ET MALWARE Rainbow Hyena Backdoor PhantomRemote (poll) C2 Traffic

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/poll|3f|id|3d|"; fast_pattern; startswith;
content:"|26|hostname|3d|";
content:"|26|domain|3d|";
target:src_ip;
Raw source ET MALWARE Rainbow Hyena Backdoor PhantomRemote (poll) C2 Traffic · 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 -> any any (
    msg:"ET MALWARE Rainbow Hyena Backdoor PhantomRemote (poll) C2 Traffic";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/poll|3f|id|3d|"; fast_pattern; startswith;
    content:"|26|hostname|3d|";
    content:"|26|domain|3d|";
    reference:url,bi-zone.medium.com/rainbow-hyena-strikes-again-new-backdoor-and-shift-in-tactics-2dd99a10aea9;
    classtype:trojan-activity;
    sid:2063580; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2025_07_18, deployment Perimeter, malware_family PhantomRemote, confidence High, signature_severity Major, tag c2, updated_at 2025_07_18, 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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