ET PHISHING Tycoon 2FA Document Delivery Webpage

Query · suricata

flow:established,to_client;
http.response_body;
content:"|2f 2f 20|Prevent|20|certain|20|key|20|combinations";
content:"|2f 2f 20|Bot|2d|protection|20|and|20|Turnstile|20|vars"; fast_pattern;
content:"const|20|FILE|5f|URL|20 3d 20|atob";
target:dest_ip;
Raw source ET PHISHING Tycoon 2FA Document Delivery Webpage · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET PHISHING Tycoon 2FA Document Delivery Webpage";
    flow:established,to_client;
    http.response_body;
    content:"|2f 2f 20|Prevent|20|certain|20|key|20|combinations";
    content:"|2f 2f 20|Bot|2d|protection|20|and|20|Turnstile|20|vars"; fast_pattern;
    content:"const|20|FILE|5f|URL|20 3d 20|atob";
    reference:url,proofpoint.com/us/blog/email-and-cloud-threats/tycoon-2fa-phishing-kit-mfa-bypass;
    classtype:credential-theft;
    sid:2065670; rev:2;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_11_05, deployment Perimeter, deployment SSLDecrypt, signature_severity Critical, tag Phishing, updated_at 2026_01_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
    target:dest_ip;
)

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