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
Impersonation: Suspected supplier impersonation with suspicious content	Sublime Security	2mo ago Jul 27th, 2026	BEC/Fraud Evasion Free email provider Lookalike domain Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis Whois
Inline image as message with attachment or link	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Evasion Image as content Content analysis HTML analysis URL analysis
Investor solicitation with organization targeting	Sublime Security	5mo ago May 8th, 2026	BEC/Fraud Social engineering Content analysis
Invoicera infrastructure abuse	Sublime Security	2y ago Mar 7th, 2024	Credential Phishing Spam Free file host Free subdomain host Image as content Social engineering Content analysis Header analysis Sender analysis
Job scam (unsolicited sender)	Sublime Security	11mo ago Nov 3rd, 2025	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Job scam with specific salary pattern	Sublime Security	10d ago Oct 15th, 2026	BEC/Fraud Social engineering Content analysis Natural Language Understanding Header analysis Sender analysis
Link: Abused Adobe Express	Sublime Security	1y ago Jul 23rd, 2025	Credential Phishing Evasion Free subdomain host Free file host Content analysis Sender analysis URL analysis Whois HTML analysis
Link: Abused Trac-link URL	Sublime Security	1mo ago Sep 14th, 2026	Credential Phishing Open redirect Evasion PDF URL analysis File analysis Content analysis
Link: Adobe share from unsolicited sender	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content analysis Sender analysis
Link: Adobe share with suspicious indicators	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Evasion Free file host Content analysis URL screenshot Sender analysis Natural Language Understanding URL analysis
Link: Apple App Store link to apps impersonating AI adveristing	Sublime Security	7mo ago Mar 5th, 2026	Credential Phishing Impersonation: Brand Content analysis URL analysis HTML analysis
Link: Apple App Store malicious ad manager themed apps from free email provider	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Malware/Ransomware Free email provider Social engineering Evasion Content analysis Sender analysis URL analysis
Link: Base64 encoded recipient address in URL fragment with hex subdomain	Sublime Security	8mo ago Jan 29th, 2026	Credential Phishing Evasion URL analysis Content analysis
Link: Base64 encoded recipient address in URL fragment with subject hash	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Encryption Evasion Social engineering Content analysis URL analysis Header analysis
Link: Base64-encoded redirect URL	Sublime Security	11d ago Oct 14th, 2026	Credential Phishing Open redirect Evasion Encryption URL analysis Content analysis
Link: Breely link masquerading as PDF	Sublime Security	9mo ago Jan 16th, 2026	BEC/Fraud Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: chatbot.page platform abuse	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering Out of band pivot URL analysis Natural Language Understanding Content analysis HTML analysis Javascript analysis URL screenshot
Link: Compromised WordPress site redirecting to suspicious root domain	Sublime Security	26d ago Sep 29th, 2026	Credential Phishing BEC/Fraud Open redirect Evasion Social engineering URL analysis Content analysis
Link: Concatenated display text concealing duplicate URLs with PDF reference	Sublime Security	4mo ago Jun 12th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Link: Copy-paste browser instruction with suspicious domain	Sublime Security	26d ago Sep 29th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis URL analysis Sender analysis
Link: Credential harvesting with excess padding evasion	Sublime Security	1mo ago Aug 28th, 2026	Credential Phishing Evasion Social engineering Content analysis HTML analysis Exif analysis URL screenshot
Link: Credential phishing traversing Russian infrastructure	Sublime Security	27d ago Sep 28th, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: Credential phishing with cloaked content	Sublime Security	17d ago Oct 8th, 2026	Credential Phishing Evasion Social engineering URL analysis HTML analysis Natural Language Understanding Content analysis
Link: Credential theft with Cloudflare tunnel and recipient targeting	Sublime Security	4mo ago Jun 10th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis
Link: Credential theft with invisible Unicode character in page title from unsolicited sender	Sublime Security	8mo ago Feb 13th, 2026	Credential Phishing Evasion Social engineering Natural Language Understanding Content analysis HTML analysis URL analysis URL screenshot
Link: Cryptocurrency fraud with suspicious links	Sublime Security	10mo ago Dec 1st, 2025	BEC/Fraud Social engineering Evasion Free subdomain host Scripting Content analysis Header analysis Javascript analysis Natural Language Understanding Sender analysis URL analysis URL screenshot Whois
Link: Delimited encoded path parameters (~V~ scheme)	Sublime Security	1mo ago Aug 31st, 2026	Credential Phishing Spam Evasion Social engineering Spoofing URL analysis Content analysis
Link: Direct link to limewire hosted file	Sublime Security	1mo ago Sep 23rd, 2026	Malware/Ransomware Free file host URL analysis Content analysis
Link: Direct POWR.io Form Builder with suspicious patterns	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Callback Phishing Social engineering File analysis URL analysis Content analysis
Link: Display text is 'unsb'	Sublime Security	1mo ago Sep 8th, 2026	Spam BEC/Fraud Social engineering URL analysis Content analysis
Link: Display text matches subject line	Sublime Security	11mo ago Nov 14th, 2025	BEC/Fraud Credential Phishing Social engineering Evasion Header analysis Content analysis Natural Language Understanding URL analysis
Link: Display text with excessive right-to-left mark characters	Sublime Security	9mo ago Jan 21st, 2026	Credential Phishing Evasion Content analysis URL analysis
Link: Document sharing invitation template	Sublime Security	4mo ago Jun 12th, 2026	Credential Phishing Social engineering Free file host Content analysis
Link: Document-themed link to newly registered domain	Sublime Security	2mo ago Aug 18th, 2026	Credential Phishing Malware/Ransomware Social engineering Evasion URL analysis Whois Content analysis
Link: Double base64-encoded URL path	Sublime Security	2mo ago Aug 24th, 2026	Credential Phishing Encryption Evasion URL analysis Content analysis
Link: Excessive URL rewrite encoders	Sublime Security	9mo ago Jan 21st, 2026	Credential Phishing Malware/Ransomware Encryption Evasion URL analysis Content analysis
Link: Executable file download with suspicious message content	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis
Link: Fake Cloudflare verification landing page	Sublime Security	1mo ago Sep 11th, 2026	Credential Phishing Social engineering URL analysis HTML analysis Header analysis Content analysis
Link: Fake forwarded message with suspicious URL in plain text	Sublime Security	3mo ago Jul 20th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Content analysis Sender analysis URL analysis
Link: Fake RFP/bid reference number lure	Sublime Security	2mo ago Aug 25th, 2026	Credential Phishing BEC/Fraud Spam Social engineering Impersonation: Brand Spoofing Content analysis URL analysis Header analysis Sender analysis
Link: Fake secure message notification template	Sublime Security	4mo ago Jun 25th, 2026	Credential Phishing Evasion Social engineering HTML analysis Content analysis URL analysis
Link: File sharing impersonation with suspicious language and sending patterns	Sublime Security	5mo ago Apr 30th, 2026	BEC/Fraud Credential Phishing Social engineering Free subdomain host Impersonation: Brand Natural Language Understanding URL analysis Sender analysis Header analysis Content analysis
Link: File sharing pretext with suspicious body and link	Sublime Security	1y ago Oct 10th, 2025	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis HTML analysis
Link: Financial account issue with suspicious indicators	Sublime Security	7mo ago Mar 24th, 2026	Credential Phishing Free file host Free subdomain host Social engineering Content analysis Natural Language Understanding URL analysis Whois
Link: Flare-branded credential harvesting via Cloudflare tunnels	Sublime Security	4mo ago Jun 12th, 2026	Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: Fraudulent state business filing notice	Sublime Security	3mo ago Jul 14th, 2026	Credential Phishing Free subdomain host Social engineering Impersonation: Brand Content analysis Natural Language Understanding URL analysis
Link: Free file host link with 'Important Viewing Note' lure	Sublime Security	3mo ago Jul 15th, 2026	Credential Phishing Free file host Social engineering Impersonation: Brand Content analysis URL analysis Threat intelligence
Link: Generic financial document with proceedural timeline template	Sublime Security	3mo ago Jul 10th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Natural Language Understanding Header analysis Sender analysis
Link: Gmail confidential mode message with job scam subject	Sublime Security	18d ago Oct 7th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis
Link: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	27d ago Sep 28th, 2026	Spam Free email provider Free file host ICS Phishing Open redirect Social engineering Content analysis Sender analysis URL analysis

731 Rules

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