ET HUNTING Possible Phishing Page - Page Saved with SingleFile Extension

Query · suricata

flow:established,to_client;
file.data;
content:"Page saved with SingleFile"; fast_pattern;
content:"|0d 0a 20|url|3a 20|"; distance:0;
content:"|0d 0a 20|saved date|3a 20|"; distance:0;
Raw source ET HUNTING Possible Phishing Page - Page Saved with SingleFile Extension · 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 HUNTING Possible Phishing Page - Page Saved with SingleFile Extension";
    flow:established,to_client;
    file.data;
    content:"Page saved with SingleFile"; fast_pattern;
    content:"|0d 0a 20|url|3a 20|"; distance:0;
    content:"|0d 0a 20|saved date|3a 20|"; distance:0;
    reference:url,chrome.google.com/webstore/detail/singlefile/mpiodijhokgodhhofbcjdecpffjipkle?hl=en;
    classtype:misc-activity;
    sid:2032082; rev:3;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_03_16, deployment Perimeter, confidence Low, signature_severity Critical, tag Phishing, updated_at 2024_01_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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