alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Phone Scam Landing M2 Jan 20 2017"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<title>Error Hard Drive"; nocase; fast_pattern; content:"background-color|3a 20|#FF0000"; nocase; distance:0; classtype:social-engineering; sid:2023752; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_01_20, deployment Perimeter, confidence High, signature_severity Major, tag Phishing, updated_at 2024_03_05;)