ET PHISHING [TW] Tycoon Phishkit CSS

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
file.data;
content:"body.start";
content:"background|2d|image|3a 20|url|28 27|https|3a 2f 2f|aadcdn|2e|msauth|2e|net|2f|"; distance:0;
content:".firstlogo"; distance:0;
content:".bannerlogo"; distance:0;
content:"/assets/officelogo.png"; distance:0; fast_pattern;
Raw source ET PHISHING [TW] Tycoon Phishkit CSS · 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 [TW] Tycoon Phishkit CSS";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file.data;
    content:"body.start";
    content:"background|2d|image|3a 20|url|28 27|https|3a 2f 2f|aadcdn|2e|msauth|2e|net|2f|"; distance:0;
    content:".firstlogo"; distance:0;
    content:".bannerlogo"; distance:0;
    content:"/assets/officelogo.png"; distance:0; fast_pattern;
    classtype:social-engineering;
    sid:2048386; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2023_10_03, deployment Perimeter, confidence High, signature_severity Critical, tag Phishing, updated_at 2026_01_29, reviewed_at 2023_10_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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