[33941] in bugtraq
snort rules for ICQ http/https tunnels
daemon@ATHENA.MIT.EDU (Alexander Antipov)
Wed Feb 25 12:15:26 2004
From: "Alexander Antipov" <antipov@SecurityLab.ru>
To: <full-disclosure@lists.netsys.com>
Cc: <bugtraq@securityfocus.com>
Date: Tue, 24 Feb 2004 18:09:55 +0300
Message-ID: <00ea01c3fae8$466c86a0$1864640a@rdis.ru>
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Hi!
From KasperskyLab: 'Bizex' worm attacks ICQ users -
http://www.kaspersky.com/news.html?id=4272424
Rules for snort to deny ICQ via proxy and proxy chains: (more
information can be found here http://securitylab.ru/40960.html):
# icq.rules
# snort rules for ICQ http/https tunnels
# (c)ded by asu4ka 2003.
# v 0.0.0.1
var PR_IP x.x.x.x
var PR_TCP 8080
alert tcp any any -> $PR_IP $PR_TCP (msg: "ICQ HTTPS/HTTP _basic_,
mf!";\
flow: to_server, established; content: "ICQBasic";)
alert tcp any any -> $PR_IP $PR_TCP (msg: "ICQ HTTPS _key_, mf!";\
flow: to_server, established; content: "<key>"; content: "</key>";
nocase;)
alert tcp $PR_IP $PR_TCP -> any any (msg: "ICQ HTTP _aim/http_, mf!";\
flow: from_server,established; content: "AIM/HTTP"; nocase;)
