alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Scam Landing Jul 19 2017"; flow:from_server,established; http.stat_code; content:"200"; file.data; content:"function getSystemInfo"; nocase; distance:0; content:"OnChatTextKeyDown"; nocase; distance:0; fast_pattern; content:"function scrollcheck"; nocase; distance:0; content:"function callconv"; nocase; distance:0; content:"function istyping"; nocase; distance:0; content:"function dochat"; nocase; distance:0; classtype:social-engineering; sid:2024480; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_07_18, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2020_08_10;)