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Network Security Snort-Signatures
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[Snort-sigs] Akak trojan signatures

from [Joe Stewart] Network Security [Permanent Link]
Subject: [Snort-sigs] Akak trojan signatures
Date: Tue, 31 Aug 2004 10:16:58 -0400 
New trojan being spread via IE drag-n-drop. Not real prevalent right 
now, but in case you want to be on the lookout for it:

alert tcp any any -> any 4321 (msg:"Akak trojan protocol hello"; 
content:"|89 13 00 00|"; dsize:4; flow:established,to_server; 
reference:url,www.lurhq.com/akak.html; classtype:trojan-activity; 
sid:1000120; rev:1;) 

alert tcp $HOME_NET 4321 -> $EXTERNAL_NET any (msg:"Akak trojan protocol 
response from infected host"; content:"|6f 17 00 00|"; dsize:4; 
flow:established,to_client; reference:url,www.lurhq.com/akak.html; 
classtype:trojan-activity; sid:1000121; rev:1;)

-Joe

-- 
Joe Stewart, GCIH 
Senior Security Researcher
LURHQ http://www.lurhq.com/


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