ET MALWARE Possible IRC Bot Common PRIVMSG Commands

Query · suricata

flow:established,to_client;
content:"PRIVMSG "; depth:8;
pcre:"/^[^\r\n]*?(?:p[ao]rt|udp|c?tcp|http|d(?:ie|ownload)|mail|c?back|(?:msg|notice)?flood)/Ri";
Raw source ET MALWARE Possible IRC Bot Common PRIVMSG Commands · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Possible IRC Bot Common PRIVMSG Commands";
    flow:established,to_client;
    content:"PRIVMSG "; depth:8;
    pcre:"/^[^\r\n]*?(?:p[ao]rt|udp|c?tcp|http|d(?:ie|ownload)|mail|c?back|(?:msg|notice)?flood)/Ri";
    classtype:trojan-activity;
    sid:2019486; rev:1;
    metadata:created_at 2014_10_21, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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