ET MALWARE Dyre CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"_W"; fast_pattern;
pcre:"/_W\d+\.[A-F0-9]+\/\d+\/[^\x2f]+\/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\/$/";
http.header_names;
content:!"Accept";
content:!"Referer|0d 0a|";
content:"|0d 0a|User-Agent|0d 0a|"; startswith;
Raw source ET MALWARE Dyre CnC 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Dyre CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"_W"; fast_pattern;
    pcre:"/_W\d+\.[A-F0-9]+\/\d+\/[^\x2f]+\/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\/$/";
    http.header_names;
    content:!"Accept";
    content:!"Referer|0d 0a|";
    content:"|0d 0a|User-Agent|0d 0a|"; startswith;
    reference:md5,3e215dfa84c271bb431b3de2e5da016a;
    classtype:command-and-control;
    sid:2021556; rev:4;
    metadata:created_at 2015_07_31, performance_impact Significant, signature_severity Major, updated_at 2024_04_22;
)

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