Sublime Core Feed

This repo contains open-source Rules for Sublime, a free and open platform for detecting and preventing email attacks like BEC, malware, and credential phishing.

Sublime Security

Last updated Apr 24th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Service abuse: Substack credential theft with confusable characters and branded button redirects	Sublime Security	1mo ago Mar 19th, 2026	Credential Phishing Social engineering Evasion Sender analysis HTML analysis Natural Language Understanding URL analysis
Service abuse: Suspicious Zoom Docs link	Sublime Security	4mo ago Dec 2nd, 2025	Credential Phishing Social engineering Free file host Evasion HTML analysis Sender analysis Header analysis
Service abuse: Trello board invitation with VIP impersonation	Sublime Security	2mo ago Feb 3rd, 2026	Credential Phishing Impersonation: VIP Social engineering Content analysis Header analysis HTML analysis Sender analysis
Sharepoint link likely unrelated to sender	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Impersonation: Employee Lookalike domain OneNote PDF Social engineering URL analysis Sender analysis Header analysis HTML analysis
Spam: Commonly observed formatting of unauthorized free giveaways	Sublime Security	3mo ago Jan 14th, 2026	Spam Impersonation: Brand Social engineering Content analysis HTML analysis Sender analysis URL analysis
Spam: Item giveaway spam template	Sublime Security	8mo ago Aug 5th, 2025	Spam Image as content Content analysis HTML analysis Sender analysis Exif analysis
URI protocol handler: search-ms	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Evasion File analysis HTML analysis
Venmo payment request abuse	Sublime Security	7mo ago Sep 5th, 2025	Callback Phishing BEC/Fraud Social engineering Impersonation: Brand Evasion Natural Language Understanding Content analysis Sender analysis HTML analysis
Zoom Events newsletter abuse	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Free file host Free subdomain host Social engineering Impersonation: Brand Header analysis HTML analysis Natural Language Understanding URL analysis

109 Rules

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