[Snort-sigs] Kuluoz-ishness

James Lay jlay at ...3266...
Wed Jul 10 13:44:13 EDT 2013


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC 
Win.Trojan.Kuluoz variant outbound connection"; 
flow:to_server,established; content:"|20|HTTP/1.1|0d 0a|User-Agent|3a 
20|"; fast_pattern:only; http_uri; pcre:"/\x2f[A-Z0-9]{88}/U"; 
metadata:policy balanced-ips drop, policy security-ips drop, service 
http; reference:url,http://pastebin.com/raw.php?i=MfwDnAMt; 
classtype:trojan-activity; sid:10000086; rev:1;)

Not sure if I should include that full UA.  Good info on that pastebin 
link.

James




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