ET MALWARE Win32.Nitol.K Variant CnC

Query · suricata

flow:established,to_server;
content:"|0b 00 00 00|"; depth:4;
content:"Windows|20|"; distance:4; within:8;
content:"|00|"; within:5;
content:"|7c b4 ab b2 a5 7c|"; fast_pattern;
Raw source ET MALWARE Win32.Nitol.K Variant CnC · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32.Nitol.K Variant CnC";
    flow:established,to_server;
    content:"|0b 00 00 00|"; depth:4;
    content:"Windows|20|"; distance:4; within:8;
    content:"|00|"; within:5;
    content:"|7c b4 ab b2 a5 7c|"; fast_pattern;
    reference:md5,56bff68317a0af08f749a1c717125cf3;
    classtype:command-and-control;
    sid:2022337; rev:4;
    metadata:created_at 2016_01_07, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_18;
)

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