alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED CoolEK Payload Download (6)"; flow:established,to_server; content:"/mypic.dll"; http_uri; nocase; fast_pattern:only; pcre:"/\/(w(?:hite|orld)|step)\/mypic\.dll$/U"; classtype:exploit-kit; sid:2016547; rev:11; metadata:created_at 2013_03_07, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_23;)