ET PHISHING Generic Hidden Text - Possible Phishing Landing

Query · suricata

flow:established,to_client;
file.data;
content:"<span style='font-size:0px|3b|'>";
content:"<span style='font-size:0px|3b|'>"; within:75;
content:"<span style='font-size:0px|3b|'>"; within:75;
content:"<span style='font-size:0px|3b|'>"; within:75;
content:"<span style='font-size:0px|3b|'>"; within:75;
content:"<span style='font-size:0px|3b|'>"; within:75;
Raw source ET PHISHING Generic Hidden Text - Possible Phishing Landing · 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 Generic Hidden Text - Possible Phishing Landing";
    flow:established,to_client;
    file.data;
    content:"<span style='font-size:0px|3b|'>";
    content:"<span style='font-size:0px|3b|'>"; within:75;
    content:"<span style='font-size:0px|3b|'>"; within:75;
    content:"<span style='font-size:0px|3b|'>"; within:75;
    content:"<span style='font-size:0px|3b|'>"; within:75;
    content:"<span style='font-size:0px|3b|'>"; within:75;
    classtype:social-engineering;
    sid:2032510; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_04_06, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2021_04_06, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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