ET MALWARE WORM_VOBFUS Checkin 1

Query · suricata

flow:established,to_server;
urilen:5;
http.method;
content:"GET";
http.uri;
content:"/1/?"; startswith;
http.host;
content:".ddns"; fast_pattern;
content:".eu|0d 0a|"; distance:1; within:5;
pcre:"/^\d{5}\x2eddns[a-z0-9]\x2eeu$/";
http.user_agent;
content:"MSIE 7.0|3b|";
Raw source ET MALWARE WORM_VOBFUS Checkin 1 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE WORM_VOBFUS Checkin 1";
    flow:established,to_server;
    urilen:5;
    http.method;
    content:"GET";
    http.uri;
    content:"/1/?"; startswith;
    http.host;
    content:".ddns"; fast_pattern;
    content:".eu|0d 0a|"; distance:1; within:5;
    pcre:"/^\d{5}\x2eddns[a-z0-9]\x2eeu$/";
    http.user_agent;
    content:"MSIE 7.0|3b|";
    reference:md5,f127ed76dc5e48f69a1070f314488ce2;
    reference:url,blog.trendmicro.com/trendlabs-security-intelligence/watch-out-for-worm_vobfus/;
    classtype:command-and-control;
    sid:2015968; rev:9;
    metadata:created_at 2012_11_30, signature_severity Major, updated_at 2020_04_22;
)

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