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C2 - Zeus?
From: Paul Bottomley <Paul.Bottomley () betfair com>
Date: Thu, 13 Jun 2013 11:28:05 +0000

Might need running in your test lab for a week or so to see what it picks up... From observation so no reference.

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Zeus outbound connection"; 
flow:established,to_server; content:"/images/"; fast_pattern:only; http_uri; 
pcre:"/\/images\/[a-zA-Z]{1}\.php\?id\=[0-9]{2,}/Ui"; classtype:trojan-activity; sid:xxxxxx; rev:1;)


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