ET MALWARE W32/Hyteod.Downloader CnC Beacon

Query · suricata

flow:established,to_server;
http.uri;
content:"/payment_gateway/"; startswith;
content:".gz"; endswith;
pcre:"/\/[a-z0-9]{3,}\.gz$/";
http.user_agent;
content:"OperaMini"; depth:9;
Raw source ET MALWARE W32/Hyteod.Downloader 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/Hyteod.Downloader CnC Beacon";
    flow:established,to_server;
    http.uri;
    content:"/payment_gateway/"; startswith;
    content:".gz"; endswith;
    pcre:"/\/[a-z0-9]{3,}\.gz$/";
    http.user_agent;
    content:"OperaMini"; depth:9;
    reference:md5,8258c3d8bab63cacf143cf034e2e7c1a;
    classtype:command-and-control;
    sid:2019824; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2014_12_01, deployment Perimeter, signature_severity Major, tag c2, updated_at 2022_03_24, reviewed_at 2024_03_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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