alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET WEB_CLIENT Tech Support Phone Scam Landing M1 2016-08-12";
flow:established,from_server;
http.stat_code;
content:"200";
http.content_type;
content:"text/html"; startswith;
file.data;
content:"<title>System Infect"; nocase; fast_pattern;
content:"toggleFullScreen"; distance:0;
content:"countdown"; distance:0;
content:"twoDigits"; distance:0;
classtype:social-engineering;
sid:2023057; rev:3;
metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_08_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Phishing, updated_at 2020_07_27;
)