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 Oct 23rd, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Business Email Compromise (BEC) attempt from untrusted sender	Sublime Security	1mo ago Sep 23rd, 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	1mo ago Sep 23rd, 2026	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	1y 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	1mo ago Sep 2nd, 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	11d ago Oct 14th, 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	5mo ago May 4th, 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	2mo ago Aug 5th, 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	9mo 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	27d ago Sep 28th, 2026	Callback Phishing Free email provider Impersonation: Brand Out of band pivot Social engineering File analysis Sender analysis
Callback phishing: SumUp infrastructure abuse	Sublime Security	27d ago Sep 28th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Callback phishing via Adobe Sign comment	Sublime Security	27d ago Sep 28th, 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	4mo ago Jun 11th, 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	2mo ago Aug 7th, 2026	Callback Phishing Social engineering Evasion ICS Phishing File analysis Header analysis Natural Language Understanding Sender analysis
Callback phishing via DocuSign comment	Sublime Security	9mo 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	1mo ago Sep 23rd, 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	1mo ago Sep 23rd, 2026	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	2mo ago Jul 27th, 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	27d ago Sep 28th, 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	27d ago Sep 28th, 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	27d ago Sep 28th, 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	5mo ago May 4th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Callback Phishing via Zoom comment	Sublime Security	8mo ago Feb 11th, 2026	Callback Phishing Out of band pivot Social engineering Impersonation: Brand Computer Vision Content analysis Header analysis Sender analysis
Callback phishing: Zero-width character obfuscation from freemail sender	Sublime Security	2mo ago Aug 5th, 2026	Callback Phishing Free email provider Evasion Social engineering HTML analysis Content analysis Sender analysis
Callback scam: Impersonation via TimeTrade infrastructure	Sublime Security	1y 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	1y 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	5mo ago May 4th, 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	1y ago Aug 5th, 2025	Malware/Ransomware Free file host Social engineering Header analysis Sender analysis URL analysis
ClickFix: Clipboard hijack lure with copy-paste-to-terminal instruction	Sublime Security	1mo ago Aug 26th, 2026	Malware/Ransomware Credential Phishing Evasion Social engineering Scripting Content analysis Natural Language Understanding Sender analysis URL analysis
ClickFunnels link infrastructure abuse	Sublime Security	26d ago Sep 29th, 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	1mo ago Sep 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	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Constant Contact link infrastructure abuse	Sublime Security	1mo ago Sep 23rd, 2026	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	1mo ago Sep 23rd, 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	2mo ago Aug 6th, 2026	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	1mo ago Sep 23rd, 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	24d ago Oct 1st, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis
Credential phishing: Engaging language and other indicators (untrusted sender)	Sublime Security	24d ago Oct 1st, 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	7mo 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	27d ago Sep 28th, 2026	Credential Phishing Social engineering Content analysis Natural Language Understanding Sender analysis
Credential phishing: Fake security alert from newly registered domain	Sublime Security	1mo ago Sep 17th, 2026	Credential Phishing Social engineering Impersonation: Brand Whois Content analysis Sender analysis
Credential phishing: Fake storage alerts (unsolicited)	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering Content analysis Sender analysis
Credential phishing: Financial lure via ActiveCampaign infrastructure	Sublime Security	2d ago Oct 23rd, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Credential phishing: Generic document sharing	Sublime Security	21d ago Oct 4th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Impersonation: Employee Content analysis Natural Language Understanding URL analysis Sender analysis
Credential phishing: Hyper-linked image leading to free file host	Sublime Security	26d ago Sep 29th, 2026	Credential Phishing Evasion Free file host Image as content Social engineering Content analysis Header analysis Sender analysis URL analysis
Credential phishing language and suspicious indicators (unknown sender)	Sublime Security	26d ago Sep 29th, 2026	Credential Phishing Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis
Credential phishing link (unknown sender)	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering Computer Vision Sender analysis URL analysis URL screenshot
Credential phishing: Re-Authentication lure	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering Impersonation: Brand Natural Language Understanding Content analysis URL analysis Header analysis Sender analysis
Credential phishing: 'Secure message' and engaging language	Sublime Security	1mo ago Sep 18th, 2026	Credential Phishing Social engineering Natural Language Understanding Sender analysis
Credential phishing: Suspicious e-sign agreement document notification	Sublime Security	3d ago Oct 22nd, 2026	Credential Phishing Social engineering Content analysis Header analysis HTML analysis URL analysis Sender analysis
Credential Phishing: Suspicious language, link, recipients and other indicators	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Evasion Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis

786 Rules

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