alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Systemdoctor.com/Antivir2008 related Fake Anti-Virus User-Agent (3P and version num)"; flow:established,to_server; content:"GET "; depth:4; content:"|0d 0a|User-Agent\: "; content:"3P"; pcre:"/User-Agent\:[^\n]+\;\s3P(\s\d|_)/"; classtype:trojan-activity; sid:2008548; rev:1;)

Added 2008-09-13 12:00:22 UTC

Topic revision: r2 - 2009-01-23 - RussellFulton
 
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