alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Microsoft Tech Support Phone Scam Landing 2018-09-12"; flow:established,to_client; file_data; content:"<title>Microsoft Official Support"; nocase; fast_pattern; content:"<strong>VIRUS ALERT FROM MICROSOFT"; nocase; distance:0; content:"<audio autoplay=|22|autoplay|22|"; nocase; distance:0; classtype:social-engineering; sid:2026111; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_09_12, deployment Perimeter, confidence High, signature_severity Minor, tag Tech_Support_Scam, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_16;)