ET MALWARE AMOS Stealer CnC Checkin (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE AMOS Stealer CnC Checkin (POST)";
    flow:established,to_server;
    urilen:8;
    http.method;
    content:"POST";
    http.uri;
    content:"/contact";
    http.user_agent;
    content:"curl"; startswith;
    http.header_names;
    content:"|0d 0a|user|0d 0a|BuildID|0d 0a|cl|0d 0a|cn|0d 0a|"; fast_pattern;
    reference:md5,e6899ff5b47f01113c522ca1e0a405c3;
    classtype:command-and-control;
    sid:2061835; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_04_23, deployment Perimeter, malware_family AMOSStealer, confidence High, signature_severity Critical, tag c2, updated_at 2025_04_23, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)