Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED .dll Request Without User-Agent Likely Malware"; flow:established,to_server; content:".dll"; nocase; http_uri; content:!"User-Agent|3A|"; nocase; http_header; classtype:trojan-activity; sid:2012618; rev:2; metadata:created_at 2011_04_01, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)