FATT /fingerprintAllTheThings - a pyshark based script for extracting network metadata and fingerprints from pcap files and live network traffic
License: BSD 3-Clause "New" or "Revised" License
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─$ tshark -v
TShark (Wireshark) 3.0.0 (v3.0.0-0-g937e33de)
─$ python3 fatt.py -i en0 --print_output --json_logging
172.21.155.141:64655 -> 10.110.151.5:443 [TLS] ja3=e70e3fa3254bc795d1d96f17ec5dfb16
10.110.151.5:443 -> 172.21.155.141:64655 [TLS] ja3s=f4febc55ea12b31ae17cfb7e614afda8
Traceback (most recent call last):
File "fatt.py", line 974, in
main()
File "fatt.py", line 968, in main
cap.apply_on_packets(pp.process)
File "/Users/test/.local/share/virtualenvs/fatt-KOlk9kGi/lib/python3.7/site-packages/pyshark/capture/capture.py", line 248, in apply_on_packets
return self.eventloop.run_until_complete(coro)
File "/opt/homebrew/Cellar/python37/3.7.3_2/Frameworks/Python.framework/Versions/3.7/lib/python3.7/asyncio/base_events.py", line 584, in run_until_complete
return future.result()
File "/Users/test/.local/share/virtualenvs/fatt-KOlk9kGi/lib/python3.7/site-packages/pyshark/capture/capture.py", line 259, in packets_from_tshark
await self._go_through_packets_from_fd(tshark_process.stdout, packet_callback, packet_count=packet_count)
File "/Users/test/.local/share/virtualenvs/fatt-KOlk9kGi/lib/python3.7/site-packages/pyshark/capture/capture.py", line 285, in _go_through_packets_from_fd
packet_callback(packet)
File "fatt.py", line 144, in process
record = self.client_ja3(packet)
File "fatt.py", line 475, in client_ja3
"sourceIp": packet.ip.src,
File "/Users/test/.local/share/virtualenvs/fatt-KOlk9kGi/lib/python3.7/site-packages/pyshark/packet/packet.py", line 117, in getattr
raise AttributeError("No attribute named %s" % item)
AttributeError: No attribute named ip
With quic enabled I am getting the following error, strangely it only happens within a VM environment, not on a physical device:
Traceback (most recent call last):
File "fatt.py", line 974, in <module>
main()
File "fatt.py", line 968, in main
cap.apply_on_packets(pp.process)
File "/usr/lib/python3.8/site-packages/pyshark/capture/capture.py", line 248, in apply_on_packets
return self.eventloop.run_until_complete(coro)
File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
return future.result()
File "/usr/lib/python3.8/site-packages/pyshark/capture/capture.py", line 259, in packets_from_tshark
await self._go_through_packets_from_fd(tshark_process.stdout, packet_callback, packet_count=packet_count)
File "/usr/lib/python3.8/site-packages/pyshark/capture/capture.py", line 285, in _go_through_packets_from_fd
packet_callback(packet)
File "fatt.py", line 283, in process
if 'tag' in packet.gquic.field_names:
File "/usr/lib/python3.8/site-packages/pyshark/packet/packet.py", line 117, in __getattr__
raise AttributeError("No attribute named %s" % item)
AttributeError: No attribute named gquic
The following log entry is associated with the error:
{"timestamp": "2021-05-30T13:42:14.236588", "sourceIp": "1.2.3.4", "destinationIp": "172.20.254.143", "sourcePort": "443", "destinationPort": "34076", "protocol": "tls", "tls": {"ja3s": "ad79b260268c688aca351dae7229c877", "ja3sAlgorithms": "771,49200,65281-11-23-16", "ja3sVersion": "771", "ja3sCiphers": "49200", "ja3sExtensions": "65281-11-23-16"}}
Please let me know if I can be of further assistance.
Possible values for encryptionMethods are 0x00000001, 0x00000002, 0x00000008 and 0x00000010. FATT doesn't extract the right values.
https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/6b58e11e-a32b-4903-b736-339f3cfe46ec
How can this script be used for extracting fingerprints for traffic similar to one shown in image, i tried by command in example but does'nt work
python3 fatt.py -i eth0 --print_output --json_logging
config:
Running with an old tshark version and no json loggning:
(fatt-MY6RzNOM) # python3 fatt.py -i eth0 -p
(fatt-MY6RzNOM) #
Running with -j and -p:
# python3 fatt.py -i eth0 -p -j
Traceback (most recent call last):
File "fatt.py", line 974, in <module>
main()
File "fatt.py", line 968, in main
cap.apply_on_packets(pp.process)
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 248, in apply_on_packets
return self.eventloop.run_until_complete(coro)
File "/usr/lib/python3.7/asyncio/base_events.py", line 584, in run_until_complete
return future.result()
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 264, in packets_from_tshark
await self._close_async()
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 407, in _close_async
await self._cleanup_subprocess(process)
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 400, in _cleanup_subprocess
% process.returncode)
pyshark.capture.capture.TSharkCrashException: TShark seems to have crashed (retcode: 1). Try rerunning in debug mode [ capture_obj.set_debug() ] or try updating tshark.
Exception ignored in: <function Capture.__del__ at 0x7f41763f7378>
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 412, in __del__
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 403, in close
File "/usr/lib/python3.7/asyncio/base_events.py", line 584, in run_until_complete
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 407, in _close_async
File "/root/.local/share/virtualenvs/fatt-MY6RzNOM/lib/python3.7/site-packages/pyshark/capture/capture.py", line 400, in _cleanup_subprocess
pyshark.capture.capture.TSharkCrashException: TShark seems to have crashed (retcode: 1). Try rerunning in debug mode [ capture_obj.set_debug() ] or try updating tshark.
(fatt-MY6RzNOM)
#
When i'm enabling debug in capture.py:
(fatt-MY6RzNOM) # python3 fatt.py -i eth0 -p --json_logging
Capturing on 'eth0'
File: -
Running as user "root" and group "root". This could be dangerous.
tshark: Unknown protocol -- "tls"
tshark: Valid protocols for layer type "tcp.port" are:
..8<..
ssl renamed to tls from tshark/wireshark v2.9.0
wireshark/wireshark@cd95e19
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