ET MALWARE Shai-Hulud (Here We Go Again) NPM Malware RPC Ethereum Call

Query · suricata

flow:established,to_server;
http.request_body; strip_whitespace;
content:"|22|method|22 3a 22|eth_call|22|";
content:"|22|to|22 3a 22|0xE1f2395ee43e45A1556EC6438a88c31B83493103|22|"; fast_pattern;
content:"|22|data|22 3a 22|0x53ed5143|22|";
http.method;
content:"POST";
Raw source ET MALWARE Shai-Hulud (Here We Go Again) NPM Malware RPC Ethereum Call · 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 Shai-Hulud (Here We Go Again) NPM Malware RPC Ethereum Call";
    flow:established,to_server;
    http.request_body; strip_whitespace;
    content:"|22|method|22 3a 22|eth_call|22|";
    content:"|22|to|22 3a 22|0xE1f2395ee43e45A1556EC6438a88c31B83493103|22|"; fast_pattern;
    content:"|22|data|22 3a 22|0x53ed5143|22|";
    http.method;
    content:"POST";
    reference:url,research.jfrog.com/post/shai-hulud-is-back-august/;
    classtype:command-and-control;
    sid:2071386; rev:2;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_08_04, deployment Perimeter, malware_family Shai_Hulud, performance_impact Low, confidence High, signature_severity Critical, updated_at 2026_08_05;
)

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