ET MALWARE Worm.Win32.Ngrbot.lof Join IRC channel

Query · suricata

flow:to_server,established;
content:"NICK New|7B|"; nocase;
pcre:"/^\S{2,3}\x2d(XP|2K3|VIS|2K8|W7|ERR)\w?\x2d\w+?\x7D\w+?\r\n?/Ri";
Raw source ET MALWARE Worm.Win32.Ngrbot.lof Join IRC channel · 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 Worm.Win32.Ngrbot.lof Join IRC channel";
    flow:to_server,established;
    content:"NICK New|7B|"; nocase;
    pcre:"/^\S{2,3}\x2d(XP|2K3|VIS|2K8|W7|ERR)\w?\x2d\w+?\x7D\w+?\r\n?/Ri";
    reference:url,microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Worm%3AWin32/Dorkbot.AR;
    reference:md5,dd05fcd2368d8d410a5b85e8d504a435;
    classtype:trojan-activity;
    sid:2016849; rev:3;
    metadata:created_at 2013_05_14, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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