ET MALWARE Win32/Urausy.C Checkin 3

Query · suricata

flow:to_server,established;
urilen:>80;
http.method;
content:"GET";
http.uri;
content:".php"; endswith;
pcre:"/\/[a-z-_]{75,}\.php$/";
http.user_agent;
content:"Mozilla/5.0 (compatible|3b 20|MSIE|20|"; fast_pattern;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|"; depth:14;
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE Win32/Urausy.C Checkin 3 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Urausy.C Checkin 3";
    flow:to_server,established;
    urilen:>80;
    http.method;
    content:"GET";
    http.uri;
    content:".php"; endswith;
    pcre:"/\/[a-z-_]{75,}\.php$/";
    http.user_agent;
    content:"Mozilla/5.0 (compatible|3b 20|MSIE|20|"; fast_pattern;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|"; depth:14;
    content:!"Referer";
    content:!"Accept";
    reference:md5,09462f13d7e6aaa0bff2788158343829;
    reference:md5,b18f80d665f340af91003226a2b974b6;
    reference:md5,1494b8b9f42753a4bc1762d8f3287db6;
    classtype:command-and-control;
    sid:2016809; rev:9;
    metadata:created_at 2013_05_02, malware_family Win32_Urausy_C, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08;
)

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