alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Tech Support Scam Landing 2020-08-19"; flow:established,to_client; file.data; content:"opener.location = gourl|3b|"; content:"onbeforeunload=function()"; distance:0; content:"Press ESC, to close this page!"; distance:0; content:"Scanning... <strong>Folders"; distance:0; fast_pattern; content:"Scanning... <strong>Documents"; distance:0; content:"Scanning... <strong>System Files"; distance:0; classtype:social-engineering; sid:2030704; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_08_19, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;)