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 Jun 8th, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Suspicious recipients pattern with NLU credential theft indicators	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Evasion Content analysis Header analysis Natural Language Understanding URL analysis
Suspicious sender display name with long procedurally generated text blob	Sublime Security	10mo ago Jul 16th, 2025	Credential Phishing Evasion Content analysis Sender analysis
Suspicious subject with long procedurally generated text blob	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Spam Evasion Content analysis Sender analysis
Truth Social infrastructure abuse via link redirect	Sublime Security	10mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Spam Evasion Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Twitter infrastructure abuse via link shortener	Sublime Security	10mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Spam Evasion Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Unicode QR code	Sublime Security	9mo ago Aug 25th, 2025	Credential Phishing Evasion Content analysis Sender analysis QR code analysis
Unusually long local part from untrusted sender address	Sublime Security	10mo ago Aug 5th, 2025	Credential Phishing Spam Evasion Header analysis Sender analysis
URI protocol handler: search-ms	Sublime Security	4mo ago Jan 12th, 2026	Malware/Ransomware Evasion File analysis HTML analysis
URL with Unicode U+2044 (⁄) or U+2215 (∕) characters	@delivr_to	4mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Vendor compromise: GovDelivery message with suspicious link	Sublime Security	10mo ago Aug 5th, 2025	Credential Phishing Malware/Ransomware Free subdomain host IPFS Social engineering Evasion Impersonation: Brand Natural Language Understanding URL analysis Whois
Venmo payment request abuse	Sublime Security	1mo ago May 4th, 2026	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	2mo 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	4d ago Jun 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
Xero infrastructure abuse	Sublime Security	7mo ago Nov 3rd, 2025	Credential Phishing Evasion Social engineering Content analysis Header analysis Natural Language Understanding URL analysis

414 Rules

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