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 Sep 9th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Link: Mixed case HTTPS protocol	Sublime Security	6mo ago Mar 9th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multiple HTTP protocols in single URL	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis
Link: Multistage landing - Abused Adobe Acrobat hosted PDF	Sublime Security	1mo ago Jul 14th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Optical Character Recognition URL analysis Header analysis Sender analysis
Link: Multistage landing - Abused Adobe frame.io	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Evasion Free file host Content analysis Whois Computer Vision URL analysis HTML analysis
Link: Multistage Landing - Abused Buildin.ai	Sublime Security	1y ago Sep 5th, 2025	Credential Phishing Free file host Social engineering URL analysis Natural Language Understanding
Link: Multistage landing - Abused Docusign	Sublime Security	1y 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	1y 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	6mo 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	1y 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	9mo ago Dec 1st, 2025	Credential Phishing Evasion Social engineering Content analysis HTML analysis Javascript analysis URL analysis
Link: Multistage landing - Ludus presentation	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Evasion Social engineering Impersonation: Brand Header analysis URL analysis Computer Vision URL screenshot Natural Language Understanding Optical Character Recognition Sender analysis
Link: Multistage landing - Microsoft Forms abuse	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering HTML analysis URL analysis Content analysis
Link: Multistage landing - Published Google Doc	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Free file host Social engineering Natural Language Understanding URL analysis Whois
Link: Multistage landing - Scribd document	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Impersonation: Brand Free file host URL analysis HTML analysis Natural Language Understanding Computer Vision Optical Character Recognition URL screenshot
Link: Multistage landing - Trello board abuse	Sublime Security	1mo ago Jul 16th, 2026	Credential Phishing Free file host Social engineering URL analysis Content analysis Sender analysis URL screenshot
Link: MyActiveCampaign Link Abuse	Sublime Security	1y ago Aug 20th, 2025	Credential Phishing Social engineering Natural Language Understanding URL analysis Sender analysis
Link: Non-standard port 8443 in display URL	Sublime Security	5mo ago Mar 26th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis
Link: Numeric IP obfuscation in URL	Sublime Security	2d ago Sep 8th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis
Link: Obfuscation via userinfo with excessive URL padding	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Evasion Impersonation: Brand URL analysis
Link: Obfuscation via userinfo with suspicious indicators	Sublime Security	6mo ago Mar 13th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis Content analysis
Link: Observed malicious URL path /redirect/redirect/	Sublime Security	29d ago Aug 12th, 2026	Credential Phishing Open redirect Social engineering Evasion URL analysis Content analysis
Link: Observed URL pattern with specific domain registrar	Sublime Security	2mo ago Jun 12th, 2026	Spam Free email provider URL analysis Sender analysis Whois
Link: .onion From Unsolicited Sender	Sublime Security	1y ago Jul 30th, 2025	Malware/Ransomware Credential Phishing Evasion Social engineering URL analysis Header analysis Sender analysis
Link: PDF and financial display text to free file host	Sublime Security	11mo ago Sep 24th, 2025	Credential Phishing Free file host Free email provider Social engineering Content analysis Sender analysis URL analysis
Link: PDF file disguised as HTML page	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing Malware/Ransomware Evasion PDF URL analysis Content analysis
Link: PDF filename impersonation with credential theft language	Sublime Security	6mo ago Feb 12th, 2026	Credential Phishing Social engineering Evasion PDF Content analysis Natural Language Understanding Header analysis Sender analysis URL analysis
Link: Personalized URL with recipient address on commonly abused web service	Sublime Security	5mo ago Apr 1st, 2026	Credential Phishing Malware/Ransomware Free file host Social engineering URL analysis Header analysis
Link: Personal SharePoint with invalid recipients and credential theft language	Sublime Security	7mo ago Jan 23rd, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: QR code with phishing disposition in img or pdf	Sublime Security	1y 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	1y 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: QuickBooks image lure with suspicious link	Sublime Security	1mo ago Jul 29th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Optical Character Recognition URL analysis
Link: Recently registered .vu domain in lure	Sublime Security	13d ago Aug 28th, 2026	Credential Phishing BEC/Fraud Spam Social engineering Impersonation: Brand URL analysis Whois
Link: Recipient domain in URL path	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Lookalike domain Header analysis Sender analysis URL analysis
Link: Recipient email address in 'eta' parameter	Sublime Security	7mo ago Jan 27th, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: Referrer anonymization service from untrusted sender	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis
Link: Remittance payment request with timeline template	Sublime Security	3mo ago Jun 4th, 2026	BEC/Fraud Credential Phishing Social engineering Content analysis URL analysis
Link: RFI document reference pattern in display text	Sublime Security	5mo ago Apr 1st, 2026	BEC/Fraud Social engineering Content analysis URL analysis
Link: Romance/Sexual Language With Suspicious Link	Sublime Security	2mo ago Jun 17th, 2026	Spam Social engineering Content analysis Header analysis URL analysis Whois
Link: RTL text reversal with recipient email in URL	Sublime Security	21d ago Aug 20th, 2026	Credential Phishing Evasion Social engineering HTML analysis URL analysis
Link: ScreenConnect installer with suspicious relay domain	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Out of band pivot Social engineering URL analysis File analysis Content analysis
Link: ScreenConnect remote access tool delivery with unattended guest access	Sublime Security	1mo ago Jul 21st, 2026	Malware/Ransomware Social engineering Out of band pivot URL analysis Content analysis
Link: Scribd fullscreen link from suspicious sender	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Free file host Social engineering Evasion URL analysis Sender analysis
Link: Self-sender credential theft with configuration placeholder	Sublime Security	3mo ago May 27th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis Header analysis
Link: Self-sender with IP geolocation check and suspicious link behavior	Sublime Security	1mo ago Jul 14th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis
Link: Self-sender with sender org in subject and credential theft indicator	Sublime Security	16d ago Aug 25th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis Sender analysis URL analysis Header analysis
Link: Self-sent message with quarterly document review request	Sublime Security	2mo ago Jun 26th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Header analysis Sender analysis URL analysis
Link: SharePoint filename matches org name	Sublime Security	7mo ago Feb 6th, 2026	Credential Phishing Impersonation: Employee Social engineering Content analysis URL analysis
Link: SharePoint files shared from GoDaddy federated tenants	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Evasion Sender analysis URL analysis
Link: SharePoint OneNote or PDF link with self sender behavior	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing Evasion Free file host OneNote PDF Header analysis URL analysis Sender analysis
Link: Shortened URL with fragment matching subject	Sublime Security	5mo ago Apr 9th, 2026	Credential Phishing BEC/Fraud Evasion Social engineering Content analysis URL analysis Header analysis

556 Rules

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