ET RETIRED PowerShell/CustomRAT CnC Traffic

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED PowerShell/CustomRAT CnC Traffic";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/";
    http.header_names;
    content:!"Referer";
    content:"X-Request-ID"; fast_pattern;
    http.request_body;
    content:"type";
    content:"newclient"; distance:0;
    content:"result";
    content:"pwd";
    content:"cuser";
    content:"hostname";
    content:"clientid";
    reference:url,blog.malwarebytes.com/threat-intelligence/2022/05/custom-powershell-rat-targets-germans-seeking-information-about-the-ukraine-crisis/;
    classtype:trojan-activity;
    sid:2036624; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2022_05_18, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;
)