ET RETIRED W32.Blackshades/Shadesrat Backdoor CnC Beacon

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/gate.php";
http.request_body;
content:"crypt"; depth:5;
content:"="; within:3;
target:src_ip;
Raw source ET RETIRED W32.Blackshades/Shadesrat Backdoor CnC Beacon · 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 RETIRED W32.Blackshades/Shadesrat Backdoor CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/gate.php";
    http.request_body;
    content:"crypt"; depth:5;
    content:"="; within:3;
    reference:md5,9d11cfb7799089823483b72daec5fd2b;
    reference:md5,a01451eae2d47872ce796bb85f116710;
    classtype:command-and-control;
    sid:2018079; rev:4;
    metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2014_02_05, deployment Perimeter, former_category MALWARE, confidence High, signature_severity Major, tag c2, updated_at 2024_12_05, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
    target:src_ip;
)

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