ET MALWARE Lumma Stealer Related Fake Captcha URI Structure M4

Query · suricata

flow:established,to_server;
urilen:<28;
http.method;
content:"GET";
http.uri;
content:"/human-verify-system"; startswith; fast_pattern;
Raw source ET MALWARE Lumma Stealer Related Fake Captcha URI Structure M4 · Suricata
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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 Lumma Stealer Related Fake Captcha URI Structure M4";
    flow:established,to_server;
    urilen:<28;
    http.method;
    content:"GET";
    http.uri;
    content:"/human-verify-system"; startswith; fast_pattern;
    reference:url,github.com/PaloAltoNetworks/Unit42-timely-threat-intel/blob/main/2024-08-28-IOCs-for-Lumman-Stealer-from-fake-human-captcha-copy-paste-script.txt;
    reference:url,x.com/Unit42_Intel/status/1829178013423992948;
    classtype:trojan-activity;
    sid:2055656; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_30, deployment Perimeter, deployment SSLDecrypt, malware_family Lumma_Stealer, confidence High, signature_severity Major, updated_at 2024_09_04, reviewed_at 2025_04_15;
)

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