ET MALWARE TDSS/TDL/Alureon MBR rootkit Checkin

Query · suricata

flow:established,to_server;
urilen:16<>402;
http.method;
content:"GET"; nocase;
http.uri;
pcre:"/^\/[a-z0-9+\/=]{16,400}$/i";
http.user_agent;
content:"Mozilla/4.0|20 28|compatible|3b 20|MSIE"; fast_pattern;
http.header_names;
content:"|0d 0a|Accept-Language|0d 0a|"; depth:19;
content:"Host|0d 0a|"; distance:0;
content:!"Accept";
Raw source ET MALWARE TDSS/TDL/Alureon MBR rootkit Checkin · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE TDSS/TDL/Alureon MBR rootkit Checkin";
    flow:established,to_server;
    urilen:16<>402;
    http.method;
    content:"GET"; nocase;
    http.uri;
    pcre:"/^\/[a-z0-9+\/=]{16,400}$/i";
    http.user_agent;
    content:"Mozilla/4.0|20 28|compatible|3b 20|MSIE"; fast_pattern;
    http.header_names;
    content:"|0d 0a|Accept-Language|0d 0a|"; depth:19;
    content:"Host|0d 0a|"; distance:0;
    content:!"Accept";
    classtype:command-and-control;
    sid:2011894; rev:21;
    metadata:created_at 2010_11_06, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_09;
)

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