ET MALWARE SNOWLIGHT C2 HTTP Requests

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"|2f 3f|a|3d|"; fast_pattern;
content:"h|3d|";
content:"t|3d|ws|5f|";
content:"p|3d|";
target:src_ip;
Raw source ET MALWARE SNOWLIGHT C2 HTTP Requests · 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 SNOWLIGHT C2 HTTP Requests";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"|2f 3f|a|3d|"; fast_pattern;
    content:"h|3d|";
    content:"t|3d|ws|5f|";
    content:"p|3d|";
    reference:url,sysdig.com/blog/unc5174-chinese-threat-actor-vshell/;
    classtype:trojan-activity;
    sid:2061614; rev:1;
    metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2025_04_15, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2025_04_15;
    target:src_ip;
)

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