alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Phone Scam Landing (msg.mp3) 2016-08-12"; flow:established,from_server; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<audio autoplay="; content:"<source src="; distance:0; content:"msg.mp3|22|"; fast_pattern; distance:0; content:"audio/mpeg"; distance:0; classtype:social-engineering; sid:2023056; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_08_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Phishing, updated_at 2020_07_27;)