Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Systemdoctor.com/Antivir2008 related Fake Anti-Virus User-Agent (AntivirXP)"; flow:established,to_server; content:"|3b 20|Antivir"; http_user_agent; threshold:type limit, count 1, seconds 60, track by_src; reference:url,www.wiki-security.com/wiki/Parasite/Antivirus2008; classtype:pup-activity; sid:2008549; rev:14; metadata:created_at 2010_07_30, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_14;)