ET MALWARE Crpx0 Ransomware Payload Inbound M1

Query · suricata

flow:established,to_client;
http.response_body;
content:"_SYSDATA_FILENAME";
content:"_PAYLOAD_ZIP_URL"; fast_pattern;
content:"_SCANNER_ZIP_URL";
target:dest_ip;
Raw source ET MALWARE Crpx0 Ransomware Payload Inbound M1 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Crpx0 Ransomware Payload Inbound M1";
    flow:established,to_client;
    http.response_body;
    content:"_SYSDATA_FILENAME";
    content:"_PAYLOAD_ZIP_URL"; fast_pattern;
    content:"_SCANNER_ZIP_URL";
    classtype:trojan-activity;
    sid:2068507; 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;
)

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