594163.087792000 0.079198000 0.078500000 0.079198000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 81 0 47 27 27 0x00 58625 3157 0x4000 239 0x49f1 0x49f1 0xad9d 0xad9d 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 27 27 0x0011 0x0018 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x32 0x32 0x30 0x20 0x4d 0x69 0x63 0x72 0x6f 0x73 0x6f 0x66 0x74 0x20 0x46 0x54 0x50 0x20 0x53 0x65 0x72 0x76 0x69 0x63 0x65 0x0d 0x0a
1270 35 0x0400000000004000 1258594163.088491000 0.079199000 0.000699000 0.160149000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 74 0 36 16 16 0x00 16243 12 0x4000 128 0x5e8b 0x5e8b 0xd384 0xd384 0x0040 0 0 0 1 28 1 0 27 0 27 0 27 16 16 0x0011 0x0018 0x0000 64833 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x55 0x53 0x45 0x52 0x20 0x61 0x6e 0x6f 0x6e 0x79 0x6d 0x6f 0x75 0x73 0x0d 0x0a
1271 35 0x0400000000004001 1258594163.166256000 0.078464000 0.077765000 0.157662000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 126 0 92 72 72 0x00 61580 2955 0x4000 239 0x3e39 0x3e39 0xf987 0xf987 0x0040 0 0 0 28 17 28 27 16 27 16 27 16 99 72 0x0811 0x0018 0x0000 4156 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x33 0x33 0x31 0x20 0x41 0x6e 0x6f 0x6e 0x79 0x6d 0x6f 0x75 0x73 0x20 0x61 0x63 0x63 0x65 0x73 0x73 0x20 0x61 0x6c 0x6c 0x6f 0x77 0x65 0x64 0x2c 0x20 0x73 0x65 0x6e 0x64 0x20 0x69 0x64 0x65 0x6e 0x74 0x69 0x74 0x79 0x20 0x28 0x65 0x2d 0x6d 0x61 0x69 0x6c 0x20 0x6e 0x61 0x6d 0x65 0x29 0x20 0x61 0x73 0x20 0x70 0x61 0x73 0x73 0x77 0x6f 0x72 0x64 0x2e 0x0d 0x0a
1272 35 0x0400000000004000 1258594163.168693000 0.080202000 0.002436992 0.240351000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 72 0 34 14 14 0x00 16244 1 0x4000 128 0x5e8c 0x5e8c 0x5f70 0x5f70 0x0040 0 0 0 17 100 17 16 72 16 72 16 99 30 14 0x0011 0x0018 0x0000 64761 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x50 0x41 0x53 0x53 0x20 0x49 0x45 0x55 0x73 0x65 0x72 0x40 0x0d 0x0a
1273 35 0x0400000000004001 1258594163.247178000 0.080922000 0.078485008 0.238584000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 1004 0 970 950 950 0x00 64425 2845 0x4000 239 0x2fae 0x2fae 0x41de 0x41de 0x0040 0 0 0 100 31 100 72 14 72 14 99 30 1049 950 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x32 0x33 0x30 0x2d 0x57 0x65 0x6c 0x63 0x6f 0x6d 0x65 0x20 0x74 0x6f 0x20 0x74 0x68 0x65 0x20 0x44 0x65 0x6c 0x6c 0x20 0x46 0x54 0x50 0x20 0x73 0x69 0x74 0x65 0x2e 0x20 0x41 0x20 0x73 0x65 0x72 0x76 0x69 0x63 0x65 0x20 0x6f 0x66 0x20 0x44 0x65 0x6c 0x6c 0x20 0x49 0x6e 0x63 0x2e 0x2c 0x20 0x52 0x6f 0x75 0x6e 0x64 0x20 0x52 0x6f 0x63 0x6b 0x2c 0x20 0x54 0x65 0x78 0x61 0x73 0x2e 0x0d 0x0a 0x20 0x20 0x20 0x20 0x46 0x6f 0x72 0x20 0x69 0x6e 0x66 0x6f 0x72 0x6d 0x61 0x74 0x69 0x6f 0x6e 0x20 0x61 0x62 0x6f 0x75 0x74 0x20 0x44 0x45 0x4c 0x4c 0x2c 0x20 0x63 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0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x2a 0x0d 0x0a
1274 35 0x0400000000004001 1258594163.247187000 0.000009000 0.078494016 0.238593000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 75 0 41 21 21 0x00 64426 1 0x4000 239 0x334e 0x334e 0x2a2a 0x2a2a 0x0040 0 0 0 1050 31 1050 950 0 950 0 1049 30 1070 971 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x32 0x33 0x30 0x20 0x55 0x73 0x65 0x72 0x20 0x6c 0x6f 0x67 0x67 0x65 0x64 0x20 0x69 0x6e 0x2e 0x0d 0x0a
1275 35 0x0400000000004000 1258594163.247637000 0.078944000 0.000449984 0.319295000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16253 9 0x4000 128 0x5e91 0x5e91 0x5b5b 0x5b5b 0x0040 0 0 0 31 1071 31 14 971 14 971 30 1070 30 0 0x0011 0x0010 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1276 35 0x0400000000004000 1258594163.249385000 0.001748000 0.002197984 0.321043000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 8 8 0x00 16254 1 0x4000 128 0x5e88 0x5e88 0x8959 0x8959 0x0040 0 0 0 31 1071 31 0 0 0 0 30 1070 38 8 0x0811 0x0018 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x54 0x59 0x50 0x45 0x20 0x49 0x0d 0x0a
1277 35 0x0400000000004001 1258594163.327121000 0.079934000 0.077736000 0.318527000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 74 0 40 20 20 0x00 1622 -62804 0x4000 239 0x28a4 0x28a4 0xb130 0xb130 0x0044 0 0 0 1071 39 1071 21 8 21 8 1070 38 1090 20 0x0811 0x0018 0x0000 4178 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x32 0x30 0x30 0x20 0x54 0x79 0x70 0x65 0x20 0x73 0x65 0x74 0x20 0x74 0x6f 0x20 0x49 0x2e 0x0d 0x0a
1278 35 0x0400000000004000 1258594163.327845000 0.078460000 0.000724000 0.399503000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 26 6 6 0x00 16255 1 0x4000 128 0x5e89 0x5e89 0xaaa3 0xaaa3 0x0040 0 0 0 39 1091 39 8 20 8 20 38 1090 44 6 0x0011 0x0018 0x0000 63770 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 0x50 0x41 0x53 0x56 0x0d 0x0a
1279 35 0x0400000000004001 1258594163.407582000 0.080461000 0.079737024 0.398988000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 104 0 70 50 50 0x00 5259 3637 0x4000 239 0x1a51 0x1a51 0xbf53 0xbf53 0x0040 0 0 0 1091 45 1091 20 6 20 6 1090 44 1140 50 0x0811 0x0018 0x0000 4184 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x32 0x32 0x37 0x20 0x45 0x6e 0x74 0x65 0x72 0x69 0x6e 0x67 0x20 0x50 0x61 0x73 0x73 0x69 0x76 0x65 0x20 0x4d 0x6f 0x64 0x65 0x20 0x28 0x31 0x34 0x33 0x2c 0x31 0x36 0x36 0x2c 0x31 0x31 0x2c 0x31 0x30 0x2c 0x32 0x35 0x31 0x2c 0x37 0x38 0x29 0x0d 0x0a
1283 35 0x0400000000004000 1258594163.487490000 0.159645000 0.079907968 0.559148000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16267 12 0x4000 128 0x5e6b 0x5e6b 0xf13a 0xf13a 0x0040 0 0 0 45 1141 45 6 50 6 50 44 1140 68 24 0x0011 0x0018 0x0000 63720 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x53 0x49 0x5a 0x45 0x20 0x2f 0x76 0x69 0x64 0x65 0x6f 0x2f 0x52 0x37 0x39 0x37 0x33 0x33 0x2e 0x45 0x58 0x45 0x0d 0x0a
1284 35 0x0400000000004001 1258594163.565990000 0.158408000 0.078500032 0.557396000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 67 0 33 13 13 0x00 11024 5765 0x4000 239 0x03f1 0x03f1 0x049e 0x049e 0x0040 0 0 0 1141 69 1141 50 24 50 24 1140 68 1153 13 0x0811 0x0018 0x0000 4208 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x32 0x31 0x33 0x20 0x34 0x32 0x35 0x35 0x30 0x35 0x36 0x0d 0x0a
1285 35 0x0400000000004000 1258594163.566694000 0.079204000 0.000704000 0.638352000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16268 1 0x4000 128 0x5e6a 0x5e6a 0xf819 0xf819 0x0040 0 0 0 69 1154 69 24 13 24 13 68 1153 92 24 0x0011 0x0018 0x0000 63707 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x52 0x45 0x54 0x52 0x20 0x2f 0x76 0x69 0x64 0x65 0x6f 0x2f 0x52 0x37 0x39 0x37 0x33 0x33 0x2e 0x45 0x58 0x45 0x0d 0x0a
1286 35 0x0400000000004001 1258594163.644188000 0.078198000 0.077494016 0.635594000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 108 0 74 54 54 0x00 14255 3231 0x4000 239 0xf728 0xf728 0xb8e3 0xb8e3 0x0040 0 0 0 1154 93 1154 13 24 13 24 1153 92 1207 54 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x31 0x32 0x35 0x20 0x44 0x61 0x74 0x61 0x20 0x63 0x6f 0x6e 0x6e 0x65 0x63 0x74 0x69 0x6f 0x6e 0x20 0x61 0x6c 0x72 0x65 0x61 0x64 0x79 0x20 0x6f 0x70 0x65 0x6e 0x3b 0x20 0x54 0x72 0x61 0x6e 0x73 0x66 0x65 0x72 0x20 0x73 0x74 0x61 0x72 0x74 0x69 0x6e 0x67 0x2e 0x0d 0x0a
1303 35 0x0400000000004000 1258594163.838277000 0.271583000 0.194088960 0.909935000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16289 21 0x4000 128 0x5e6d 0x5e6d 0x5b1d 0x5b1d 0x0040 0 0 0 93 1208 93 24 54 24 54 92 1207 92 0 0x0011 0x0010 0x0000 63653 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5898 35 0x0400000000004001 1258594185.427515000 21.783327000 21.589238016 22.418921000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 78 0 44 24 24 0x00 40815 26560 0x4000 239 0x8f86 0x8f86 0x7425 0x7425 0x0040 0 0 0 1208 93 1208 54 0 54 0 1207 92 1231 24 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 0x32 0x32 0x36 0x20 0x54 0x72 0x61 0x6e 0x73 0x66 0x65 0x72 0x20 0x63 0x6f 0x6d 0x70 0x6c 0x65 0x74 0x65 0x2e 0x0d 0x0a
5900 35 0x0400000000004000 1258594185.618346000 21.780069000 0.190830976 22.690004000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 18617 2328 0x4000 128 0x5555 0x5555 0x5b1d 0x5b1d 0x0040 0 0 0 93 1232 93 0 24 0 24 92 1231 92 0 0x0011 0x0010 0x0000 63629 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5902 35 0x0400000000004001 1258594491.683288000 306.255773000 306.064942016 328.674694000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 54 0 20 0 0 0x00 49361 8546 0x4000 239 0x6e3c 0x6e3c 0x431f 0x431f 0x0040 0 0 0 1232 93 1232 24 0 24 0 1231 92 1231 0 0x0811 0x0414 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x42 0x00 0x09Now try to remove the 0x prefix:
t2conf tranalyzer2 -D SPKTMD_PCNTH_PREF="" && t2build tranalyzer2
t2 -r ~/data/faf-exercise.pcap -w ~/results -s
See? The 0x is gone.
tawk 'flow(35)' ~/results/faf-exercise_packets.txt | tcol
%pktNo flowInd flowStat time pktIAT pktTrip flowDuration numHdrs hdrDesc vlanID srcMac dstMac ethType srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto srcMacLbl dstMacLbl dstPortClassN dstPortClass pktLen udpLen snapL4Len snapL7Len l7Len ipToS ipID ipIDDiff ipFrag ipTTL ipHdrChkSum ipCalChkSum l4HdrChkSum l4CalChkSum ipFlags ip6HHOptLen ip6HHOpts ip6DOptLen ip6DOpts ipOptLen ipOpts seq ack seqMax seqDiff ackDiff seqLen ackLen seqFlowLen ackFlowLen tcpMLen tcpBFlgt tcpFStat tcpFlags tcpAnomaly tcpWin tcpWS tcpMSS tcpTmS tcpTmER tcpMPTyp tcpMPF tcpMPAID tcpMPDSSF tcpOptLen tcpOpts tcpStatesAFlags icmpStat icmpType icmpCode icmpID icmpSeq icmpPFindex ftpStat l7HexContent
1266 35 0x0400000000004000 1258594162.928342000 0.000000000 0.000000000 0.000000000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 0 0 0x00 16230 0 0x4000 128 0x5ea0 0x5ea0 0x7ccd 0x7ccd 0x0040 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0010 0x0002 0x0000 8192 0 1460 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0xb4;0x01;0x01;0x04;0x02 0x00 0x00 0x01
1267 35 0x0400000000004001 1258594163.008594000 0.000000000 0.080251968 0.000000000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 62 0 28 0 0 0x00 55468 0 0x4000 239 0x5659 0x5659 0x1d37 0x1d37 0x0040 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0x0010 0x0212 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 8 0x02;0x04;0x05;0x64;0x04;0x02;0x00;0x00 0x00 0x00 0x01
1268 35 0x0400000000004000 1258594163.009292000 0.080950000 0.000698000 0.080950000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16231 1 0x4000 128 0x5ea7 0x5ea7 0x5b79 0x5b79 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0x0811 0x0010 0x0000 64860 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1269 35 0x0400000000004001 1258594163.087792000 0.079198000 0.078500000 0.079198000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 81 0 47 27 27 0x00 58625 3157 0x4000 239 0x49f1 0x49f1 0xad9d 0xad9d 0x0040 0 0 0 1 1 1 1 0 0 0 0 0 27 27 0x0011 0x0018 0x0000 4140 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 32 32 30 20 4d 69 63 72 6f 73 6f 66 74 20 46 54 50 20 53 65 72 76 69 63 65 0d 0a
1270 35 0x0400000000004000 1258594163.088491000 0.079199000 0.000699000 0.160149000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 74 0 36 16 16 0x00 16243 12 0x4000 128 0x5e8b 0x5e8b 0xd384 0xd384 0x0040 0 0 0 1 28 1 0 27 0 27 0 27 16 16 0x0011 0x0018 0x0000 64833 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 55 53 45 52 20 61 6e 6f 6e 79 6d 6f 75 73 0d 0a
1271 35 0x0400000000004001 1258594163.166256000 0.078464000 0.077765000 0.157662000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 126 0 92 72 72 0x00 61580 2955 0x4000 239 0x3e39 0x3e39 0xf987 0xf987 0x0040 0 0 0 28 17 28 27 16 27 16 27 16 99 72 0x0811 0x0018 0x0000 4156 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 33 33 31 20 41 6e 6f 6e 79 6d 6f 75 73 20 61 63 63 65 73 73 20 61 6c 6c 6f 77 65 64 2c 20 73 65 6e 64 20 69 64 65 6e 74 69 74 79 20 28 65 2d 6d 61 69 6c 20 6e 61 6d 65 29 20 61 73 20 70 61 73 73 77 6f 72 64 2e 0d 0a
1272 35 0x0400000000004000 1258594163.168693000 0.080202000 0.002436992 0.240351000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 72 0 34 14 14 0x00 16244 1 0x4000 128 0x5e8c 0x5e8c 0x5f70 0x5f70 0x0040 0 0 0 17 100 17 16 72 16 72 16 99 30 14 0x0011 0x0018 0x0000 64761 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 50 41 53 53 20 49 45 55 73 65 72 40 0d 0a
1273 35 0x0400000000004001 1258594163.247178000 0.080922000 0.078485008 0.238584000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 1004 0 970 950 950 0x00 64425 2845 0x4000 239 0x2fae 0x2fae 0x41de 0x41de 0x0040 0 0 0 100 31 100 72 14 72 14 99 30 1049 950 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 32 33 30 2d 57 65 6c 63 6f 6d 65 20 74 6f 20 74 68 65 20 44 65 6c 6c 20 46 54 50 20 73 69 74 65 2e 20 41 20 73 65 72 76 69 63 65 20 6f 66 20 44 65 6c 6c 20 49 6e 63 2e 2c 20 52 6f 75 6e 64 20 52 6f 63 6b 2c 20 54 65 78 61 73 2e 0d 0a 20 20 20 20 46 6f 72 20 69 6e 66 6f 72 6d 61 74 69 6f 6e 20 61 62 6f 75 74 20 44 45 4c 4c 2c 20 63 61 6c 6c 20 2b 31 20 38 30 30 20 39 39 39 20 33 33 35 35 20 41 6c 6c 20 74 72 61 6e 73 66 65 72 73 20 61 72 65 20 6c 6f 67 67 65 64 20 77 69 74 68 0d 0a 20 20 20 20 79 6f 75 72 20 68 6f 73 74 20 6e 61 6d 65 20 61 6e 64 20 65 6d 61 69 6c 20 61 64 64 72 65 73 73 2e 20 49 66 20 79 6f 75 20 64 6f 6e 27 74 20 6c 69 6b 65 20 74 68 69 73 20 70 6f 6c 69 63 79 20 70 6c 65 61 73 65 20 64 69 73 63 6f 6e 6e 65 63 74 20 6e 6f 77 2e 0d 0a 20 20 20 20 50 6c 65 61 73 65 20 62 65 20 61 64 76 69 73 65 64 20 74 68 61 74 20 75 73 65 20 63 6f 6e 73 74 69 74 75 74 65 73 20 63 6f 6e 73 65 6e 74 20 74 6f 20 6d 6f 6e 69 74 6f 72 69 6e 67 20 28 45 6c 65 63 20 43 6f 6d 6d 20 50 72 69 76 20 41 63 74 2c 0d 0a 20 20 20 20 31 38 20 55 53 43 20 32 37 30 31 2d 32 37 31 31 29 2e 20 50 6c 65 61 73 65 20 73 65 65 20 74 68 65 20 66 69 6c 65 20 72 65 61 64 6d 65 2e 74 78 74 20 66 6f 72 20 64 69 73 63 6c 61 69 6d 65 72 73 20 70 65 72 74 61 69 6e 69 6e 67 20 74 6f 20 74 68 69 73 0d 0a 20 20 20 20 73 65 72 76 69 63 65 2e 20 49 66 20 79 6f 75 72 20 46 54 50 20 63 6c 69 65 6e 74 20 63 72 61 73 68 65 73 20 6f 72 20 68 61 6e 67 73 20 73 68 6f 72 74 6c 79 20 61 66 74 65 72 20 6c 6f 67 69 6e 2c 20 74 72 79 20 75 73 69 6e 67 20 61 20 64 61 73 68 0d 0a 20 20 20 20 28 2d 29 20 61 73 20 74 68 65 20 66 69 72 73 74 20 63 68 61 72 61 63 74 65 72 20 6f 66 20 79 6f 75 72 20 70 61 73 73 77 6f 72 64 2e 20 54 68 69 73 20 77 69 6c 6c 20 74 75 72 6e 20 6f 66 66 20 74 68 65 20 69 6e 66 6f 72 6d 61 74 69 6f 6e 61 6c 0d 0a 20 20 20 20 6d 65 73 73 61 67 65 73 20 77 68 69 63 68 20 6d 61 79 20 62 65 20 63 6f 6e 66 75 73 69 6e 67 20 79 6f 75 72 20 66 74 70 20 63 6c 69 65 6e 74 2e 0d 0a 20 20 20 20 2a 2a 2a 2a 2a 2a 2a 2a 49 4e 20 43 41 53 45 20 4f 46 20 50 52 4f 42 4c 45 4d 53 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0d 0a 20 20 20 20 2a 2a 20 46 69 6c 65 20 43 6f 6e 74 65 6e 74 3a 20 73 65 6e 64 20 45 4d 41 49 4c 20 74 6f 20 64 65 6c 6c 62 62 73 40 64 65 6c 6c 2e 63 6f 6d 20 20 20 2a 2a 0d 0a 20 20 20 20 2a 2a 20 46 54 50 20 53 65 72 76 65 72 3a 20 73 65 6e 64 20 45 4d 41 49 4c 20 74 6f 20 68 6f 73 74 6d 61 73 74 65 72 40 64 65 6c 6c 2e 63 6f 6d 20 20 2a 2a 0d 0a 20 20 20 20 2a 2a 20 57 57 57 20 53 65 72 76 65 72 3a 20 73 65 6e 64 20 45 4d 41 49 4c 20 74 6f 20 77 65 62 6d 61 73 74 65 72 40 64 65 6c 6c 2e 63 6f 6d 20 20 20 2a 2a 0d 0a 20 20 20 20 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0d 0a
1274 35 0x0400000000004001 1258594163.247187000 0.000009000 0.078494016 0.238593000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 75 0 41 21 21 0x00 64426 1 0x4000 239 0x334e 0x334e 0x2a2a 0x2a2a 0x0040 0 0 0 1050 31 1050 950 0 950 0 1049 30 1070 971 0x0811 0x0018 0x0000 4170 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 32 33 30 20 55 73 65 72 20 6c 6f 67 67 65 64 20 69 6e 2e 0d 0a
1275 35 0x0400000000004000 1258594163.247637000 0.078944000 0.000449984 0.319295000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16253 9 0x4000 128 0x5e91 0x5e91 0x5b5b 0x5b5b 0x0040 0 0 0 31 1071 31 14 971 14 971 30 1070 30 0 0x0011 0x0010 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01
1276 35 0x0400000000004000 1258594163.249385000 0.001748000 0.002197984 0.321043000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 66 0 28 8 8 0x00 16254 1 0x4000 128 0x5e88 0x5e88 0x8959 0x8959 0x0040 0 0 0 31 1071 31 0 0 0 0 30 1070 38 8 0x0811 0x0018 0x0000 63790 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 54 59 50 45 20 49 0d 0a
1277 35 0x0400000000004001 1258594163.327121000 0.079934000 0.077736000 0.318527000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 74 0 40 20 20 0x00 1622 -62804 0x4000 239 0x28a4 0x28a4 0xb130 0xb130 0x0044 0 0 0 1071 39 1071 21 8 21 8 1070 38 1090 20 0x0811 0x0018 0x0000 4178 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 32 30 30 20 54 79 70 65 20 73 65 74 20 74 6f 20 49 2e 0d 0a
1278 35 0x0400000000004000 1258594163.327845000 0.078460000 0.000724000 0.399503000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 26 6 6 0x00 16255 1 0x4000 128 0x5e89 0x5e89 0xaaa3 0xaaa3 0x0040 0 0 0 39 1091 39 8 20 8 20 38 1090 44 6 0x0011 0x0018 0x0000 63770 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x01 50 41 53 56 0d 0a
1279 35 0x0400000000004001 1258594163.407582000 0.080461000 0.079737024 0.398988000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 104 0 70 50 50 0x00 5259 3637 0x4000 239 0x1a51 0x1a51 0xbf53 0xbf53 0x0040 0 0 0 1091 45 1091 20 6 20 6 1090 44 1140 50 0x0811 0x0018 0x0000 4184 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 32 32 37 20 45 6e 74 65 72 69 6e 67 20 50 61 73 73 69 76 65 20 4d 6f 64 65 20 28 31 34 33 2c 31 36 36 2c 31 31 2c 31 30 2c 32 35 31 2c 37 38 29 0d 0a
1283 35 0x0400000000004000 1258594163.487490000 0.159645000 0.079907968 0.559148000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16267 12 0x4000 128 0x5e6b 0x5e6b 0xf13a 0xf13a 0x0040 0 0 0 45 1141 45 6 50 6 50 44 1140 68 24 0x0011 0x0018 0x0000 63720 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 53 49 5a 45 20 2f 76 69 64 65 6f 2f 52 37 39 37 33 33 2e 45 58 45 0d 0a
1284 35 0x0400000000004001 1258594163.565990000 0.158408000 0.078500032 0.557396000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 67 0 33 13 13 0x00 11024 5765 0x4000 239 0x03f1 0x03f1 0x049e 0x049e 0x0040 0 0 0 1141 69 1141 50 24 50 24 1140 68 1153 13 0x0811 0x0018 0x0000 4208 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 32 31 33 20 34 32 35 35 30 35 36 0d 0a
1285 35 0x0400000000004000 1258594163.566694000 0.079204000 0.000704000 0.638352000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 82 0 44 24 24 0x00 16268 1 0x4000 128 0x5e6a 0x5e6a 0xf819 0xf819 0x0040 0 0 0 69 1154 69 24 13 24 13 68 1153 92 24 0x0011 0x0018 0x0000 63707 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 52 45 54 52 20 2f 76 69 64 65 6f 2f 52 37 39 37 33 33 2e 45 58 45 0d 0a
1286 35 0x0400000000004001 1258594163.644188000 0.078198000 0.077494016 0.635594000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 108 0 74 54 54 0x00 14255 3231 0x4000 239 0xf728 0xf728 0xb8e3 0xb8e3 0x0040 0 0 0 1154 93 1154 13 24 13 24 1153 92 1207 54 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 31 32 35 20 44 61 74 61 20 63 6f 6e 6e 65 63 74 69 6f 6e 20 61 6c 72 65 61 64 79 20 6f 70 65 6e 3b 20 54 72 61 6e 73 66 65 72 20 73 74 61 72 74 69 6e 67 2e 0d 0a
1303 35 0x0400000000004000 1258594163.838277000 0.271583000 0.194088960 0.909935000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 16289 21 0x4000 128 0x5e6d 0x5e6d 0x5b1d 0x5b1d 0x0040 0 0 0 93 1208 93 24 54 24 54 92 1207 92 0 0x0011 0x0010 0x0000 63653 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5898 35 0x0400000000004001 1258594185.427515000 21.783327000 21.589238016 22.418921000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 78 0 44 24 24 0x00 40815 26560 0x4000 239 0x8f86 0x8f86 0x7425 0x7425 0x0040 0 0 0 1208 93 1208 54 0 54 0 1207 92 1231 24 0x0811 0x0018 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09 32 32 36 20 54 72 61 6e 73 66 65 72 20 63 6f 6d 70 6c 65 74 65 2e 0d 0a
5900 35 0x0400000000004000 1258594185.618346000 21.780069000 0.190830976 22.690004000 3 eth:ipv4:tcp 00:08:74:38:01:b4 00:19:e3:e7:5d:23 0x0800 192.168.1.105 07 Private network 49329 143.166.11.10 us Dell Technologies 21 6 DellInc,US AppleInc,US 21 ftp 64 0 20 0 0 0x00 18617 2328 0x4000 128 0x5555 0x5555 0x5b1d 0x5b1d 0x0040 0 0 0 93 1232 93 0 24 0 24 92 1231 92 0 0x0011 0x0010 0x0000 63629 0 1460 0 0 0 0x00 0 0x00 0 0x00 0x00 0x09
5902 35 0x0400000000004001 1258594491.683288000 306.255773000 306.064942016 328.674694000 3 eth:ipv4:tcp 00:19:e3:e7:5d:23 00:08:74:38:01:b4 0x0800 143.166.11.10 us Dell Technologies 21 192.168.1.105 07 Private network 49329 6 AppleInc,US DellInc,US 21 ftp 54 0 20 0 0 0x00 49361 8546 0x4000 239 0x6e3c 0x6e3c 0x431f 0x431f 0x0040 0 0 0 1232 93 1232 24 0 24 0 1231 92 1231 0 0x0811 0x0414 0x0000 4232 0 1380 0 0 0 0x00 0 0x00 0 0x42 0x00 0x09Try to switch to layer 3 header as homework.
Bit ops on payload
In forensics and protocol reversing, certain bit operations such as bit reversal, nibble flip or shift operations come in handy. Hence, the core of T2 supports all of these ops in packet mode, so that the user is not required to write additional post processing scripts.
tranalyzer2
vi src/main.h
...
// Packet mode (-s option)
#define SPKTMD_PKTNO 1 // Whether or not to print the packet number
#define SPKTMD_PCNTC 1 // Whether or not to print L7 content as characters
#define SPKTMD_PCNTH 0 // Whether or not to print L7 content as hex
#define SPKTMD_PCNTL 4 // 0: Print the full payload of the packet
// 1: Print payload from L2
// 2: Print payload from L3
// 3: Print payload from L4
// 4: Print payload from L7
#define SPKTMD_BOPS 0x00 // Operations on content, selected by SPKTMD_PCNTL
// 0x00: MSB, no bit inverse, no shift
// 0x01: LSB, Bit inverse
// 0x02: Nibble SWAP
// 0x10: Shift right
// 0x20: if 0x10: shift from last byte into extra trailing byte
#define SPKTMD_BSHFT_POS 5 // Bitshift byte pos start
#define SPKTMD_BSHFT 2 // Bitshift
...SPKTMD_BOPS controls all bit ops on the payload as selected by SPKTMD_PCNTL, so currently
on L7 with starting byte position SPKTMD_BSHFT_POS=5. By default no op is selected.
The first bit inverts all bits of every byte, the second swaps the nibbles. The 5th shifts
all content to the right and the 6th adds a trailing byte where the bit of the last byte
will be shifted to. Any of the bits can be selected independently. The sequence of ops is
defined as follows if all ops are selected: (0x13)
- shift
- bit inverse
- nibble swap
As homework, try all modes independently. Switch shift from the 10th byte on and look at the hex content, whether you see what is expected. Then try bit inverse, so you can expect bit7->bit0, bit6->bit1, … Nibble swap, should be clear. if you have questions, write the Anteater an email, he’ll help.
Now reset to default output again for the next chapter:
t2conf tranalyzer2 --reset && t2build tranalyzer2
Selecting flows and packets
Maybe you want to look for a certain anomaly or you are interested in all ICMP messages.
As our present PCAP does not contain ICMP, download annoloc2.pcap and run t2 on it:
================================================================================ Tranalyzer 0.9.1 (Anteater), Cobra. PID: 19181, SID: 666 ================================================================================ [INF] Creating flows for L2, IPv4, IPv6 Active plugins: 01: basicFlow, 0.9.1 02: macRecorder, 0.9.1 03: portClassifier, 0.9.1 04: basicStats, 0.9.1 05: tcpFlags, 0.9.1 06: tcpStates, 0.9.1 07: icmpDecode, 0.9.1 08: ftpDecode, 0.9.1 09: txtSink, 0.9.1 [INF] IPv4 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 481577 (481.58 K) [INF] IPv6 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 41488 (41.49 K) [INF] macRecorder: 84110 (84.11 K) short org name records loaded Processing file: /home/user/data/annoloc2.pcap Link layer type: Ethernet [EN10MB/1] Snapshot length: 66 Dump start: 1022171701.691172000 sec (Thu 23 May 2002 16:35:01 GMT) [WRN] snapL2Length: 54 - snapL3Length: 40 - IP length in header: 1500 Dump stop : 1022171726.640398000 sec (Thu 23 May 2002 16:35:26 GMT) Total dump duration: 24.949226000 sec Finished processing. Elapsed time: 4.535087491 sec Finished unloading flow memory. Time: 4.737622826 sec Percentage completed: 100.00% Number of processed packets: 1219015 (1.22 M) Number of processed bytes: 64082726 (64.08 M) Number of raw bytes: 844642686 (844.64 M) Number of pad bytes: 8591685635 (8.59 G) Number of pcap bytes: 83586990 (83.59 M) Number of IPv4 packets: 1218588 (1.22 M) [99.96%] Number of IPv6 packets: 180 [0.01%] Number of A packets: 561592 (561.59 K) [46.07%] Number of B packets: 657423 (657.42 K) [53.93%] Number of A bytes: 29274120 (29.27 M) [45.68%] Number of B bytes: 34808606 (34.81 M) [54.32%] <A packet load>: 52.13 <B packet load>: 52.95 -------------------------------------------------------------------------------- macRecorder: MAC pairs per flow: min: 1, max: 2, average: 1.00 basicStats: Flow max(pktload): 1480 (1.48 K) basicStats: Flow max(b/s), pkts: 19015999488 (19.02 Gb/s), 2 basicStats: Biggest L2 flow talker: 00:d0:02:6d:78:00: 57 [0.00%] packets basicStats: Biggest L2 flow talker: 00:d0:02:6d:78:00: 2622 (2.62 K) [0.00%] bytes basicStats: Biggest L3 flow talker: 138.212.189.38 (JP): 23601 (23.60 K) [1.94%] packets basicStats: Biggest L3 flow talker: 138.212.189.38 (JP): 33731054 (33.73 M) [52.64%] bytes tcpFlags: Aggregated ipFlags=0x7964 tcpFlags: Aggregated tcpFStat=0x5fff tcpFlags: Aggregated tcpFlags=0x0fdf tcpFlags: Aggregated tcpAnomaly=0x33ff tcpFlags: Aggregated ipToS=0xff tcpFlags: Number of TCP scans attempted, successful: 959, 886 [92.39%] tcpFlags: Number of TCP SYN retries, seq retries: 147, 5252 (5.25 K) tcpFlags: Number WinSz below 1: 1443 (1.44 K) [0.15%] tcpStates: Aggregated tcpStatesAFlags=0xdf icmpDecode: Aggregated icmpStat=0x21 icmpDecode: Number of ICMP echo request packets: 224 [7.32%] icmpDecode: Number of ICMP echo reply packets: 191 [6.24%] icmpDecode: ICMP echo reply / request ratio: 0.85 ftpDecode: Aggregated ftpStat=0x01 ftpDecode: Number of FTP control packets: 2082 (2.08 K) [0.17%] -------------------------------------------------------------------------------- Headers count: min: 2, max: 5, average: 3.01 Number of ARP packets: 247 [0.02%] Number of GRE packets: 20 [0.00%] Number of IGMP packets: 12 [0.00%] Number of ICMP packets: 3059 (3.06 K) [0.25%] Number of ICMPv6 packets: 11 [0.00%] Number of TCP packets: 948743 (948.74 K) [77.83%] Number of TCP bytes: 52643546 (52.64 M) [82.15%] Number of UDP packets: 266900 (266.90 K) [21.89%] Number of UDP bytes: 11234272 (11.23 M) [17.53%] Number of IPv4 fragmented packets: 2284 (2.28 K) [0.19%] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Number of processed flows: 17603 (17.60 K) Number of processed L2 flows: 99 [0.56%] Number of processed IPv4 flows: 17440 (17.44 K) [99.07%] Number of processed IPv6 flows: 64 [0.36%] Number of processed A flows: 9995 (9.99 K) [56.78%] Number of processed B flows: 7608 (7.61 K) [43.22%] Number of request flows: 9467 (9.47 K) [53.78%] Number of reply flows: 8136 (8.14 K) [46.22%] Total A/B flow asymmetry: 0.14 Total req/rply flow asymmetry: 0.08 Number of processed packets/flows: 69.25 Number of processed A packets/flows: 56.19 Number of processed B packets/flows: 86.41 Number of processed total packets/s: 48859.83 (48.86 K) Number of processed A+B packets/s: 48859.83 (48.86 K) Number of processed A packets/s: 22509.40 (22.51 K) Number of processed B packets/s: 26350.44 (26.35 K) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <Number of processed flows/s>: 705.55 <Bandwidth>: 270268480 b/s (270.27 Mb/s) <Snapped bandwidth>: 20548205 b/s (20.55 Mb/s) <Raw bandwidth>: 270835716 b/s (270.84 Mb/s) Max number of flows in memory: 15220 (15.22 K) [5.81%] Memory usage: 0.11 GB [0.17%] Aggregated flowStat=0x0c0098fa0222d044 [WRN] L3 SnapLength < Length in IP header [WRN] L4 header snapped [WRN] Consecutive duplicate IP ID [WRN] IPv4/6 payload length > framing length [WRN] IPv4/6 fragmentation header packet missing [WRN] IPv4/6 packet fragmentation sequence not finished [INF] Stop dissecting: Clipped packet, unhandled protocol or subsequent fragment [INF] Layer 2 flows [INF] IPv4 flows [INF] IPv6 flows [INF] ARP [INF] IPv4/6 fragmentation [INF] IPv4/6 in IPv4/6 [INF] GRE encapsulation [INF] GTP tunnel [INF] SSDP/UPnP
Oups, snap length warning up to the IP header. That’s bad, so we will not see much content, as you can see in the packet file.
tawk 'icmp()' ~/results/annoloc2_flows.txt | head | tcol
%dir flowInd flowStat timeFirst timeLast duration numHdrDesc numHdrs hdrDesc srcMac dstMac ethType vlanID srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto macStat macPairs srcMac_dstMac_numP srcMacLbl_dstMacLbl dstPortClassN dstPortClass numPktsSnt numPktsRcvd numBytesSnt numBytesRcvd minPktSz maxPktSz avePktSize stdPktSize minIAT maxIAT aveIAT stdIAT pktps bytps pktAsm bytAsm tcpFStat ipMindIPID ipMaxdIPID ipMinTTL ipMaxTTL ipTTLChg ipToS ipFlags ipOptCnt ipOptCpCl_Num ip6OptCntHH_D ip6OptHH_D tcpISeqN tcpPSeqCnt tcpSeqSntBytes tcpSeqFaultCnt tcpPAckCnt tcpFlwLssAckRcvdBytes tcpAckFaultCnt tcpBFlgtMx tcpInitWinSz tcpAveWinSz tcpMinWinSz tcpMaxWinSz tcpWinSzDwnCnt tcpWinSzUpCnt tcpWinSzChgDirCnt tcpWinSzThRt tcpFlags tcpAnomaly tcpOptPktCnt tcpOptCnt tcpOptions tcpMSS tcpWS tcpMPTBF tcpMPF tcpMPAID tcpMPDSSF tcpTmS tcpTmER tcpEcI tcpUtm tcpBtm tcpSSASAATrip tcpRTTAckTripMin tcpRTTAckTripMax tcpRTTAckTripAve tcpRTTAckTripJitAve tcpRTTSseqAA tcpRTTAckJitAve tcpStatesAFlags icmpStat icmpTCcnt icmpBFTypH_TypL_Code icmpTmGtw icmpEchoSuccRatio icmpPFindex ftpStat ftpCDFindex ftpCC ftpRC ftpNumUser ftpUser ftpNumPass ftpPass ftpNumCP ftpCP
A 59 0x0400000200004001 1022171701.692762000 1022171701.692762000 0.000000000 1 3 eth:ipv4:icmp 00:80:48:b3:22:ef 00:d0:02:6d:78:00 0x0800 138.212.187.10 jp "ASAHI KASEI CORPORATION" 0 201.116.148.149 mx "Uninet SA de CV" 0 1 0x00 1 00:80:48:b3:22:ef_00:d0:02:6d:78:00_1 COMPEXINC,US_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 59 0x00 0 0 0
A 893 0x0400000200004001 1022171701.812425000 1022171701.812425000 0.000000000 1 3 eth:ipv4:icmp 00:80:48:d7:ed:7a 00:d0:02:6d:78:00 0x0800 138.212.189.88 jp "ASAHI KASEI CORPORATION" 0 201.116.161.83 mx "Uninet SA de CV" 0 1 0x00 1 00:80:48:d7:ed:7a_00:d0:02:6d:78:00_1 COMPEXINC,US_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 893 0x00 0 0 0
A 1069 0x0400000200004001 1022171701.889357000 1022171701.889357000 0.000000000 1 3 eth:ipv4:icmp 00:48:54:7a:04:0f 00:d0:02:6d:78:00 0x0800 138.212.184.71 jp "ASAHI KASEI CORPORATION" 0 146.208.9.41 us "Keysight Technologies" 0 1 0x00 1 00:48:54:7a:04:0f_00:d0:02:6d:78:00_1 -_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1069 0x00 0 0 0
A 1177 0x0400000200004001 1022171701.956543000 1022171701.956543000 0.000000000 1 3 eth:ipv4:icmp 00:d0:02:6d:78:00 00:80:48:b3:22:c4 0x0800 201.118.86.105 mx "Uninet SA de CV" 0 138.212.189.66 jp "ASAHI KASEI CORPORATION" 0 1 0x00 1 00:d0:02:6d:78:00_00:80:48:b3:22:c4_1 DITECHCOR,US_COMPEXINC,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 246 246 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0002 0x00000000 0 1177 0x00 0 0 0
A 1204 0x0400000200004001 1022171701.980834000 1022171701.980834000 0.000000000 1 3 eth:ipv4:icmp 00:d0:02:6d:78:00 00:80:48:b3:22:c4 0x0800 138.213.40.91 br "Early registration addresses" 0 138.212.189.66 jp "ASAHI KASEI CORPORATION" 0 1 0x00 1 00:d0:02:6d:78:00_00:80:48:b3:22:c4_1 DITECHCOR,US_COMPEXINC,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 113 113 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1204 0x00 0 0 0
A 1232 0x0400000200004001 1022171702.009674000 1022171702.009674000 0.000000000 1 3 eth:ipv4:icmp 00:48:54:7a:04:0f 00:d0:02:6d:78:00 0x0800 138.212.184.71 jp "ASAHI KASEI CORPORATION" 0 36.237.77.156 tw "Data Communication Business Gr" 0 1 0x00 1 00:48:54:7a:04:0f_00:d0:02:6d:78:00_1 -_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1232 0x00 0 0 0
A 1557 0x0400000200004001 1022171702.247453000 1022171702.247453000 0.000000000 1 3 eth:ipv4:icmp 00:04:76:22:07:90 00:d0:02:6d:78:00 0x0800 138.212.186.88 jp "ASAHI KASEI CORPORATION" 0 201.19.77.72 br "Telemar Norte Leste SA" 0 1 0x00 1 00:04:76:22:07:90_00:d0:02:6d:78:00_1 3com,US_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1557 0x00 0 0 0
A 1572 0x0400000200004001 1022171702.265015000 1022171702.265015000 0.000000000 1 3 eth:ipv4:icmp 00:08:a1:1d:3f:f1 00:d0:02:6d:78:00 0x0800 138.212.191.25 jp "ASAHI KASEI CORPORATION" 0 19.50.144.156 us "MAINT-APNIC-AP" 0 1 0x00 1 00:08:a1:1d:3f:f1_00:d0:02:6d:78:00_1 CNetTechI,TW_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1572 0x00 0 0 0
A 1718 0x0400000200004001 1022171702.396273000 1022171702.396273000 0.000000000 1 3 eth:ipv4:icmp 00:80:48:b3:24:eb 00:d0:02:6d:78:00 0x0800 138.212.190.25 jp "ASAHI KASEI CORPORATION" 0 19.6.20.159 us "MAINT-APNIC-AP" 0 1 0x00 1 00:80:48:b3:24:eb_00:d0:02:6d:78:00_1 COMPEXINC,US_DITECHCOR,US 0 unknown 1 0 28 0 28 28 28 28 0 0 0 0 0 0 -1 1 0x0001 65535 0 128 128 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 1 0x00000000_0x00000008_0x0008 0x00000000 0 1718 0x00 0 0 0icmpDecode links an ICMP message to the flow who caused it, so with a one liner we can select all the linked flows from the flow file.
tawk -H 'icmp() && $icmpPFindex { printf "%d;", $icmpPFindex } END { printf "\n" }' ~/results/annoloc2_flows.txt59;893;1069;1177;1204;1232;1557;1572;1718;1741;1750;1820;1877;1877;1906;1987;1996;2037;2092;2124;2228;2253;2389;2469;2504;2523;2532;2540;2571;2588;2655;2692;2725;2745;1161;2835;2847;2899;2921;2927;2943;2971;2972;3002;3024;3107;3128;3131;3152;3165;3229;398;3244;3348;2385;1657;1549;1746;2362;1801;3590;1910;1807;3612;1896;591;2099;2137;3707;1482;2176;2180;3815;2770;2505;2539;3251;2850;2763;2942;2779;3047;2695;4325;3113;3157;3149;3172;3212;2649;4408;1137;637;1055;1226;1217;3267;4516;4561;3499;1593;4601;1652;4611;1701;4613;1922;2330;4633;1774;1929;1854;2558;2042;2570;3659;2091;4871;2665;2486;2466;4938;2882;2596;2769;2580;3001;5079;2759;2716;2908;1465;3008;5233;3163;3234;4525;3188;3261;3603;5477;3328;5503;5532;3464;3701;2121;3416;3468;3508;2906;5642;3548;4688;4736;3720;5827;3698;5901;4949;3872;3572;3998;4120;3273;4130;5237;4221;4261;3235;4297;5335;4165;4357;4377;6322;4299;3718;5434;4416;6425;4500;4764;4509;5811;4664;6520;4695;4717;4763;6628;4823;6607;5525;4828;4864;4691;4998;6775;4977;5708;6816;6830;4941;4969;5135;4968;5403;5124;4556;5316;5249;5248;5252;5272;4669;6397;7188;5360;5422;5494;5390;5367;5581;5651;5636;5630;5589;6595;5012;5501;5659;7433;5666;5731;5698;3434;5750;6915;1436;7063;6684;5887;6859;6772;5877;6945;6946;5970;6881;5822;5934;5988;5347;5419;6041;5430;6063;5125;6065;7299;6260;6089;6140;7046;6232;6200;6179;6300;7578;6339;6380;6362;6390;5829;6440;6370;6536;6509;6828;6574;8350;6650;6649;8463;6759;6760;6755;6740;6783;6799;6834;8060;5223;6879;1684;6892;6932;6908;6889;6997;7037;8897;8917;7974;7222;7102;7416;7211;9015;8157;7298;8077;1531;2852;8230;7463;7511;9168;8140;7338;1338;1308;3928;977;9215;7454;9235;1935;7439;1157;1947;9263;1972;2052;8313;9292;8365;8351;8708;8083;1358;6972;1587;2086;1489;2261;9333;9340;7886;8427;9353;4020;1933;8421;9360;8451;1624;2217;7527;7667;9378;9385;7548;9402;8545;7609;784;8508;7615;9422;2347;8453;9441;7645;9465;2205;9487;9498;9500;8285;7668;8560;9535;1764;2335;2358;9523;7688;8619;7705;2103;7722;2604;7752;8320;9607;8108;2232;7753;9627;9629;8769;2263;9641;8006;7699;866;2375;9662;9666;3330;9673;8729;9680;2633;7836;9701;9711;8467;3516;9067;9726;8843;7848;7784;2734;9180;8051;8809;2761;7907;8009;8433;8816;2356;2813;7921;2855;6249;2840;7913;1144;8583;9792;2669;2521;1870;9834;8906;9843;3142;2980;380;8043;9869;3028;9875;790;8923;9889;9891;8091;2965;9925;3144;1013;3201;575;3207;730;8966;3037;731;9976;1029;540;1051;8158;9415;1111;
And select some of them:
tawk 'flow("889;1051;1165;1179;1221;1554")' ~/results/annoloc2_flows.txt | tcol
%dir flowInd flowStat timeFirst timeLast duration numHdrDesc numHdrs hdrDesc srcMac dstMac ethType vlanID srcIP srcIPCC srcIPOrg srcPort dstIP dstIPCC dstIPOrg dstPort l4Proto macStat macPairs srcMac_dstMac_numP srcMacLbl_dstMacLbl dstPortClassN dstPortClass numPktsSnt numPktsRcvd numBytesSnt numBytesRcvd minPktSz maxPktSz avePktSize stdPktSize minIAT maxIAT aveIAT stdIAT pktps bytps pktAsm bytAsm tcpFStat ipMindIPID ipMaxdIPID ipMinTTL ipMaxTTL ipTTLChg ipToS ipFlags ipOptCnt ipOptCpCl_Num ip6OptCntHH_D ip6OptHH_D tcpISeqN tcpPSeqCnt tcpSeqSntBytes tcpSeqFaultCnt tcpPAckCnt tcpFlwLssAckRcvdBytes tcpAckFaultCnt tcpBFlgtMx tcpInitWinSz tcpAveWinSz tcpMinWinSz tcpMaxWinSz tcpWinSzDwnCnt tcpWinSzUpCnt tcpWinSzChgDirCnt tcpWinSzThRt tcpFlags tcpAnomaly tcpOptPktCnt tcpOptCnt tcpOptions tcpMSS tcpWS tcpMPTBF tcpMPF tcpMPAID tcpMPDSSF tcpTmS tcpTmER tcpEcI tcpUtm tcpBtm tcpSSASAATrip tcpRTTAckTripMin tcpRTTAckTripMax tcpRTTAckTripAve tcpRTTAckTripJitAve tcpRTTSseqAA tcpRTTAckJitAve tcpStatesAFlags icmpStat icmpTCcnt icmpBFTypH_TypL_Code icmpTmGtw icmpEchoSuccRatio icmpPFindex ftpStat ftpCDFindex ftpCC ftpRC ftpNumUser ftpUser ftpNumPass ftpPass ftpNumCP ftpCP
A 889 0x0400000200004000 1022171701.811421000 1022171702.089237000 0.277816000 1 3 eth:ipv4:udp 00:d0:02:6d:78:00 00:00:e8:8f:b7:93 0x0800 170.197.107.104 us "Sea-Land Services" 18164 138.212.185.98 jp "ASAHI KASEI CORPORATION" 28015 17 0x00 1 00:d0:02:6d:78:00_00:00:e8:8f:b7:93_2 DITECHCOR,US_AcctonTec,US 28015 unknown 2 2 17 1192 8 9 8.5 6.403124 0 0.277816 0.138908 0.1964456 7.199009 61.19158 0 -0.9718776 0x0001 25 25 107 107 0 0x00 0x3800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0.06713402 0.037482 0.06713402 0.05230801 0.02096714 0.277816 0 0x00 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
B 889 0x0400000200004001 1022171701.878555000 1022171702.126719000 0.248164000 1 3 eth:ipv4:udp 00:00:e8:8f:b7:93 00:d0:02:6d:78:00 0x0800 138.212.185.98 jp "ASAHI KASEI CORPORATION" 28015 170.197.107.104 us "Sea-Land Services" 18164 17 0x00 1 00:00:e8:8f:b7:93_00:d0:02:6d:78:00_2 AcctonTec,US_DITECHCOR,US 28015 unknown 2 2 1192 17 98 1094 596 1046.148 0 0.248164 0.124082 0.1754784 8.059187 4803.275 0 0.9718776 0x0001 100 100 64 64 0 0x00 0x3800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0.210682 0.210682 0.210682 0.210682 0 0.26299 0.02096714 0x00 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
A 1554 0x0400000200004000 1022171702.246761000 1022171702.246761000 0.000000000 1 3 eth:ipv4:udp 00:d0:02:6d:78:00 00:00:e8:8f:b7:93 0x0800 193.175.162.199 de "DFN-LIR-MNT" 1138 138.212.185.98 jp "ASAHI KASEI CORPORATION" 27015 17 0x00 1 00:d0:02:6d:78:00_00:00:e8:8f:b7:93_1 DITECHCOR,US_AcctonTec,US 27015 unknown 1 1 9 6 9 9 9 9 0 0 0 0 0 0 0 0.2 0x0001 65535 0 117 117 0 0x00 0x3800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0.008453008 0.008453008 0.008453008 0.008453008 0 0.008453008 0 0x00 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
B 1554 0x0400000200004001 1022171702.255214000 1022171702.255214000 0.000000000 1 3 eth:ipv4:udp 00:00:e8:8f:b7:93 00:d0:02:6d:78:00 0x0800 138.212.185.98 jp "ASAHI KASEI CORPORATION" 27015 193.175.162.199 de "DFN-LIR-MNT" 1138 17 0x00 1 00:00:e8:8f:b7:93_00:d0:02:6d:78:00_1 AcctonTec,US_DITECHCOR,US 27015 unknown 1 1 6 9 6 6 6 6 0 0 0 0 0 0 0 -0.2 0x0001 65535 0 64 64 0 0x00 0x3800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0.008453008 0 0x00 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
A 1221 0x0400000200004000 1022171702.003105000 1022171726.232882000 24.229777000 1 3 eth:ipv4:tcp 00:d0:02:6d:78:00 00:00:1c:b6:15:75 0x0800 173.143.243.87 us "Sprint Communications" 1313 138.212.184.34 jp "ASAHI KASEI CORPORATION" 4662 6 0x00 1 00:d0:02:6d:78:00_00:00:1c:b6:15:75_74 DITECHCOR,US_BellTech,US 4662 oms 74 107 46 130055 0 41 0.6216216 4.806583 0 2.479512 0.3274294 0.414261 3.054093 1.89849 -0.1823204 -0.9992929 0x0811 1281 22528 111 111 0 0x00 0x1844 0 0x00_0x00000000 0_0 0x00000000_0x00000000 43342326 74 46 0 74 133424 1 41 8484 8406.719 7195 8484 11 11 11 0 0x0058 0x0100 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 0.002586048 1.825197 0.03973731 0.1775885 0 0 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
B 1221 0x0400000200004001 1022171702.009685000 1022171725.837036000 23.827351000 1 3 eth:ipv4:tcp 00:00:1c:b6:15:75 00:d0:02:6d:78:00 0x0800 138.212.184.34 jp "ASAHI KASEI CORPORATION" 4662 173.143.243.87 us "Sprint Communications" 1313 6 0x00 1 00:00:1c:b6:15:75_00:d0:02:6d:78:00_107 BellTech,US_DITECHCOR,US 4662 oms 107 74 130055 46 0 1414 1215.467 477.4761 0 2.658446 0.2226855 0.4524964 4.490638 5458.223 0.1823204 0.9992929 0x0011 1 2048 128 128 0 0x00 0x1844 0 0x00_0x00000000 0_0 0x00000000_0x00000000 1686136000 106 130596 0 107 46 0 7075 63344 63298 63298 63344 2 0 0 0 0x0058 0x0200 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 0.000567008 1.668696 0.4638892 0.400939 0.5036265 0.4385085 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
A 1179 0x0400000200004000 1022171701.958774000 1022171726.616651000 24.657877000 1 3 eth:ipv4:tcp 00:d0:02:6d:78:00 00:80:48:b3:22:c4 0x0800 83.24.78.221 pl "TPNET" 3204 138.212.189.66 jp "ASAHI KASEI CORPORATION" 1214 6 0x00 1 00:d0:02:6d:78:00_00:80:48:b3:22:c4_33 DITECHCOR,US_COMPEXINC,US 1214 kazaa 33 32 1975 1275 0 1460 59.84848 254.1091 0 4.173618 0.7472084 0.8226424 1.338315 80.09611 0.01538462 0.2153846 0x0811 1 198 115 115 0 0x00 0x1840 0 0x00_0x00000000 0_0 0x00000000_0x00000000 3045997063 33 1918 0 33 1275 0 1460 16070 16401.18 16070 17520 21 1 22 0 0x0058 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 1.9008e-05 1.458637 0.3520578 0.4273103 0 0 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
B 1179 0x0400000200004001 1022171702.148305000 1022171726.177771000 24.029466000 1 3 eth:ipv4:tcp 00:80:48:b3:22:c4 00:d0:02:6d:78:00 0x0800 138.212.189.66 jp "ASAHI KASEI CORPORATION" 1214 83.24.78.221 pl "TPNET" 3204 6 0x00 1 00:80:48:b3:22:c4_00:d0:02:6d:78:00_32 COMPEXINC,US_DITECHCOR,US 1214 kazaa 32 33 1275 1975 0 101 39.84375 31.50902 0 4.546829 0.7509208 0.8038685 1.331698 53.05985 -0.01538462 -0.2153846 0x0811 31 789 128 128 0 0x00 0x1840 0 0x00_0x00000000 0_0 0x00000000_0x00000000 1389674681 32 1174 0 32 1861 0 101 63937 64119.21 63645 64240 10 1 4 0 0x0058 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 0.003298 4.381874 0.4854233 0.7526243 0.8374811 0.8654694 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
A 1051 0x0400000200004001 1022171701.880886000 1022171726.605036000 24.724150000 1 3 eth:ipv4:icmp 00:d0:02:6d:78:00 00:04:75:73:9b:a2 0x0800 19.6.23.127 us "MAINT-APNIC-AP" 0 138.212.191.240 jp "ASAHI KASEI CORPORATION" 0 1 0x00 1 00:d0:02:6d:78:00_00:04:75:73:9b:a2_88 DITECHCOR,US_3com,US 0 unknown 88 0 2464 0 28 28 28 2.98481 0 0.489347 0.2809563 0.1034217 3.559273 99.65965 -1 1 0x0001 9 46 116 116 0 0x00 0x1800 0 0x00_0x00000000 0_0 0x00000000_0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x0000 0x0000 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 65535 0 0 0 0 0 0x00 0x01 88 0x00000000_0x00000008_0x0008 0x00000000 0 1051 0x00 0 0 0
A 1165 0x0400000200004000 1022171701.947098000 1022171726.635380000 24.688282000 1 3 eth:ipv4:tcp 00:d0:02:6d:78:00 00:80:48:b3:22:c4 0x0800 133.151.116.195 jp "Brother Industries" 1857 138.212.189.66 jp "ASAHI KASEI CORPORATION" 1214 6 0x00 1 00:d0:02:6d:78:00_00:80:48:b3:22:c4_11 DITECHCOR,US_COMPEXINC,US 1214 kazaa 11 12 3384 1534 0 1460 307.6364 557.4133 0 6.342256 2.244389 2.19089 0.4455555 137.0691 -0.04347826 0.3761692 0x0811 1 261 121 121 0 0x00 0x1840 0 0x00_0x00000000 0_0 0x00000000_0x00000000 4188389891 10 3384 0 11 1222 0 1460 16943 17241.4 16202 17520 7 1 4 0 0x0018 0x0040 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 2.8032e-05 3.717183 0.4699067 1.33743 0 0 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0
B 1165 0x0400000200004001 1022171701.947591000 1022171726.635505000 24.687914000 1 3 eth:ipv4:tcp 00:80:48:b3:22:c4 00:d0:02:6d:78:00 0x0800 138.212.189.66 jp "ASAHI KASEI CORPORATION" 1214 133.151.116.195 jp "Brother Industries" 1857 6 0x00 1 00:80:48:b3:22:c4_00:d0:02:6d:78:00_12 COMPEXINC,US_DITECHCOR,US 1214 kazaa 12 11 1534 3384 0 271 127.8333 111.9265 0 3.71669 2.057326 1.41717 0.4860678 62.13567 0.04347826 -0.3761692 0x0811 50 723 128 128 0 0x00 0x1840 0 0x00_0x00000000 0_0 0x00000000_0x00000000 1092976442 11 1222 0 12 3384 0 328 64240 63558.79 63053 64240 2 1 2 0 0x0018 0x0040 0 0 0x00000000 0 1 0x0000 0x00 0 0x00 0 0 0 0.000000 0.000000000 0 0.08887299 2.625073 1.73182 1.165039 2.201727 1.773707 0x03 0x00 0 0x00000000_0x00000000_0x0000 0x00000000 0 0 0x00 0 0 0Unfortunately there is no content in the pcap, otherwise you could see the content of the packet listing the ICMP packets going back to the sender.
If you looked closely at flowStat in the end report or the snap length warning:
[WRN] snapL2Length: 54 - snapL3Length: 40 - IP length in header: 1500
From the L3 header 40 bytes are left.
Decode the flowStat column:
tawk -V flowStat=0x0400000200004000
The flowStat column with value 0x0400000200004000 is to be interpreted as follows: bit | flowStat | Description ============================================================================= 14 | 0x0000 0000 0000 4000 | IPv4 flow 33 | 0x0000 0002 0000 0000 | Acquired packet length < packet length in L3 header 58 | 0x0400 0000 0000 0000 | IPv4 packet
So we do not see any L7 content in the packet file, because it got snapped.
Why would somebody do that? Right, anonymization…
Wireshark like follow stream
In this section, we will analyze faf-exercise.pcap again.
We will see how we can use tawk follow_stream() function to reconstruct the payload of a given flow
(akin to Wireshark Follow TCP Stream and Follow UDP Stream functionality).
Let’s see how it can be used:
t2 -s -r ~/data/faf-exercise.pcap -w ~/results================================================================================ Tranalyzer 0.9.1 (Anteater), Cobra. PID: 19263, SID: 666 ================================================================================ [INF] Creating flows for L2, IPv4, IPv6 Active plugins: 01: basicFlow, 0.9.1 02: macRecorder, 0.9.1 03: portClassifier, 0.9.1 04: basicStats, 0.9.1 05: tcpFlags, 0.9.1 06: tcpStates, 0.9.1 07: icmpDecode, 0.9.1 08: ftpDecode, 0.9.1 09: txtSink, 0.9.1 [INF] IPv4 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 481577 (481.58 K) [INF] IPv6 Ver: 5, Rev: 09082023, Range Mode: 0, subnet ranges loaded: 41488 (41.49 K) [INF] macRecorder: 84110 (84.11 K) short org name records loaded Processing file: /home/user/data/faf-exercise.pcap Link layer type: Ethernet [EN10MB/1] ...tawk -d follow_stream
follow_stream(f, of, d, pf, r, nc):
Return the payload of flow with index 'f'.
Parameters:
- f: flow index to follow.
- [of]: output format [default: 0]:
0: Payload only,
1: Prefix each payload with packet/flow info,
2: JSON,
3: Reconstruct (pipe the output to 'xxd -p -r' to reproduce the binary file).
- [d]: direction to follow ("A" or "B") [default: "" (A and B)]
- [pf]: payload format [default: 0]:
0: ASCII,
1: Hexdump,
2: Raw/Binary,
3: Base64.
- [r]: do not analyze TCP sequence numbers (no TCP reassembly and reordering) [default: 0]
- [nc]: do not output colors [default: 0]
Dependencies:
- basicFlow
- basicStats
- tcpFlags
Examples:
# follow stream 1 with payload as ASCII.
$ tawk 'follow_stream(1)' file.txt
# follow stream 2 with packet/flow info and payload as ASCII.
$ tawk 'follow_stream(2, 1)' file.txt
# follow stream 3 with packet/flow info as JSON and payload as ASCII.
$ tawk 'follow_stream(3, 2)' file.txt
# follow stream 4, direction B only, without packet/flow info and
# reconstruct payload (original raw data) as binary into 'out.data'.
$ tawk 'tawk 'follow_stream(4, 3, "B")' file.txt | xxd -p -r > out.data
# follow stream 5, direction A only, without packet/flow info and payload as hexdump
$ tawk 'follow_stream(5, 0, "A", 1)' file.txt
# follow stream 6, both directions as JSON and payload as base64.
$ tawk 'follow_stream(6, 2, "", 3)' file.txt
# follow stream 7, both directions with packet/flow info and payload as binary.
$ tawk 'follow_stream(7, 1, "AB", 2)' file.txt
# follow stream 8 with payload as ASCII, without packet/flow info, with TCP
# sequence number analysis and without colors, and redirect output to 'out.txt'.
$ tawk 'follow_stream(8, 0, "", 0, 0, 1)' file.txt > out.txt
# follow stream 9 with payload as hexdump, with packet/flow info,
# but without TCP sequence numbers analysis and colors.
$ tawk 'follow_stream(9, 1, "", 1, 1, 1)' file.txt
Let’s follow stream number 1:
tawk 'follow_stream(1)' ~/results/faf-exercise_packets.txtGET /softw/90/update/avg9infoavi.ctf HTTP/1.1 User-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA= Host: backup.avg.cz Accept: */* Accept-Encoding: identity,deflate,gzip If-Modified-Since: Tue, 17 Nov 2009 20:41:10 GMT Pragma: no-cache Cache-Control: no-cache x-avg-id:78-175947826 HTTP/1.1 200 OK Date: Wed, 18 Nov 2009 11:39:48 GMT Server: Apache Last-Modified: Wed, 18 Nov 2009 09:04:15 GMT ETag: "15c007-cea-478a186e401c0" Accept-Ranges: bytes Content-Length: 3306 Connection: close Content-Type: text/plain AVG CTF Index File;ver(10) bin(u7avi1777ff.bin)grp(avi:1777)tm(0911180855)pri(2)len(6637487) bin(u7avi1777u1323ff.bin)grp(avi:1777)dep(avi:1323)tm(0911180855)pri(2)len(590030) bin(u7avi1777u1705ff.bin)grp(avi:1777)dep(avi:1705)tm(0911180855)pri(2)len(95323) bin(u7iavi2511ff.bin)grp(iavi:2511)tm(0911180855)pri(2)len(45641416) bin(u7iavi2511u2251fo.bin)grp(iavi:2511)dep(iavi:2251)tm(0911180855)pri(2)len(6175342) bin(u7iavi2511u2353fn.bin)grp(iavi:2511)dep(iavi:2353)tm(0911180855)pri(2)len(4506824) bin(u7iavi2511u2404fm.bin)grp(iavi:2511)dep(iavi:2404)tm(0911180855)pri(2)len(3342546) bin(u7iavi2511u2431fl.bin)grp(iavi:2511)dep(iavi:2431)tm(0911180855)pri(2)len(2609643) bin(u7iavi2511u2458fk.bin)grp(iavi:2511)dep(iavi:2458)tm(0911180855)pri(2)len(1380674) bin(u7iavi2511u2480fj.bin)grp(iavi:2511)dep(iavi:2480)tm(0911180855)pri(2)len(681743) bin(u7iavi2511u2490fi.bin)grp(iavi:2511)dep(iavi:2490)tm(0911180855)pri(2)len(555496) bin(u7iavi2511u2500fh.bin)grp(iavi:2511)dep(iavi:2500)tm(0911180855)pri(2)len(332906) bin(u7iavi2511u2505fh.bin)grp(iavi:2511)dep(iavi:2505)tm(0911180855)pri(2)len(204942) bin(u7iavi2511u2508fg.bin)grp(iavi:2511)dep(iavi:2508)tm(0911180855)pri(2)len(72274) bin(u7iavi2511u2510ff.bin)grp(iavi:2511)dep(iavi:2510)tm(0911180855)pri(2)len(30540) bin(u9ichjw4qt.bin)grp(ichjw:4)pri(2)tm(0907131859)len(113488) bin(u9ichjw4u2ia.bin)grp(ichjw:4)dep(ichjw:2)pri(2)tm(0907131859)len(94470) bin(u9ichjw4u3gq.bin)grp(ichjw:4)dep(ichjw:3)pri(2)tm(0907131859)len(13313) bin(u9idat249b243tc.bin)grp(idat:249)dif(idat:243)pri(2)tm(0911051401)len(621430) bin(u9idat249b245bp.bin)grp(idat:249)dif(idat:245)pri(2)tm(0911051401)len(197648) bin(u9idat249b246mj.bin)grp(idat:249)dif(idat:246)pri(2)tm(0911051400)len(159289) bin(u9idat249b247uh.bin)grp(idat:249)dif(idat:247)pri(2)tm(0911051400)len(95680) bin(u9idat249le.bin)grp(idat:249)pri(2)tm(0911051400)len(1927074) bin(u9ifw42jx.bin)grp(ifw:42)pri(2)tm(0911131400)len(541853) bin(u9ifw42u38we.bin)grp(ifw:42)dep(ifw:38)pri(2)tm(0911131400)len(123575) bin(u9ifw42u39ke.bin)grp(ifw:42)dep(ifw:39)pri(2)tm(0911131400)len(92745) bin(u9ifw42u40dc.bin)grp(ifw:42)dep(ifw:40)pri(2)tm(0911131400)len(67292) bin(u9ifw42u41tz.bin)grp(ifw:42)dep(ifw:41)pri(2)tm(0911131400)len(18393) bin(x8all234yc.bin)grp(xplph:0012;xplsb:0099;xplsb2:0118;xplsc:0149)tm(0911180700)pri(2)len(1146352) bin(x8xplph_12gj.bin)grp(xplph:12)tm(0910280700)pri(2)len(4551) bin(x8xplsb2_118c8.bin)grp(xplsb2:118)tm(0911180700)pri(2)len(4989) bin(x8xplsb_9946.bin)grp(xplsb:99)tm(0911160700)pri(2)len(985460) bin(x8xplsb_99d9546.bin)grp(xplsb:99)dif(xplsb:95)tm(0911160700)pri(2)len(32267) bin(x8xplsb_99d9646.bin)grp(xplsb:99)dif(xplsb:96)tm(0911160700)pri(2)len(3505) bin(x8xplsb_99d9746.bin)grp(xplsb:99)dif(xplsb:97)tm(0911160700)pri(2)len(644) bin(x8xplsb_99d9846.bin)grp(xplsb:99)dif(xplsb:98)tm(0911160700)pri(2)len(581) bin(x8xplsc_149c8.bin)grp(xplsc:149)tm(0911180700)pri(2)len(151922) bin(x8xplsc_149d145c8.bin)grp(xplsc:149)dif(xplsc:145)tm(0911180700)pri(2)len(2561) bin(x8xplsc_149d146c8.bin)grp(xplsc:149)dif(xplsc:146)tm(0911180700)pri(2)len(1921) bin(x8xplsc_149d147c8.bin)grp(xplsc:149)dif(xplsc:147)tm(0911180700)pri(2)len(1767) bin(x8xplsc_149d148c8.bin)grp(xplsc:149)dif(xplsc:148)tm(0911180700)pri(2)len(1411)
If you want to know which data belongs to which packet, you can use the following command instead:
tawk 'follow_stream(1, 1)' ~/results/faf-exercise_packets.txt================================================================================ Packet 4 (367 bytes): flow 1 A 192.168.1.104:1258 -> 77.67.44.206:80 TCP seq: 3579665154 ================================================================================ GET /softw/90/update/avg9infoavi.ctf HTTP/1.1 User-Agent: AVGINET9-WXPPX86 90 AVI=270.14.71/2510 BUILD=707 LOC=1033 LIC=9I-ASXNN-X4WGW-M0XFR-T84VX-3VX02 DIAG=51E OPF=0 PCA= Host: backup.avg.cz Accept: */* Accept-Encoding: identity,deflate,gzip If-Modified-Since: Tue, 17 Nov 2009 20:41:10 GMT Pragma: no-cache Cache-Control: no-cache x-avg-id:78-175947826 ================================================================================ Packet 5 (1380 bytes): flow 1 B 77.67.44.206:80 -> 192.168.1.104:1258 TCP seq: 83075340 ================================================================================ HTTP/1.1 200 OK Date: Wed, 18 Nov 2009 11:39:48 GMT Server: Apache Last-Modified: Wed, 18 Nov 2009 09:04:15 GMT ETag: "15c007-cea-478a186e401c0" Accept-Ranges: bytes Content-Length: 3306 Connection: close Content-Type: text/plain AVG CTF Index File;ver(10) bin(u7avi1777ff.bin)grp(avi:1777)tm(0911180855)pri(2)len(6637487) bin(u7avi1777u1323ff.bin)grp(avi:1777)dep(avi:1323)tm(0911180855)pri(2)len(590030) bin(u7avi1777u1705ff.bin)grp(avi:1777)dep(avi:1705)tm(0911180855)pri(2)len(95323) bin(u7iavi2511ff.bin)grp(iavi:2511)tm(0911180855)pri(2)len(45641416) bin(u7iavi2511u2251fo.bin)grp(iavi:2511)dep(iavi:2251)tm(0911180855)pri(2)len(6175342) bin(u7iavi2511u2353fn.bin)grp(iavi:2511)dep(iavi:2353)tm(0911180855)pri(2)len(4506824) bin(u7iavi2511u2404fm.bin)grp(iavi:2511)dep(iavi:2404)tm(0911180855)pri(2)len(3342546) bin(u7iavi2511u2431fl.bin)grp(iavi:2511)dep(iavi:2431)tm(0911180855)pri(2)len(2609643) bin(u7iavi2511u2458fk.bin)grp(iavi:2511)dep(iavi:2458)tm(0911180855)pri(2)len(1380674) bin(u7iavi2511u2480fj.bin)grp(iavi:2511)dep(iavi:2480)tm(0911180855)pri(2)len(681743) bin(u7iavi2511u2490fi.bin)grp(iavi:2511)dep(iavi:2490)tm(0911180855)pri(2)len(555496) bin(u7iavi2511u2500fh.bin)grp(iavi:2511)dep(iavi:2500)tm(0911180855)pri(2)len(332906) bin(u7iavi2511u2505fh.bin)grp(iavi:2511)dep(iavi:2505)tm(0911180855)pri(2)len(204942) bin(u7iavi2511u2508 ================================================================================ Packet 6 (321 bytes): flow 1 B 77.67.44.206:80 -> 192.168.1.104:1258 TCP seq: 83076720 ================================================================================ fg.bin)grp(iavi:2511)dep(iavi:2508)tm(0911180855)pri(2)len(72274) bin(u7iavi2511u2510ff.bin)grp(iavi:2511)dep(iavi:2510)tm(0911180855)pri(2)len(30540) bin(u9ichjw4qt.bin)grp(ichjw:4)pri(2)tm(0907131859)len(113488) bin(u9ichjw4u2ia.bin)grp(ichjw:4)dep(ichjw:2)pri(2)tm(0907131859)len(94470) bin(u9ichjw4u3gq.bin)grp(ic ================================================================================ Packet 8 (1380 bytes): flow 1 B 77.67.44.206:80 -> 192.168.1.104:1258 TCP seq: 83077041 ================================================================================ hjw:4)dep(ichjw:3)pri(2)tm(0907131859)len(13313) bin(u9idat249b243tc.bin)grp(idat:249)dif(idat:243)pri(2)tm(0911051401)len(621430) bin(u9idat249b245bp.bin)grp(idat:249)dif(idat:245)pri(2)tm(0911051401)len(197648) bin(u9idat249b246mj.bin)grp(idat:249)dif(idat:246)pri(2)tm(0911051400)len(159289) bin(u9idat249b247uh.bin)grp(idat:249)dif(idat:247)pri(2)tm(0911051400)len(95680) bin(u9idat249le.bin)grp(idat:249)pri(2)tm(0911051400)len(1927074) bin(u9ifw42jx.bin)grp(ifw:42)pri(2)tm(0911131400)len(541853) bin(u9ifw42u38we.bin)grp(ifw:42)dep(ifw:38)pri(2)tm(0911131400)len(123575) bin(u9ifw42u39ke.bin)grp(ifw:42)dep(ifw:39)pri(2)tm(0911131400)len(92745) bin(u9ifw42u40dc.bin)grp(ifw:42)dep(ifw:40)pri(2)tm(0911131400)len(67292) bin(u9ifw42u41tz.bin)grp(ifw:42)dep(ifw:41)pri(2)tm(0911131400)len(18393) bin(x8all234yc.bin)grp(xplph:0012;xplsb:0099;xplsb2:0118;xplsc:0149)tm(0911180700)pri(2)len(1146352) bin(x8xplph_12gj.bin)grp(xplph:12)tm(0910280700)pri(2)len(4551) bin(x8xplsb2_118c8.bin)grp(xplsb2:118)tm(0911180700)pri(2)len(4989) bin(x8xplsb_9946.bin)grp(xplsb:99)tm(0911160700)pri(2)len(985460) bin(x8xplsb_99d9546.bin)grp(xplsb:99)dif(xplsb:95)tm(0911160700)pri(2)len(32267) bin(x8xplsb_99d9646.bin)grp(xplsb:99)dif(xplsb:96)tm(0911160700)pri(2)len(3505) bin(x8xplsb_99d9746.bin)grp(xplsb:99)dif(xplsb:97)tm(0911160700)pri(2)len(644) bin(x8xplsb_99d9846.bin ================================================================================ Packet 9 (466 bytes): flow 1 B 77.67.44.206:80 -> 192.168.1.104:1258 TCP seq: 83078421 ================================================================================ )grp(xplsb:99)dif(xplsb:98)tm(0911160700)pri(2)len(581) bin(x8xplsc_149c8.bin)grp(xplsc:149)tm(0911180700)pri(2)len(151922) bin(x8xplsc_149d145c8.bin)grp(xplsc:149)dif(xplsc:145)tm(0911180700)pri(2)len(2561) bin(x8xplsc_149d146c8.bin)grp(xplsc:149)dif(xplsc:146)tm(0911180700)pri(2)len(1921) bin(x8xplsc_149d147c8.bin)grp(xplsc:149)dif(xplsc:147)tm(0911180700)pri(2)len(1767) bin(x8xplsc_149d148c8.bin)grp(xplsc:149)dif(xplsc:148)tm(0911180700)pri(2)len(1411) ================================================================================ 1 client packets, 4 server packets, 1 turns.
If you want the output as hex?! Easy, let’s configure the core to output the packet content as hex (SPKTMD_PCNTH=1).
Note that to improve the execution time, we could also switch the ASCII output off (SPKTMD_PCNTC=0).
t2conf tranalyzer2 -D SPKTMD_PCNTH=1 && t2build tranalyzer2
t2 -r ~/data/faf-exercise.pcap -w ~/results/ -s
Let’s analyze flow 35 for a change and discard the packet info:
tawk 'follow_stream(35, 0, "", 1)' ~/results/faf-exercise_packets.txt
00000000 32 32 30 20 4d 69 63 72 6f 73 6f 66 74 20 46 54 220 Micr osoft FT
00000010 50 20 53 65 72 76 69 63 65 0d 0a P Servic e..
00000000 55 53 45 52 20 61 6e 6f 6e 79 6d 6f 75 73 0d 0a USER ano nymous..
0000001B 33 33 31 20 41 6e 6f 6e 79 6d 6f 75 73 20 61 63 331 Anon ymous ac
0000002B 63 65 73 73 20 61 6c 6c 6f 77 65 64 2c 20 73 65 cess all owed, se
0000003B 6e 64 20 69 64 65 6e 74 69 74 79 20 28 65 2d 6d nd ident ity (e-m
0000004B 61 69 6c 20 6e 61 6d 65 29 20 61 73 20 70 61 73 ail name ) as pas
0000005B 73 77 6f 72 64 2e 0d 0a sword...
00000010 50 41 53 53 20 49 45 55 73 65 72 40 0d 0a PASS IEU ser@..
00000063 32 33 30 2d 57 65 6c 63 6f 6d 65 20 74 6f 20 74 230-Welc ome to t
00000073 68 65 20 44 65 6c 6c 20 46 54 50 20 73 69 74 65 he Dell FTP site
00000083 2e 20 41 20 73 65 72 76 69 63 65 20 6f 66 20 44 . A serv ice of D
00000093 65 6c 6c 20 49 6e 63 2e 2c 20 52 6f 75 6e 64 20 ell Inc. , Round
000000A3 52 6f 63 6b 2c 20 54 65 78 61 73 2e 0d 0a 20 20 Rock, Te xas...
000000B3 20 20 46 6f 72 20 69 6e 66 6f 72 6d 61 74 69 6f For in formatio
000000C3 6e 20 61 62 6f 75 74 20 44 45 4c 4c 2c 20 63 61 n about DELL, ca
000000D3 6c 6c 20 2b 31 20 38 30 30 20 39 39 39 20 33 33 ll +1 80 0 999 33
000000E3 35 35 20 41 6c 6c 20 74 72 61 6e 73 66 65 72 73 55 All t ransfers
000000F3 20 61 72 65 20 6c 6f 67 67 65 64 20 77 69 74 68 are log ged with
00000103 0d 0a 20 20 20 20 79 6f 75 72 20 68 6f 73 74 20 .. yo ur host
00000113 6e 61 6d 65 20 61 6e 64 20 65 6d 61 69 6c 20 61 name and email a
00000123 64 64 72 65 73 73 2e 20 49 66 20 79 6f 75 20 64 ddress. If you d
00000133 6f 6e 27 74 20 6c 69 6b 65 20 74 68 69 73 20 70 on't lik e this p
00000143 6f 6c 69 63 79 20 70 6c 65 61 73 65 20 64 69 73 olicy pl ease dis
00000153 63 6f 6e 6e 65 63 74 20 6e 6f 77 2e 0d 0a 20 20 connect now...
00000163 20 20 50 6c 65 61 73 65 20 62 65 20 61 64 76 69 Please be advi
00000173 73 65 64 20 74 68 61 74 20 75 73 65 20 63 6f 6e sed that use con
00000183 73 74 69 74 75 74 65 73 20 63 6f 6e 73 65 6e 74 stitutes consent
00000193 20 74 6f 20 6d 6f 6e 69 74 6f 72 69 6e 67 20 28 to moni toring (
000001A3 45 6c 65 63 20 43 6f 6d 6d 20 50 72 69 76 20 41 Elec Com m Priv A
000001B3 63 74 2c 0d 0a 20 20 20 20 31 38 20 55 53 43 20 ct,.. 18 USC
000001C3 32 37 30 31 2d 32 37 31 31 29 2e 20 50 6c 65 61 2701-271 1). Plea
000001D3 73 65 20 73 65 65 20 74 68 65 20 66 69 6c 65 20 se see t he file
000001E3 72 65 61 64 6d 65 2e 74 78 74 20 66 6f 72 20 64 readme.t xt for d
000001F3 69 73 63 6c 61 69 6d 65 72 73 20 70 65 72 74 61 isclaime rs perta
00000203 69 6e 69 6e 67 20 74 6f 20 74 68 69 73 0d 0a 20 ining to this..
00000213 20 20 20 73 65 72 76 69 63 65 2e 20 49 66 20 79 servi ce. If y
00000223 6f 75 72 20 46 54 50 20 63 6c 69 65 6e 74 20 63 our FTP client c
00000233 72 61 73 68 65 73 20 6f 72 20 68 61 6e 67 73 20 rashes o r hangs
00000243 73 68 6f 72 74 6c 79 20 61 66 74 65 72 20 6c 6f shortly after lo
00000253 67 69 6e 2c 20 74 72 79 20 75 73 69 6e 67 20 61 gin, try using a
00000263 20 64 61 73 68 0d 0a 20 20 20 20 28 2d 29 20 61 dash.. (-) a
00000273 73 20 74 68 65 20 66 69 72 73 74 20 63 68 61 72 s the fi rst char
00000283 61 63 74 65 72 20 6f 66 20 79 6f 75 72 20 70 61 acter of your pa
00000293 73 73 77 6f 72 64 2e 20 54 68 69 73 20 77 69 6c ssword. This wil
000002A3 6c 20 74 75 72 6e 20 6f 66 66 20 74 68 65 20 69 l turn o ff the i
000002B3 6e 66 6f 72 6d 61 74 69 6f 6e 61 6c 0d 0a 20 20 nformati onal..
000002C3 20 20 6d 65 73 73 61 67 65 73 20 77 68 69 63 68 messag es which
000002D3 20 6d 61 79 20 62 65 20 63 6f 6e 66 75 73 69 6e may be confusin
000002E3 67 20 79 6f 75 72 20 66 74 70 20 63 6c 69 65 6e g your f tp clien
000002F3 74 2e 0d 0a 20 20 20 20 2a 2a 2a 2a 2a 2a 2a 2a t... ********
00000303 49 4e 20 43 41 53 45 20 4f 46 20 50 52 4f 42 4c IN CASE OF PROBL
00000313 45 4d 53 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a EMS***** ********
00000323 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0d 0a 20 20 ******** ****..
00000333 20 20 2a 2a 20 46 69 6c 65 20 43 6f 6e 74 65 6e ** Fil e Conten
00000343 74 3a 20 73 65 6e 64 20 45 4d 41 49 4c 20 74 6f t: send EMAIL to
00000353 20 64 65 6c 6c 62 62 73 40 64 65 6c 6c 2e 63 6f dellbbs @dell.co
00000363 6d 20 20 20 2a 2a 0d 0a 20 20 20 20 2a 2a 20 46 m **.. ** F
00000373 54 50 20 53 65 72 76 65 72 3a 20 73 65 6e 64 20 TP Serve r: send
00000383 45 4d 41 49 4c 20 74 6f 20 68 6f 73 74 6d 61 73 EMAIL to hostmas
00000393 74 65 72 40 64 65 6c 6c 2e 63 6f 6d 20 20 2a 2a ter@dell .com **
000003A3 0d 0a 20 20 20 20 2a 2a 20 57 57 57 20 53 65 72 .. ** WWW Ser
000003B3 76 65 72 3a 20 73 65 6e 64 20 45 4d 41 49 4c 20 ver: sen d EMAIL
000003C3 74 6f 20 77 65 62 6d 61 73 74 65 72 40 64 65 6c to webma ster@del
000003D3 6c 2e 63 6f 6d 20 20 20 2a 2a 0d 0a 20 20 20 20 l.com **..
000003E3 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ******** ********
000003F3 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ******** ********
00000403 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a ******** ********
00000413 2a 2a 2a 2a 0d 0a ****..
00000419 32 33 30 20 55 73 65 72 20 6c 6f 67 67 65 64 20 230 User logged
00000429 69 6e 2e 0d 0a in...
0000001E 54 59 50 45 20 49 0d 0a TYPE I..
0000042E 32 30 30 20 54 79 70 65 20 73 65 74 20 74 6f 20 200 Type set to
0000043E 49 2e 0d 0a I...
00000026 50 41 53 56 0d 0a PASV..
00000442 32 32 37 20 45 6e 74 65 72 69 6e 67 20 50 61 73 227 Ente ring Pas
00000452 73 69 76 65 20 4d 6f 64 65 20 28 31 34 33 2c 31 sive Mod e (143,1
00000462 36 36 2c 31 31 2c 31 30 2c 32 35 31 2c 37 38 29 66,11,10 ,251,78)
00000472 0d 0a ..
0000002C 53 49 5a 45 20 2f 76 69 64 65 6f 2f 52 37 39 37 SIZE /vi deo/R797
0000003C 33 33 2e 45 58 45 0d 0a 33.EXE..
00000474 32 31 33 20 34 32 35 35 30 35 36 0d 0a 213 4255 056..
00000044 52 45 54 52 20 2f 76 69 64 65 6f 2f 52 37 39 37 RETR /vi deo/R797
00000054 33 33 2e 45 58 45 0d 0a 33.EXE..
00000481 31 32 35 20 44 61 74 61 20 63 6f 6e 6e 65 63 74 125 Data connect
00000491 69 6f 6e 20 61 6c 72 65 61 64 79 20 6f 70 65 6e ion alre ady open
000004A1 3b 20 54 72 61 6e 73 66 65 72 20 73 74 61 72 74 ; Transf er start
000004B1 69 6e 67 2e 0d 0a ing...
000004B7 32 32 36 20 54 72 61 6e 73 66 65 72 20 63 6f 6d 226 Tran sfer com
000004C7 70 6c 65 74 65 2e 0d 0a plete...
Would it not be nice if you could recreate the binary data that was transferred with FTP?
Well, actually you can! And it is dead easy with tawk follow_stream() function!
Let’s do it!
First, we need to find the flow where the data R79733.EXE was transferred…
Remember about FTP passive mode and the ftpCDFindex column?
36 36tawk 'flow(36) && bitsanyset($flowStat, 0x1) { print $numBytesSnt, $tcpFStat, $tcpAnomaly }' ~/results/faf-exercise_flows.txt
numBytesSnt tcpFStat tcpAnomaly 4268858 0x0c51 0x02c4
Ok, so the data was transferred in flow 36, direction B!
But wait… there seems to be a problem…
The number of bytes for flow 36 is 4268858, while the FTP SIZE command reported a size of 4255056 bytes…
Let’s look at the tcpFStat and tcpAnomaly columns for this flow to understand the issue:
The tcpFStat column with value 0x0c51 is to be interpreted as follows: bit | tcpFStat | Description ============================================================================= 0 | 0x0001 | Packet good for inter-distance assessment 4 | 0x0010 | Window state-machine initialized 6 | 0x0040 | Win 0 probe 10 | 0x0400 | Window full 11 | 0x0800 | Window state-machine count up(1)/down(0) The tcpAnomaly column with value 0x02c4 is to be interpreted as follows: bit | tcpAnomaly | Description ============================================================================= 2 | 0x0004 | SEQ Fast retransmission 6 | 0x0040 | Sequence number out-of-order 7 | 0x0080 | Sequence mess, rather spurious Retransmission 9 | 0x0200 | Previous packet not captured
So, it looks like we have duplicate ACK and retransmission packets and some mess with the sequence numbers.
What can we do about it?
We could extract the flow and sort the packets by sequence numbers…
Sounds complicated…
Luckily, there is actually nothing to worry about, as the follow_stream() function automatically takes care of all the nitty-gritty details!
Time to extract the data!
tawk 'follow_stream(36, 3, "B")' ~/results/faf-exercise_packets.txt | xxd -p -r > ~/results/R79733.EXE
du -b ~/results/R79733.EXE4255056 /home/user/results/R79733.EXEfile -b ~/results/R79733.EXE
PE32 executable (GUI) Intel 80386, for MS Windows, 6 sectionsmd5sum ~/results/R79733.EXE
6448b03e6a8709be41e7165979a440da /home/user/results/R79733.EXE
objdump -d ~/results/R79733.EXE
R79733.EXE: file format pei-i386
Disassembly of section .text:
00401000 <.text>:
401000: 55 push %ebp
401001: 8b ec mov %esp,%ebp
401003: 81 ec 58 02 00 00 sub $0x258,%esp
401009: 53 push %ebx
40100a: 56 push %esi
40100b: 57 push %edi
40100c: 68 02 7f 00 00 push $0x7f02
401011: 33 ff xor %edi,%edi
401013: 57 push %edi
401014: ff 15 a8 25 43 00 call *0x4325a8
40101a: 50 push %eax
40101b: ff 15 e4 25 43 00 call *0x4325e4
401021: 57 push %edi
401022: 8b 75 08 mov 0x8(%ebp),%esi
401025: 57 push %edi
401026: 89 45 fc mov %eax,-0x4(%ebp)
401029: 68 84 01 00 00 push $0x184
40102e: 56 push %esi
40102f: ff 15 e0 25 43 00 call *0x4325e0
...As expected, the size of the file matches that reported in the FTP control channel! A Dell graphics control firmware. Is it, or is it Marware? If you enter the MD5 into VirusTotal, you will see.
Conclusion
That is just a very brief demo of what you can do with T2 packet mode!
And yes, ftpDecode is data carving capable if FTP_SAVE is enabled (refer to the FTP tutorial for more details!).
So extracting R79733.EXE would be much faster in that mode. But for non data carving capable plugins,
or if you want to be compatible with Wireshark output, tawk follow_stream function is definitely an option.
Don’t forget to reset t2 configuration for the next tutorials:
t2conf --reset -a && t2build -R
Have fun!