ET MALWARE Win32/Nitol.B Checkin

Query · suricata

flow:from_client,established;
dsize:536<>1029;
content:"|01 00 00 00|"; depth:4;
content:!"|26|"; within:1;
content:"|26|"; distance:1; within:1;
content:"|26|"; distance:61; within:1;
content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:204; within:20;
content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:12; within:20;
Raw source ET MALWARE Win32/Nitol.B 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 Win32/Nitol.B Checkin";
    flow:from_client,established;
    dsize:536<>1029;
    content:"|01 00 00 00|"; depth:4;
    content:!"|26|"; within:1;
    content:"|26|"; distance:1; within:1;
    content:"|26|"; distance:61; within:1;
    content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:204; within:20;
    content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:12; within:20;
    classtype:command-and-control;
    sid:2014601; rev:5;
    metadata:created_at 2012_04_17, malware_family Win32_Nitol_B, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;
)

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