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 Sep 9th, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
VIP impersonation: Invoice fraud with mobile device sign-off	Sublime Security	1mo ago Aug 10th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Sender analysis
VIP impersonation: Payment handoff with VIP display name authored fake threads	Sublime Security	17d ago Aug 24th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Natural Language Understanding Sender analysis Header analysis
VIP Impersonation via Google Group relay with suspicious indicators	Sublime Security	1mo ago Aug 5th, 2026	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: VIP handoff with fake forwarded invoice thread	Sublime Security	24d ago Aug 17th, 2026	BEC/Fraud Impersonation: VIP Social engineering Spoofing Out of band pivot Header analysis Content analysis URL analysis Sender analysis
VIP impersonation: VIP name within a delimited subject with fake previous threads	Sublime Security	2mo ago Jul 8th, 2026	BEC/Fraud Impersonation: VIP Social engineering Spoofing Content analysis Sender analysis Header analysis
VIP impersonation: VIP payment redirect handoff via fake threads	Sublime Security	1mo ago Aug 10th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Natural Language Understanding Sender analysis Header analysis
VIP impersonation: VIP recipient of previous thread with HTML generator	Sublime Security	2mo ago Jul 7th, 2026	BEC/Fraud Impersonation: VIP Social engineering Evasion HTML analysis Content analysis Sender analysis
VIP impersonation with BEC language (near match, untrusted sender)	Sublime Security	5mo 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	3mo ago Jun 5th, 2026	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	5mo ago Mar 25th, 2026	BEC/Fraud Impersonation: VIP Social engineering Content analysis Content analysis Natural Language Understanding Sender analysis
Xero infrastructure abuse	Sublime Security	10mo ago Nov 3rd, 2025	Credential Phishing Evasion Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Xero invoice abuse	Sublime Security	8mo 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	3mo ago May 15th, 2026	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	2mo ago Jul 8th, 2026	Credential Phishing Free file host Free subdomain host Social engineering Impersonation: Brand Header analysis HTML analysis Natural Language Understanding URL analysis

764 Rules

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