alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Phone Scam Landing 2017-07-26"; flow:established,to_client; file.data; content:"href=|22|./files/alert.css"; nocase; content:"<audio autoplay=|22|autoplay|22 20|loop=|22|"; nocase; fast_pattern; distance:0; content:".mp3|22 20|type=|22|audio/mpeg"; nocase; distance:0; content:"Internet Security Alert"; nocase; distance:0; classtype:social-engineering; sid:2025909; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_07_26, deployment Perimeter, confidence High, signature_severity Minor, tag Tech_Support_Scam, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_14;)