ET MALWARE W32/Ferret DDOS Bot CnC Beacon 2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.user_agent;
content:"Mozilla|20|"; fast_pattern; startswith;
http.request_body;
content:"m"; depth:1;
pcre:"/^(?:ode)?=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})&h(?:wid)?=/R";
Raw source ET MALWARE W32/Ferret DDOS Bot CnC Beacon 2 · 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 W32/Ferret DDOS Bot CnC Beacon 2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"Mozilla|20|"; fast_pattern; startswith;
    http.request_body;
    content:"m"; depth:1;
    pcre:"/^(?:ode)?=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})&h(?:wid)?=/R";
    reference:md5,f582667d5ce743436fb24771eb22a0e8;
    reference:url,www.arbornetworks.com/asert/2013/12/a-business-of-ferrets/;
    classtype:command-and-control;
    sid:2017917; rev:7;
    metadata:attack_target Client_Endpoint, created_at 2014_01_03, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_03_10, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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