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
Brand impersonation: Vanta	@itsRobPicard	2y ago Apr 23rd, 2024	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Sender analysis
Brand impersonation: Venmo	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Sender analysis
Brand impersonation: Wells Fargo	Sublime Security	10d ago Apr 15th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Content analysis Sender analysis
Brand impersonation: WeTransfer	Sublime Security	8mo ago Aug 5th, 2025	BEC/Fraud Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam Impersonation: Brand Content analysis Header analysis Sender analysis
Brand impersonation: Wise	Sublime Security	4mo ago Dec 12th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis
Brand impersonation: Wix	Sublime Security	1mo ago Mar 16th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis
Brand impersonation: Xodo Sign	Sublime Security	3mo ago Jan 16th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis
Brand impersonation: Zoom (strict)	Sublime Security	2y ago Aug 4th, 2024	Credential Phishing Impersonation: Brand Social engineering Sender analysis
Brand impersonation: Zoom via lookalike domain	Sublime Security	18d ago Apr 7th, 2026	Credential Phishing Impersonation: Brand Free email provider Social engineering URL analysis Sender analysis
Brand spoof: Dropbox	Sublime Security	2y ago Apr 23rd, 2024	Credential Phishing Malware/Ransomware Impersonation: Brand Spoofing Header analysis Sender analysis
Business Email Compromise (BEC) attempt from unsolicited sender	Sublime Security	9mo ago Jul 16th, 2025	BEC/Fraud Social engineering Spoofing Content analysis File analysis Header analysis Sender analysis
Business Email Compromise (BEC) attempt from untrusted sender	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Business Email Compromise (BEC) attempt from untrusted sender (French/Français)	Sublime Security	9mo ago Jul 16th, 2025	BEC/Fraud Social engineering Content analysis Header analysis Sender analysis
Business Email Compromise (BEC) attempt with masked recipients and reply-to mismatch (unsolicited)	Sublime Security	9mo ago Jul 16th, 2025	BEC/Fraud Evasion Free email provider Header analysis Sender analysis
Business Email Compromise (BEC) with request for mobile number	Sublime Security	30d ago Mar 26th, 2026	BEC/Fraud Social engineering Content analysis Natural Language Understanding Sender analysis
Business Email Compromise: Request for mobile number via reply thread hijacking	Sublime Security	7h ago Apr 24th, 2026	BEC/Fraud Social engineering Content analysis Natural Language Understanding Sender analysis
Callback phishing: AOL senders with suspicious HTML template or PDF attachment	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Free email provider Social engineering Content analysis Header analysis File analysis HTML analysis Exif analysis Sender analysis
Callback phishing in body or attachment (untrusted sender)	Sublime Security	29d ago Mar 27th, 2026	Callback Phishing Out of band pivot Social engineering Content analysis File analysis Optical Character Recognition Natural Language Understanding Sender analysis
Callback phishing: Social Security Administration fraud	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Out of band pivot PDF Social engineering Exif analysis File analysis Optical Character Recognition Sender analysis
Callback phishing solicitation in message body	Sublime Security	6mo ago Oct 17th, 2025	Callback Phishing Free email provider Impersonation: Brand Out of band pivot Social engineering File analysis Sender analysis
Callback phishing: SumUp infrastructure abuse	Sublime Security	7mo ago Sep 5th, 2025	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Callback phishing via Adobe Sign comment	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Evasion Impersonation: Brand Out of band pivot Social engineering Content analysis Computer Vision Header analysis Sender analysis URL analysis
Callback phishing via Apple ID display name abuse	Sublime Security	17d ago Apr 8th, 2026	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis
Callback phishing via calendar invite	Sublime Security	3mo ago Jan 22nd, 2026	Callback Phishing Social engineering Evasion File analysis Header analysis Natural Language Understanding Sender analysis
Callback phishing via DocuSign comment	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Evasion Impersonation: Brand Out of band pivot Social engineering Content analysis Computer Vision Header analysis Sender analysis URL analysis
Callback phishing via extensionless rfc822 attachment	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Impersonation: Brand Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis
Callback phishing via Google Group abuse	Sublime Security	9mo ago Jul 16th, 2025	Callback Phishing Free email provider Impersonation: Brand Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis
Callback phishing via Microsoft comment	Sublime Security	12d ago Apr 13th, 2026	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Callback Phishing via Signable E-Signature Request	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis
Callback phishing via SignFree e-signature request	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis
Callback phishing via Xodo Sign comment	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis
Callback phishing via Zelle Service Abuse	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Callback Phishing via Zoom comment	Sublime Security	2mo ago Feb 11th, 2026	Callback Phishing Out of band pivot Social engineering Impersonation: Brand Computer Vision Content analysis Header analysis Sender analysis
Callback scam: Impersonation via TimeTrade infrastructure	Sublime Security	8mo ago Aug 20th, 2025	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Sender analysis Header analysis
Canva design with suspicious embedded link	Sublime Security	6mo ago Sep 29th, 2025	Credential Phishing Evasion Social engineering Free file host HTML analysis URL analysis Natural Language Understanding Sender analysis
Canva infrastructure abuse	Sublime Security	2mo ago Feb 6th, 2026	BEC/Fraud Callback Phishing Social engineering Impersonation: Brand Impersonation: Employee Free email provider Natural Language Understanding Sender analysis Content analysis
Catbox.moe link from untrusted source	Sublime Security	8mo ago Aug 5th, 2025	Malware/Ransomware Free file host Social engineering Header analysis Sender analysis URL analysis
ClickFunnels link infrastructure abuse	Sublime Security	2mo ago Feb 5th, 2026	Credential Phishing Free email provider Free subdomain host Social engineering Content analysis Header analysis QR code analysis Sender analysis URL analysis
Cloud storage impersonation with credential theft indicators	Sublime Security	2d ago Apr 23rd, 2026	Credential Phishing Free file host Image as content Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Commonly abused sender TLD with engaging language	Sublime Security	8mo ago Aug 7th, 2025	Credential Phishing Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Constant Contact link infrastructure abuse	Sublime Security	6mo ago Oct 17th, 2025	Credential Phishing Free email provider Open redirect Social engineering Content analysis Header analysis QR code analysis Sender analysis
COVID-19 themed fraud with sender and reply-to mismatch or compensation award	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Credential phishing content and link (untrusted sender)	Sublime Security	4mo ago Dec 17th, 2025	Credential Phishing Social engineering Computer Vision Sender analysis URL analysis URL screenshot
Credential phishing: DocuSign embedded image lure with no DocuSign domains in links	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis
Credential phishing: Email delivery failure impersonation	Sublime Security	9mo ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis
Credential phishing: Engaging language and other indicators (untrusted sender)	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis
Credential phishing: Fake card notification with tracking lure	Sublime Security	1mo ago Mar 24th, 2026	Credential Phishing Social engineering Content analysis Natural Language Understanding URL analysis Sender analysis
Credential phishing: Fake password expiration from new and unsolicited sender	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Social engineering Content analysis Natural Language Understanding Sender analysis
Credential phishing: Fake storage alerts (unsolicited)	Sublime Security	23d ago Apr 2nd, 2026	Credential Phishing Social engineering Content analysis Sender analysis
Credential phishing: Financial lure via ActiveCampaign infrastructure	Sublime Security	29d ago Mar 27th, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis

646 Rules

Page 5 of 13