ET MALWARE Amadey CnC Response

Query · suricata

flow:established,to_client;
http.response_body; bsize:<9;
content:"|20 3c|c|3e|"; startswith; fast_pattern;
content:"|3c|d|3e|"; within:4;
pcre:"/^\x20\x3cc\x3e\d?\x3cd\x3e$/";
target:src_ip;
Raw source ET MALWARE Amadey CnC Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Amadey CnC Response";
    flow:established,to_client;
    http.response_body; bsize:<9;
    content:"|20 3c|c|3e|"; startswith; fast_pattern;
    content:"|3c|d|3e|"; within:4;
    pcre:"/^\x20\x3cc\x3e\d?\x3cd\x3e$/";
    reference:url,x.com/Jane_0sint/status/1902465896897040658;
    reference:md5,35d4ace09132aab814e1424c8645533f;
    classtype:command-and-control;
    sid:2060969; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_03_20, deployment Perimeter, malware_family Amadey, confidence Medium, signature_severity Critical, updated_at 2025_03_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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