alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Phone Scam Landing Aug 10 M3"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<title>SYSTEM ERROR"; fast_pattern; nocase; content:"getURLParameter"; distance:0; content:"decodeURI"; distance:0; content:"loadNumber"; distance:0; content:"confirmExit"; distance:0; classtype:social-engineering; sid:2023039; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_08_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Phishing, updated_at 2024_03_02;)