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: MyActiveCampaign Link Abuse	Sublime Security	8mo 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	30d ago Mar 26th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis
Link: Obfuscation via userinfo with excessive URL padding	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Evasion Impersonation: Brand URL analysis
Link: Obfuscation via userinfo with suspicious indicators	Sublime Security	1mo ago Mar 13th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis Content analysis
Link: .onion From Unsolicited Sender	Sublime Security	8mo 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	7mo ago Sep 24th, 2025	Credential Phishing Free file host Free email provider Social engineering Content analysis Sender analysis URL 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: Personalized URL with recipient address on commonly abused web service	Sublime Security	24d 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	3mo 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	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: QuickBooks image lure with suspicious link	Sublime Security	9mo ago Jul 23rd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Optical Character Recognition URL analysis
Link: Recipient domain in URL path	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Lookalike domain Header 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: Referrer anonymization service from untrusted sender	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis
Link: RFI document reference pattern in display text	Sublime Security	24d ago Apr 1st, 2026	BEC/Fraud Social engineering Content analysis URL analysis
Link: Romance/Sexual Language With Suspicious Link	Sublime Security	8mo ago Aug 22nd, 2025	Spam Social engineering Content analysis Header analysis URL analysis Whois
Link: ScreenConnect installer with suspicious relay domain	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Evasion Out of band pivot Social engineering URL analysis File analysis Content analysis
Link: Scribd fullscreen link from suspicious sender	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Free file host Social engineering Evasion URL analysis Sender analysis
Link: Self-sender with sender org in subject and credential theft indicator	Sublime Security	3mo ago Jan 12th, 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	3mo ago Jan 21st, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Header analysis Sender analysis URL analysis
Link: SharePoint filename matches org name	Sublime Security	2mo ago Feb 6th, 2026	Credential Phishing Impersonation: Employee Social engineering Content analysis URL analysis
Link: SharePoint files shared from GoDaddy federated tenants	Sublime Security	9mo ago Jul 16th, 2025	Credential Phishing Evasion Sender analysis URL analysis
Link: SharePoint OneNote or PDF link with self sender behavior	Sublime Security	1mo 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	16d ago Apr 9th, 2026	Credential Phishing BEC/Fraud Evasion Social engineering Content analysis URL analysis Header analysis
Link: Single character path with credential theft body and self sender behavior or invalid recipient	Sublime Security	7h ago Apr 24th, 2026	Credential Phishing Evasion Social engineering Natural Language Understanding URL analysis Sender analysis Header analysis
Link: Spam website with evasion indicators	Sublime Security	5mo ago Nov 25th, 2025	Spam Evasion URL analysis URL screenshot Content analysis
Link: Squarespace infrastructure abuse	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Spam Impersonation: Brand Social engineering Header analysis URL analysis Sender analysis
Link: Suspicious go.php redirect with document lure	Sublime Security	2mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Link: Suspicious Sharepoint folder share	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Free file host Evasion HTML analysis Header analysis Sender analysis URL analysis
Link: Suspicious URL with recipient targeting and special characters	Sublime Security	2mo ago Feb 21st, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: Tax document lure Portuguese/Spanish with suspicious domains	Sublime Security	11d ago Apr 14th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Free file host Free subdomain host Social engineering Content analysis URL analysis Whois
Link to a domain with punycode characters	@ajpc500	5mo ago Nov 12th, 2025	Credential Phishing Evasion Lookalike domain Punycode Sender analysis URL analysis
Link to auto-downloaded disk image in encrypted zip	@ajpc500	3mo ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to auto-downloaded DMG in archive	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis URL analysis
Link to auto-downloaded DMG in encrypted zip	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to auto-downloaded file with Adobe branding	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Impersonation: Brand Social engineering File analysis Optical Character Recognition Sender analysis URL analysis URL screenshot
Link to auto-downloaded file with Google Drive branding	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Impersonation: Brand Social engineering Content analysis File analysis Optical Character Recognition URL analysis URL screenshot
Link to auto-download of a suspicious file type (unsolicited)	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to Google Apps Script macro (unsolicited)	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Open redirect Social engineering Sender analysis URL analysis
Link to Google Apps Script macro via comment tagging	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Social engineering Content analysis Sender analysis URL analysis
Link: Tycoon2FA phishing kit (non-exhaustive)	Sublime Security	3mo ago Jan 23rd, 2026	Credential Phishing Free subdomain host Evasion Credential Phishing URL analysis HTML analysis Content analysis
Link: Uncommon SharePoint document type with sender's display name	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Social engineering OneNote PDF Content analysis Header analysis HTML analysis URL analysis
Link: Unsolicited email contains link leading to Tycoon URL structure	Sublime Security	1mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Natural Language Understanding URL analysis
Link: Unsolicited email contains link to page containing Tycoon URI structure	Sublime Security	1mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis URL screenshot
Link: URL fragment with hexadecimal pattern obfuscation	Sublime Security	2mo ago Jan 29th, 2026	Credential Phishing Evasion Content analysis URL analysis
Link: URL path containing /moni/index	Sublime Security	7h ago Apr 24th, 2026	Credential Phishing Open redirect Evasion URL analysis
Link: URL redirecting to blob URL	Sublime Security	1mo ago Feb 24th, 2026	Credential Phishing Malware/Ransomware Evasion Free file host Open redirect Sender analysis URL analysis Threat intelligence
Link: URL scheme obfuscation via split HTML anchors	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Evasion HTML injection Social engineering Content analysis HTML analysis URL analysis
Link: URL shortener with copy-paste instructions and credential theft language	Sublime Security	2mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis

442 Rules

Page 5 of 9