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| Subject: | Re: [Snort-sigs] help with 2 rules |
|---|---|
| Date: | Wed, 02 Mar 2005 16:31:57 -0500 |
I have no idea what this exploit is for??
alert tcp any $HTTP_PORTS -> $HOME_NET any (msg: "BLEEDING-EDGE Exploit ATmaCA PoC for CORE-2004-0819 -- bad PNG"; flow: to_client,established; content: "|8950 4e47 0d0a 1a0a 0000 000d 4948 4452|"; byte_test: 4,>,256,17,relative; content: "tRNS"; distance: 4; classtype:misc-attack; sid:2001723; rev:2;)
It's an MSN messenger exploit based on corrupted PNG files:
http://www.coresecurity.com/common/showdoc.php?idx=421&idxseccion=10
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