ET PHISHING PerSwaysion Landing Page M3

Query · suricata

flow:established,to_client;
file.data;
content:"|3c|link|20|href|3d 22 22 20|rel|3d 22|shortcut|20|icon|22 20 2f 3e|";
content:"document|2e|write|28|"; distance:0;
content:"atob|28|"; within:40;
content:"PHNjcmlwdD5ldmFsKGZ1bmN0aW9uKCRuYnJ1dCw"; within:150; fast_pattern;
Raw source ET PHISHING PerSwaysion Landing Page M3 · 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 PerSwaysion Landing Page M3";
    flow:established,to_client;
    file.data;
    content:"|3c|link|20|href|3d 22 22 20|rel|3d 22|shortcut|20|icon|22 20 2f 3e|";
    content:"document|2e|write|28|"; distance:0;
    content:"atob|28|"; within:40;
    content:"PHNjcmlwdD5ldmFsKGZ1bmN0aW9uKCRuYnJ1dCw"; within:150; fast_pattern;
    reference:url,blog.group-ib.com/perswaysion;
    classtype:credential-theft;
    sid:2033063; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_06_01, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_01, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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