ET MALWARE MRCR1 Ransomware Checkin M2

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"|43 50 55 20 4d 6f 64 65 6c 3a|"; fast_pattern;
content:"|43 50 55 20 43 6f 75 6e 74 3a|";
content:"|47 65 74 52 41 4d 3a|";
content:"|5b 53 79 73 74 65 6d 20 50 72 6f 63 65 73 73 5d|";
content:"|5b 50 72 6f 67 72 61 6d 6d 73 5d|";
Raw source ET MALWARE MRCR1 Ransomware Checkin M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MRCR1 Ransomware Checkin M2";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"|43 50 55 20 4d 6f 64 65 6c 3a|"; fast_pattern;
    content:"|43 50 55 20 43 6f 75 6e 74 3a|";
    content:"|47 65 74 52 41 4d 3a|";
    content:"|5b 53 79 73 74 65 6d 20 50 72 6f 63 65 73 73 5d|";
    content:"|5b 50 72 6f 67 72 61 6d 6d 73 5d|";
    reference:md5,fc57a660e24d9c91cb5464b2ece30756;
    reference:md5,a1d83e290429477f05c0eaddafdb0355;
    classtype:command-and-control;
    sid:2023692; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_01_03, deployment Perimeter, malware_family Ransomware, confidence High, signature_severity Major, tag Ransomware, updated_at 2020_08_03, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)

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