ET MALWARE Win32/Gh0stRat C2 Response (X11 SelectionNotify)

Query · suricata

flow:established,to_client;
content:"|1f 00 00 00 31 00 32 00 33 00 34 00 35 00 36 00 00 00|"; startswith; fast_pattern;
content:"|78 9c|"; distance:4; within:2;
Raw source ET MALWARE Win32/Gh0stRat C2 Response (X11 SelectionNotify) · Suricata
Esc
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/Gh0stRat C2 Response (X11 SelectionNotify)";
    flow:established,to_client;
    content:"|1f 00 00 00 31 00 32 00 33 00 34 00 35 00 36 00 00 00|"; startswith; fast_pattern;
    content:"|78 9c|"; distance:4; within:2;
    reference:url,twitter.com/naumovax/status/1703765086014152778;
    classtype:command-and-control;
    sid:2048129; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_20, deployment Perimeter, malware_family Win32_Gh0stRat, confidence High, signature_severity Critical, tag c2, updated_at 2023_09_27, reviewed_at 2023_09_20;
)

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