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 Jul 25th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Link: Base64 encoded recipient address in URL fragment with subject hash	Sublime Security	6mo ago Jan 12th, 2026	Credential Phishing Encryption Evasion Social engineering Content analysis URL analysis Header analysis
Link: Breely link masquerading as PDF	Sublime Security	6mo ago Jan 16th, 2026	BEC/Fraud Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: chatbot.page platform abuse	Sublime Security	11mo 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: Concatenated display text concealing duplicate URLs with PDF reference	Sublime Security	1mo ago Jun 12th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Link: Credential harvesting with excess padding evasion	Sublime Security	5d ago Jul 21st, 2026	Credential Phishing Evasion Social engineering Content analysis HTML analysis Exif analysis URL screenshot
Link: Credential phishing traversing Russian infrastructure	Sublime Security	11mo ago Aug 5th, 2025	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: Credential theft with Cloudflare tunnel and recipient targeting	Sublime Security	1mo 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	5mo 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	7mo 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	11mo ago Aug 18th, 2025	Malware/Ransomware Free file host URL analysis Content analysis
Link: Direct POWR.io Form Builder with suspicious patterns	Sublime Security	11mo ago Aug 5th, 2025	Credential Phishing Callback Phishing Social engineering File analysis URL analysis Content analysis
Link: Display text matches subject line	Sublime Security	8mo 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	6mo ago Jan 21st, 2026	Credential Phishing Evasion Content analysis URL analysis
Link: Document sharing invitation template	Sublime Security	1mo ago Jun 12th, 2026	Credential Phishing Social engineering Free file host Content analysis
Link: Excessive URL rewrite encoders	Sublime Security	6mo ago Jan 21st, 2026	Credential Phishing Malware/Ransomware Encryption Evasion URL analysis Content analysis
Link: Executable file download with suspicious message content	Sublime Security	9mo ago Oct 16th, 2025	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis
Link: Fake forwarded message with suspicious URL in plain text	Sublime Security	6d ago Jul 20th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Content analysis Sender analysis URL analysis
Link: Fake secure message notification template	Sublime Security	1mo 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	2mo 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	9mo 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	4mo 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	1mo ago Jun 12th, 2026	Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: Fraudulent state business filing notice	Sublime Security	12d 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	11d 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	16d ago Jul 10th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Natural Language Understanding Header analysis Sender analysis
Link: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	2mo ago Apr 28th, 2026	Spam Free email provider Free file host ICS Phishing Open redirect Social engineering Content analysis Sender analysis URL analysis
Link: Google Cloud Storage hosted credential harvesting page	Sublime Security	26d ago Jun 30th, 2026	Credential Phishing Free file host Evasion Social engineering Impersonation: Brand URL analysis Content analysis
Link: Google Cloud Storage with short-path link delivery	Sublime Security	26d ago Jun 30th, 2026	Spam Credential Phishing Free file host Evasion Social engineering Impersonation: Brand URL analysis Content analysis
Link: HR impersonation with suspicious domain indicators and credential theft	Sublime Security	7mo 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	6mo ago Jan 12th, 2026	Malware/Ransomware Callback Phishing Social engineering Content analysis URL analysis
Link: Intuit link abuse with file share context	Sublime Security	6mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering URL analysis Natural Language Understanding Content analysis Header analysis
Link: Invalid reply-to with recipient details in subject, body, and encoded link	Sublime Security	10d ago Jul 16th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Spoofing Header analysis Content analysis URL analysis Sender analysis
Link: Invoice or receipt from freemail sender with customer service number	@vector_sec	6mo 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	4mo ago Mar 17th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: JavaScript obfuscation with Telegram bot integration	Sublime Security	5mo ago Feb 25th, 2026	Credential Phishing Evasion Scripting Content analysis Javascript analysis URL analysis
Link: Jensi file preview link from unsolicited sender	Sublime Security	6mo 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	3mo ago Apr 7th, 2026	Credential Phishing Social engineering Content analysis Sender analysis URL analysis
Link: Microsoft device code authentication with suspicious indicators	Sublime Security	4mo 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	6mo 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	6mo 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	6mo 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	4mo ago Mar 9th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multiple HTTP protocols in single URL	Sublime Security	6mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multistage landing - Abused Adobe frame.io	Sublime Security	11mo 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	11mo 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	11mo 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	4mo 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	11mo 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	7mo 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	6mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering HTML analysis URL analysis Content analysis

620 Rules

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