ET MALWARE VampireBot CnC Task Request (GET)

Query · suricata

flow:established,to_server;
urilen:46;
http.method;
content:"GET";
http.uri;
content:"/api/task/"; fast_pattern; startswith;
pcre:"/^(?:[a-z0-9]{8})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{12})$/R";
target:src_ip;
Raw source ET MALWARE VampireBot CnC Task Request (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE VampireBot CnC Task Request (GET)";
    flow:established,to_server;
    urilen:46;
    http.method;
    content:"GET";
    http.uri;
    content:"/api/task/"; fast_pattern; startswith;
    pcre:"/^(?:[a-z0-9]{8})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{4})\x2d(?:[a-z0-9]{12})$/R";
    reference:md5,24670706f0a2cb915fcb683ba4cf55a6;
    classtype:command-and-control;
    sid:2064739; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_09_16, deployment Perimeter, deployment SSLDecrypt, malware_family VampireBot, confidence High, signature_severity Critical, tag c2, updated_at 2025_09_17, 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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