ET MALWARE Pure Logs Stealer/Fenix Botnet CnC Activity (GET) M1

Query · suricata

flow:established,to_server;
urilen:26;
http.method;
content:"GET";
http.uri;
pcre:"/^(?:\x2f(?:[a-zA-Z0-9]{10})\x2f(?:[a-zA-Z0-9]{10})\x2etxt)$/";
http.user_agent;
content:"WindowsPowerShell/"; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
Raw source ET MALWARE Pure Logs Stealer/Fenix Botnet CnC Activity (GET) M1 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Pure Logs Stealer/Fenix Botnet CnC Activity (GET) M1";
    flow:established,to_server;
    urilen:26;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/^(?:\x2f(?:[a-zA-Z0-9]{10})\x2f(?:[a-zA-Z0-9]{10})\x2etxt)$/";
    http.user_agent;
    content:"WindowsPowerShell/"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,0fa0287db10babb0893ed0573fc34f82;
    classtype:trojan-activity;
    sid:2051704; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_03_20, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag c2, updated_at 2024_03_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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