ET MALWARE Win32/Unknown RAT CnC Server Acknowledgement

Query · suricata

flow:established,to_client;
dsize:9;
content:"|09 00 00 00 01 00 00 00 15|"; fast_pattern;
target:dest_ip;
Raw source ET MALWARE Win32/Unknown RAT CnC Server Acknowledgement · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Win32/Unknown RAT CnC Server Acknowledgement";
    flow:established,to_client;
    dsize:9;
    content:"|09 00 00 00 01 00 00 00 15|"; fast_pattern;
    reference:md5,324877533d7f0c4014e0f046d0c28d39;
    reference:md5,dd43c6237024d7867e5e441871c64402;
    classtype:trojan-activity;
    sid:2049151; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, created_at 2023_11_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_11_10;
    target:dest_ip;
)

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