ET RETIRED [ANY.RUN] Remcos RAT Checkin 861

Query · suricata

flow:established,to_server;
content:"|ba 49 b2 3c 5e 7e 69 43 28 63 8e|"; fast_pattern; startswith;
content:"|39 84|"; distance:2; within:2;
target:src_ip;
Raw source ET RETIRED [ANY.RUN] Remcos RAT Checkin 861 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED [ANY.RUN] Remcos RAT Checkin 861";
    flow:established,to_server;
    content:"|ba 49 b2 3c 5e 7e 69 43 28 63 8e|"; fast_pattern; startswith;
    content:"|39 84|"; distance:2; within:2;
    reference:md5,fcee7ed5ecf26ed1d4287e41df99bfbb;
    reference:url,app.any.run/tasks/80e04690-c0c0-4bb7-91d3-5e4fb9d215be;
    classtype:command-and-control;
    sid:2046729; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_07_05, deployment Perimeter, former_category MALWARE, malware_family Remcos, performance_impact Low, confidence High, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:src_ip;
)

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