ET MALWARE Athena Bot Nick in IRC

Query · suricata

flow:established,to_server;
content:"NICK ";
content:"|5b|"; distance:1; within:1;
pcre:"/^[A-Z]{3}\|[UA]\|[DL]\|W([78]|_XP|VIS)\|x(86|64)\|/R";
Raw source ET MALWARE Athena Bot Nick in IRC · 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 Athena Bot Nick in IRC";
    flow:established,to_server;
    content:"NICK ";
    content:"|5b|"; distance:1; within:1;
    pcre:"/^[A-Z]{3}\|[UA]\|[DL]\|W([78]|_XP|VIS)\|x(86|64)\|/R";
    reference:url,arbornetworks.com/asert/2013/11/athena-a-ddos-malware-odyssey/;
    reference:md5,859c2fec50ba1212dca9f00aa4a64ec4;
    classtype:trojan-activity;
    sid:2017716; rev:3;
    metadata:created_at 2013_11_15, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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