ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M1 (Group String Len 1)

Query · suricata

flow:established,to_server;
dsize:5;
content:"|33 66 99 01|"; depth:4;
Raw source ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M1 (Group String Len 1) · 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 ELF/MooBot Mirai DDoS Variant CnC Checkin M1 (Group String Len 1)";
    flow:established,to_server;
    dsize:5;
    content:"|33 66 99 01|"; depth:4;
    reference:md5,0e4c2aa30a72fd75ef49c430fd767fa0;
    reference:url,blog.netlab.360.com/ddos-botnet-moobot-en;
    classtype:command-and-control;
    sid:2030490; rev:1;
    metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2020_07_09, deployment Perimeter, malware_family Mirai, malware_family MooBot, confidence High, signature_severity Major, updated_at 2020_07_09;
)

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