ET EXPLOIT_KIT Underminer EK Resource File Download M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Underminer EK Resource File Download M1";
    flow:established,to_server;
    urilen:21;
    http.method;
    content:"GET";
    http.uri;
    content:"/static/tinyjs.min.js"; fast_pattern;
    http.header;
    content:"/";
    content:".html|0d 0a|"; distance:26; within:7;
    http.referer;
    content:".html"; endswith;
    pcre:"/^[^\r\n]+(?![a-z]{26}|[0-9]{26})[a-z0-9]{26}\.html/i";
    http.accept;
    content:"application/javascript, */*|3b|q=0.8";
    classtype:exploit-kit;
    sid:2026422; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_09_27, deployment Perimeter, confidence High, signature_severity Major, tag Underminer_EK, updated_at 2020_08_25;
)