ET INFO Observed testcookie-nginx-module

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO Observed testcookie-nginx-module";
    flow:established,to_client;
    http.stat_code;
    content:"200"; bsize:3;
    http.server;
    content:"nginx"; depth:5;
    file.data;
    content:"toNumbers";
    content:"d.replace"; distance:30;
    content:"e.push(parseInt"; distance:30;
    content:"toHex"; distance:200;
    content:"e.toLowerCase"; distance:0;
    content:"toNumbers"; distance:20;
    content:"toNumbers"; distance:0;
    content:"toNumbers"; distance:0;
    content:"toHex(slowAES.decrypt"; distance:100;
    content:"<noscript>This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support</noscript>"; fast_pattern; distance:100;
    reference:url,github.com/kyprizel/testcookie-nginx-module;
    classtype:misc-activity;
    sid:2035554; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_21, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_04_28, reviewed_at 2024_10_15;
)