ET MALWARE DoS.Linux/Elknot.G Checkin

Query · suricata

flow:established,to_server;
dsize:401;
content:!"|00 00|"; depth:2;
content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|Linux|20|"; offset:2; depth:21; fast_pattern;
pcre:"/^\d/R";
Raw source ET MALWARE DoS.Linux/Elknot.G 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 DoS.Linux/Elknot.G Checkin";
    flow:established,to_server;
    dsize:401;
    content:!"|00 00|"; depth:2;
    content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|Linux|20|"; offset:2; depth:21; fast_pattern;
    pcre:"/^\d/R";
    reference:md5,917a2a3d8c30282acbe7b1ff121a4336;
    classtype:command-and-control;
    sid:2018808; rev:2;
    metadata:created_at 2014_07_30, confidence High, signature_severity Major, updated_at 2022_03_17, reviewed_at 2024_03_15;
)

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