alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Generic Fake Support Phone Scam Mar 9 M1"; flow:established,from_server; file_data; content:"Callpixels"; fast_pattern; nocase; pcre:"/^\s*?\.\s*?Campaign\s*?\(\s*?\{\s*?campaign_key/Rsi"; content:"<audio"; nocase; pcre:"/^[^\r\n]+autoplay=[\x22\x27]autoplay/Rsi"; content:"TOLL FREE"; nocase; classtype:social-engineering; sid:2022605; rev:3; metadata:created_at 2016_03_09, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_16;)