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
Link: Base64 encoded recipient address in URL fragment with hex subdomain	Sublime Security	2mo ago Jan 29th, 2026	Credential Phishing Evasion URL analysis Content analysis
Link: Base64 encoded recipient address in URL fragment with subject hash	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Encryption Evasion Social engineering Content analysis URL analysis Header analysis
Link: Breely link masquerading as PDF	Sublime Security	3mo ago Jan 16th, 2026	BEC/Fraud Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: chatbot.page platform abuse	Sublime Security	8mo 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: Cloud service with credential theft language	Sublime Security	2d ago Apr 23rd, 2026	Credential Phishing Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis
Link: Credential phishing traversing Russian infrastructure	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: Credential theft with invisible Unicode character in page title from unsolicited sender	Sublime Security	2mo 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	4mo 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: Direct link to limewire hosted file	Sublime Security	8mo ago Aug 18th, 2025	Malware/Ransomware Free file host URL analysis Content analysis
Link: Direct POWR.io Form Builder with suspicious patterns	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Callback Phishing Social engineering File analysis URL analysis Content analysis
Link: Display text matches subject line	Sublime Security	5mo 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	3mo ago Jan 21st, 2026	Credential Phishing Evasion Content analysis URL analysis
Link: Excessive URL rewrite encoders	Sublime Security	3mo ago Jan 21st, 2026	Credential Phishing Malware/Ransomware Encryption Evasion URL analysis Content analysis
Link: Executable file download with suspicious message content	Sublime Security	6mo ago Oct 16th, 2025	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis
Link: File sharing impersonation with suspicious language and sending patterns	Sublime Security	5mo ago Oct 31st, 2025	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	6mo 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	1mo ago Mar 24th, 2026	Credential Phishing Free file host Free subdomain host Social engineering Content analysis Natural Language Understanding URL analysis Whois
Link: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	9mo ago Jul 16th, 2025	Spam Free email provider Free file host Open redirect Social engineering Content analysis Sender analysis URL analysis
Link: HR impersonation with suspicious domain indicators and credential theft	Sublime Security	4mo ago Dec 3rd, 2025	Credential Phishing Impersonation: Employee Social engineering Lookalike domain Content analysis Natural Language Understanding Computer Vision URL analysis URL screenshot
Link: /index.php enclosed in three asterisks	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Callback Phishing Social engineering Content analysis URL analysis
Link: Intuit link abuse with file share context	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering URL analysis Natural Language Understanding Content analysis Header analysis
Link: Invoice or receipt from freemail sender with customer service number	@vector_sec	3mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Free email provider Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Link: IPv4-mapped IPv6 address obfuscation	Sublime Security	1mo ago Mar 17th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: JavaScript obfuscation with Telegram bot integration	Sublime Security	1mo ago Feb 25th, 2026	Credential Phishing Evasion Scripting Content analysis Javascript analysis URL analysis
Link: Jensi file preview link from unsolicited sender	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Free file host Free subdomain host Content analysis URL analysis Sender analysis
Link: Job recruitment lure from unsolicited sender with suspicious hosting	Sublime Security	18d ago Apr 7th, 2026	Credential Phishing Social engineering Content analysis Sender analysis URL analysis
Link: Microsoft device code authentication with suspicious indicators	Sublime Security	1mo ago Mar 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion URL analysis URL screenshot Content analysis
Link: Microsoft Dynamics 365 form phishing	Sublime Security	2mo ago Jan 27th, 2026	Credential Phishing Evasion Content analysis File analysis Optical Character Recognition Natural Language Understanding URL analysis URL screenshot
Link: Microsoft impersonation using hosted png with suspicious link	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis
Link: Microsoft protected message with matching sender and recipient addresses	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis File analysis Header analysis Sender analysis URL analysis
Link: Mixed case HTTPS protocol	Sublime Security	1mo ago Mar 9th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multiple HTTP protocols in single URL	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multistage landing - Abused Adobe frame.io	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Evasion Free file host Content analysis Whois Computer Vision URL analysis HTML analysis
Link: Multistage landing - Abused Docusign	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Evasion Free subdomain host Free file host Content analysis Sender analysis URL analysis Whois HTML analysis
Link: Multistage landing - Abused Google Drive	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Evasion Free email provider Free file host Content analysis Sender analysis URL analysis Whois HTML analysis
Link: Multistage landing - ClickUp abuse	Sublime Security	1mo ago Feb 27th, 2026	Credential Phishing Malware/Ransomware Evasion Free file host Free subdomain host Open redirect URL analysis Whois Content analysis
Link: Multistage landing - FreshDesk knowledge base abuse	Sublime Security	8mo ago Aug 21st, 2025	Credential Phishing Open redirect Impersonation: Brand Social engineering Content analysis Natural Language Understanding URL analysis URL screenshot
Link: Multistage landing - JotForm abuse	Sublime Security	4mo ago Dec 1st, 2025	Credential Phishing Evasion Social engineering Content analysis HTML analysis Javascript analysis URL analysis
Link: Multistage landing - Microsoft Forms abuse	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering HTML analysis URL analysis Content analysis
Link: Multistage landing - Trello board abuse	Sublime Security	8mo ago Aug 20th, 2025	Credential Phishing Free file host Social engineering URL analysis Content analysis Sender analysis URL screenshot
Link: Obfuscation via userinfo with suspicious indicators	Sublime Security	1mo ago Mar 13th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis Content analysis
Link: PDF and financial display text to free file host	Sublime Security	7mo ago Sep 24th, 2025	Credential Phishing Free file host Free email provider Social engineering Content analysis Sender analysis URL analysis
Link: PDF display text with fake copyright claim template	Sublime Security	1mo ago Mar 18th, 2026	Credential Phishing Malware/Ransomware Evasion Image as content PDF Content analysis HTML analysis
Link: PDF filename impersonation with credential theft language	Sublime Security	2mo ago Feb 12th, 2026	Credential Phishing Social engineering Evasion PDF Content analysis Natural Language Understanding Header analysis Sender analysis URL analysis
Link: Personal SharePoint with invalid recipients and credential theft language	Sublime Security	3mo ago Jan 23rd, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: QR code in EML attachment with credential phishing indicators	Sublime Security	4mo ago Dec 2nd, 2025	Credential Phishing Evasion Open redirect QR code Computer Vision Content analysis File analysis QR code analysis
Link: QR code with phishing disposition in img or pdf	Sublime Security	8mo ago Jul 30th, 2025	Credential Phishing QR code Social engineering Content analysis Computer Vision QR code analysis Sender analysis URL analysis
Link: QR Code with suspicious language (untrusted sender)	Sublime Security	8mo ago Jul 30th, 2025	Credential Phishing Impersonation: Brand QR code Social engineering Content analysis Computer Vision Natural Language Understanding QR code analysis Sender analysis URL analysis
Link: Recipient email address in 'eta' parameter	Sublime Security	2mo ago Jan 27th, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: RFI document reference pattern in display text	Sublime Security	24d ago Apr 1st, 2026	BEC/Fraud Social engineering Content analysis URL analysis

522 Rules

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