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Message-ID: <CANWtx030gaE28efZchT33OLb46nE4PKuzbqxggDJzkG5wFyyoA@mail.gmail.com>
Date: Tue, 7 Feb 2012 17:24:44 -0500
From: Rich Rumble <richrumble@...il.com>
To: john-dev@...ts.openwall.com
Subject: VNC Pcap's for cracking
This topic started out on John-Users, about cracking
Challenge-Response hashes of VNC sessions.
As an FYI
Cain&Abel captures VNC packets in the following format:
VNC.LST (protocol = 3.3 | password = pass1234)
TimeStamp, Server, Client, AuthType, 3Des Encrypted, Challenge
07/02/2012 - 15:48:16 192.168.1.50 192.168.1.103 3DES 19272f8f3b8cf67745bcafb5cde52718 ca448a7c00507f7dc6ad69742ab877b1
Cain&Abel only seems to capture the legacy 3.3 protocol, not the newer
3.7 or latest 3.8. I am including Pcaps for each protocol version.
Here are Doc's on each protocol
3.3 http://grox.net/doc/apps/vnc/rfbproto.pdf
3.7 http://web.archive.org/web/20040325204925/http://www.realvnc.com/docs/rfbproto.pdf
3.8 http://www.realvnc.com/docs/rfbproto.pdf
http://tools.ietf.org/rfc/rfc6143.txt
And here is another cracker VNCcrack, which allows
Jtr as input :) john -i -stdout:8 | ./vnccrack dump.pcap
http://www.randombit.net/code/vnccrack/
This program seemed to compile well, but Botan was
newer than expected and I received no error running it,
nonetheless it did not work on these pcap's.
I've placed these various pcaps on my own server in
a single tarball if anyone is interested.
http://xinn.org/jtr-pcap/jtr-vnc-pcap.tar.gz
-rich
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