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

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Twitter infrastructure abuse via link shortener	Sublime Security	9mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Spam Evasion Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
URL with Unicode U+2044 (⁄) or U+2215 (∕) characters	@delivr_to	3mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Vendor compromise: GovDelivery message with suspicious link	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Malware/Ransomware Free subdomain host IPFS Social engineering Evasion Impersonation: Brand Natural Language Understanding URL analysis Whois
Vendor impersonation: Thread hijacking with typosquat domain	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Lookalike domain Social engineering Spoofing Content analysis Natural Language Understanding Sender analysis Whois
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
VIP impersonation: Fake thread with display name match, email mismatch	Sublime Security	24d ago Apr 3rd, 2026	BEC/Fraud Evasion Impersonation: VIP Social engineering Spoofing Content analysis Header analysis Sender analysis Whois
VIP Impersonation via Google Group relay with suspicious indicators	Sublime Security	5mo ago Nov 12th, 2025	BEC/Fraud Credential Phishing Malware/Ransomware Evasion Free email provider Impersonation: Employee Social engineering Spoofing Content analysis Header analysis Natural Language Understanding Sender analysis
VIP impersonation with BEC language (near match, untrusted sender)	Sublime Security	1mo ago Mar 25th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Natural Language Understanding Sender analysis
VIP impersonation with charitable donation fraud	Sublime Security	5mo ago Nov 12th, 2025	BEC/Fraud Impersonation: Employee Impersonation: VIP Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
VIP impersonation with urgent request (strict match, untrusted sender)	Sublime Security	1mo ago Mar 25th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Content analysis Natural Language Understanding Sender analysis
Xero infrastructure abuse	Sublime Security	5mo ago Nov 3rd, 2025	Credential Phishing Evasion Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Xero invoice abuse	Sublime Security	4mo ago Dec 17th, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Impersonation: Employee Social engineering Natural Language Understanding Content analysis Sender analysis
X (Twitter) impersonation with credential phishing motives	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Header analysis Optical Character Recognition Natural Language Understanding Sender 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

564 Rules

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