ET MALWARE plain-crypto-js RAT Stage 2 C2 Outbound Request

alert http $HOME_NET any -> any any (
    msg:"ET MALWARE plain-crypto-js RAT Stage 2 C2 Outbound Request";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"mozilla|2f|4|2e|0 |28|compatible|3b| msie 8|2e|0|3b| windows nt 5|2e|1|3b| trident|2f|4|2e|0|29|"; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.request_body;
    base64_decode;
    base64_data;
    content:"|22|type|22 3a|";
    pcre:"/^\s*\x22(?:(?:First|Base)Info|CmdResult)\x22\x3a/R";
    reference:md5,9663665850cdd8fe12e30a671e5c4e6f;
    classtype:trojan-activity;
    sid:2068518; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2026_04_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag c2, updated_at 2026_04_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)