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View Code? Open in Web Editor NEWA wireshark/tshark plugin for the JA3 TLS Client Fingerprinting Algorithm
A wireshark/tshark plugin for the JA3 TLS Client Fingerprinting Algorithm
When I try to add the ja3.lua and md5.lua to the Wireshark's plugin folder in my Ubuntu machine I get the following errors :-
Lua: syntax error: /home/ayush/.local/lib/wireshark/plugins/ja3.lua:8: unexpected symbol near '<'
Lua: syntax error: /home/ayush/.local/lib/wireshark/plugins/md5.lua:8: unexpected symbol near '<'
Can someone help me with this issue ?
I am using Ubuntu 20.04.4 LTS
Surprisingly I, didnt got this issue in my Windows machine
Line 131 in 8929a17
Hi, can a license be added for this project? There are a few issues I came across, and I'd like to see if I can contribute with some fixes.
Thanks for plugin, I compared it's output with these JA3 online tools:
and found some discrepancy.
The difference happens because your plugin include some extension types into ja3 fingerprint, but these tools ignore these extensions and not include it into ja3 fingerprint. Both tools showing exactly the same JA3 fingerprint, but it is different from one calculated with this wireshark plugin. For example, it happens for the following extension types:
So, it looks that this plugin exclude GREASE values, but still include some other extension types into JA3 fingerprint. While other tools ignore these extension types.
For example you can compare Android Chrome v49 TLS fingerprint (it works with TLS 1.2).
Any idea which JA3 implementation is more correct?
Hi,
I'm using Wireshark v3.2.1 on Windows and used following PCAP for testing the LUA script:
PCAP: https://www.malware-traffic-analysis.net/2020/01/29/2020-01-29-Qbot-infection-traffic.pcap.zip
Blog: https://unit42.paloaltonetworks.com/tutorial-qakbot-infection/
Display Filter: ip.addr eq 68.1.115.106 and tls.handshake.type eq 11
I used Network Miner Professional to get the JA3 hash: 7dd50e112cd23734a310b90f6f44a7cd
I found this blacklisted JA3 hash on SSLBL by abuse.ch: https://sslbl.abuse.ch/ja3-fingerprints/7dd50e112cd23734a310b90f6f44a7cd/
ja3.lua gives me following JA3 hash: 7c02dbae662670040c7af9bd15fb7e2f
Please check. Thank you!
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