ET WEB_CLIENT Tech Support Phone Scam Landing M5 Jun 3

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT Tech Support Phone Scam Landing M5 Jun 3";
    flow:from_server,established;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"text/html"; startswith;
    file.data;
    content:"// escape function context"; nocase;
    content:"// necessary to prevent infinite loop"; nocase; distance:0;
    content:"// that kills your browser"; nocase; distance:0; fast_pattern;
    content:"// pressing leave will still leave, but the GET may be fired first anyway"; nocase; distance:0;
    classtype:social-engineering;
    sid:2022854; rev:4;
    metadata:created_at 2016_06_03, confidence High, signature_severity Minor, updated_at 2020_09_01;
)