ET MALWARE Crpx0 Ransomware Payload Inbound M2

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Crpx0 Ransomware Payload Inbound M2";
    flow:established,to_client;
    http.response_body;
    content:"hiddenDir|20 3d 20|appData|20 26 20 22 5c|sys32data|22|"; fast_pattern;
    content:"binDir|20 3d 20|hiddenDir|20 26 20 22 5c|bin|22|";
    classtype:trojan-activity;
    sid:2068508; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2026_04_01, deployment Perimeter, malware_family Crpx0, confidence High, signature_severity Major, updated_at 2026_04_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer;
    target:dest_ip;
)