ET MALWARE Ave Maria/Warzone RAT Encrypted CnC Checkin

Query · suricata

flow:established,to_server;
content:"|09 12 3b 42|"; depth:4;
content:"|33 a2 44|"; distance:1; within:3;
content:"|01 86 73|"; distance:1; within:3;
threshold:type limit, count 1, seconds 120, track by_src;
Raw source ET MALWARE Ave Maria/Warzone RAT Encrypted CnC Checkin · 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 Ave Maria/Warzone RAT Encrypted CnC Checkin";
    flow:established,to_server;
    content:"|09 12 3b 42|"; depth:4;
    content:"|33 a2 44|"; distance:1; within:3;
    content:"|01 86 73|"; distance:1; within:3;
    threshold:type limit, count 1, seconds 120, track by_src;
    reference:md5,8322266fc84da79419adc44d3acc49c3;
    classtype:command-and-control;
    sid:2036734; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_02_21, deployment Perimeter, malware_family AveMaria, performance_impact Low, confidence High, signature_severity Major, tag RAT, updated_at 2022_03_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1573, mitre_technique_name Encrypted_Channel;
)

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