ET MALWARE Downadup/Conficker A or B Worm reporting

Query · suricata

flow:to_server,established;
http.uri;
content:"/search?q=";
pcre:"/^[0-9]{1,3}(?:&aq=7(?:\?[0-9a-f]{8})?)?$/";
http.host;
pcre:"/^(?:\d{1,3}\.){3}\d{1,3}$/";
Raw source ET MALWARE Downadup/Conficker A or B Worm reporting · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Downadup/Conficker A or B Worm reporting";
    flow:to_server,established;
    http.uri;
    content:"/search?q=";
    pcre:"/^[0-9]{1,3}(?:&aq=7(?:\?[0-9a-f]{8})?)?$/";
    http.host;
    pcre:"/^(?:\d{1,3}\.){3}\d{1,3}$/";
    reference:url,www.f-secure.com/weblog/archives/00001584.html;
    classtype:trojan-activity;
    sid:2009024; rev:14;
    metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_04_20;
)

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