[Snort-sigs] Win32/64 Napolar sig

James Lay jlay at ...3266...
Wed Sep 25 15:30:29 EDT 2013


First attempt...hope it doesn't stink :)

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC 
W32/64.Napolar initial POST"; flow:to_server, established; file_data; 
content:"|26|u=USER_NAME|26|c=COMP_NAME|26|s="; fast_pattern:only; 
metadata:policy balanced-ips drop, policy security-ips drop, service 
http, ruleset community; 
reference:url,blog.avast.com/2013/09/25/win3264napolar-new-trojan-shines-on-the-cyber-crime-scene/; 
classtype:trojan-activity; sid:10000099; rev:1;)

James




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