ET MALWARE Vundo User-Agent Check-in

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Mozilla/4.0 (compatible|3b 20|MSIE 6.0) WinNT 5.1"; fast_pattern; bsize:44;
Raw source ET MALWARE Vundo User-Agent Check-in · 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 http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Vundo User-Agent Check-in";
    flow:established,to_server;
    http.user_agent;
    content:"Mozilla/4.0 (compatible|3b 20|MSIE 6.0) WinNT 5.1"; fast_pattern; bsize:44;
    reference:url,www.symantec.com/security_response/writeup.jsp?docid=2004-112111-3912-99;
    classtype:trojan-activity;
    sid:2010490; rev:8;
    metadata:created_at 2010_07_30, confidence High, signature_severity Major, updated_at 2020_08_13;
)

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