ET MALWARE Remcos RAT Checkin 23

Query · suricata

flow:established,to_server;
content:"|1b 84 d5 b0 5d f4 c4 93 c5 30 c2|"; depth:11; fast_pattern;
content:"|da b1|"; distance:2; within:2;
threshold:type limit, seconds 30, count 1, track by_src;
Raw source ET MALWARE Remcos RAT Checkin 23 · 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 MALWARE Remcos RAT Checkin 23";
    flow:established,to_server;
    content:"|1b 84 d5 b0 5d f4 c4 93 c5 30 c2|"; depth:11; fast_pattern;
    content:"|da b1|"; distance:2; within:2;
    threshold:type limit, seconds 30, count 1, track by_src;
    reference:md5,f4f2425e9735f92cc9f75711aa8cb210;
    classtype:command-and-control;
    sid:2025637; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_07_03, deployment Perimeter, malware_family Remcos, confidence High, signature_severity Major, tag RAT, updated_at 2020_11_06;
)

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