ET MALWARE Kimsuky APT Related Win32/RftRAT Activity

Query · suricata

flow:established,to_server;
dsize:580;
content:"|ef a7 3d 96|"; startswith; fast_pattern;
content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; endswith;
target:src_ip;
Raw source ET MALWARE Kimsuky APT Related Win32/RftRAT Activity · 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 Kimsuky APT Related Win32/RftRAT Activity";
    flow:established,to_server;
    dsize:580;
    content:"|ef a7 3d 96|"; startswith; fast_pattern;
    content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; endswith;
    reference:md5,093608a2d6eb098eb7ea917cc22e9998;
    reference:md5,a2b3fbd4da7a46e1b77da04b858ed7af;
    reference:md5,c55da826e50e2615903607e61968778f;
    classtype:trojan-activity;
    sid:2049873; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2024_01_02, deployment Perimeter, malware_family Win32_RftRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_02;
    target:src_ip;
)

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