snort signature for new CodeRed varient

From: J Moll (jmoll-lists@my-mbox.com)
Date: 08/05/01


From: J Moll <jmoll-lists@my-mbox.com>
To: incidents@securityfocus.com
Subject: snort signature for new CodeRed varient
Date: Sat, 4 Aug 2001 23:21:11 -0700
Message-Id: <01080423211101.01745@rogue.autoproxy.net>

All:

I'm using this Snort signature to distinguish between the original and recent
varient of CodeRed. I'm sure it can be optimized -- grabbed a bit of the
binary around the text "CodeRedII" in the packet to cut down on false
alarms.. putting it out so folks can log the differences.

alert tcp any any -> any 80 (msg: "CodeRedII Overflow"; flags: A+; content:
"|46309a02 0000e80a 00000043 6f646552 65644949 008b1c24
ff55d866 0bc00f95|"; depth:624;)

Best Regards,
Joe Moll

-- 
Joseph L. Moll, CISSP -- jmoll@autoproxy.com

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