ET MALWARE DDoS.Win32/Nitol.B Checkin

Query · suricata

flow:established,to_server;
dsize:>1000;
content:"|88 88 08 00|"; depth:4; fast_pattern;
content:"|2E|"; distance:1; within:1;
content:"|2F 73|"; distance:2; within:2;
content:"|00 00 00 00 00 00 00 00|"; within:15;
Raw source ET MALWARE DDoS.Win32/Nitol.B Checkin · 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 DDoS.Win32/Nitol.B Checkin";
    flow:established,to_server;
    dsize:>1000;
    content:"|88 88 08 00|"; depth:4; fast_pattern;
    content:"|2E|"; distance:1; within:1;
    content:"|2F 73|"; distance:2; within:2;
    content:"|00 00 00 00 00 00 00 00|"; within:15;
    reference:md5,f078e099b1f8afc7c43eb05b4badf9e7;
    classtype:command-and-control;
    sid:2021111; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2015_05_16, deployment Perimeter, malware_family Nitol_DDoS, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;
)

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