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 30th, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Self-sent fake PDF attachment with misleading link	Sublime Security	21d ago Sep 9th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis URL analysis Sender analysis
Service abuse: GitHub notification with excessive mentions and suspicious links	Sublime Security	5mo ago Apr 7th, 2026	Credential Phishing Malware/Ransomware Free file host Free subdomain host Social engineering Header analysis URL analysis Sender analysis Whois
Service abuse: Google application integration redirecting to suspicious hosts	Sublime Security	9mo ago Dec 17th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Free subdomain host Open redirect Header analysis Sender analysis URL analysis
Service abuse: Google Firebase sender address with suspicious content	Sublime Security	3mo ago Jun 18th, 2026	Spam Credential Phishing Free subdomain host Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis URL analysis Whois
Service abuse: Google OAuth with suspicious redirect destination	Sublime Security	4mo ago May 27th, 2026	Credential Phishing Evasion Free file host Free subdomain host Open redirect Social engineering URL analysis Threat intelligence
Service abuse: Outlook Groups with Google Sites link and evasion tag	Sublime Security	3mo ago Jun 17th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis Header analysis URL analysis Sender analysis
Service abuse: Suspicious Datadog alert	Sublime Security	3mo ago Jun 11th, 2026	Credential Phishing Malware/Ransomware Evasion Free subdomain host Sender analysis URL analysis
Shopify infrastructure abuse	Sublime Security	2y ago Nov 13th, 2024	Credential Phishing Spam Evasion Free subdomain host Impersonation: Brand Social engineering Content analysis Header analysis URL analysis
Spam: Link to blob.core.windows.net from new domain (<30d)	Sublime Security	1y ago Jul 16th, 2025	Spam Free subdomain host Header analysis URL analysis Sender analysis
Spoofable internal domain with suspicious signals	Sublime Security	1y ago Jul 23rd, 2025	Credential Phishing Free file host Free subdomain host Social engineering Spoofing Content analysis Header analysis Natural Language Understanding Sender analysis
Vendor compromise: GovDelivery message with suspicious link	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Malware/Ransomware Free subdomain host IPFS Social engineering Evasion Impersonation: Brand Natural Language Understanding URL analysis Whois
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

62 Rules

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