alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Microsoft Tech Support Scam M3 Sept 15 2016"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:".chrome-alert"; nocase; content:"<title>"; nocase; distance:0; content:"Microsoft Official Support"; fast_pattern; nocase; within:40; classtype:social-engineering; sid:2023239; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_09_15, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, updated_at 2024_03_04;)