alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE Downloader Possible AV KILLER"; flow:established,to_server; content:"GET"; nocase; http_method; content:"SoftName="; http_uri; nocase; content:"SoftVersion="; http_uri; nocase; content:"UserIP="; http_uri; nocase; content:"Mac="; http_uri; nocase; classtype:trojan-activity; sid:2009487; rev:5; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)