alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Regnow.com Access"; flow:to_server,established; http.uri; content:"/softsell/visitor.cgi?"; nocase; content:"affiliate="; nocase; reference:url,www.regnow.com; classtype:pup-activity; sid:2001223; rev:11; metadata:created_at 2010_07_30, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_31;)