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: 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: Secure SharePoint file share from new or unusual sender	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content 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: 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: Spam website with evasion indicators	Sublime Security	5mo ago Nov 25th, 2025	Spam Evasion URL analysis URL screenshot Content 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 document name	Sublime Security	1mo ago Mar 17th, 2026	Credential Phishing Free file host Evasion Content 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 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 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: URL fragment with hexadecimal pattern obfuscation	Sublime Security	2mo ago Jan 29th, 2026	Credential Phishing Evasion Content analysis URL analysis
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
Link: Webflow link from unsolicited sender	Sublime Security	8mo ago Aug 5th, 2025	Callback Phishing Free file host Free subdomain host Content analysis URL analysis Sender analysis
Link: WordPress admin targeting with recipient identifier in URL fragment	Sublime Security	9d ago Apr 16th, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis
Link: WordPress login page with Blogspot Binance scam	Sublime Security	2mo ago Feb 17th, 2026	Credential Phishing BEC/Fraud Social engineering Free subdomain host Impersonation: Brand Content analysis URL analysis
Link: Zoho form link from unsolicited sender	Sublime Security	8mo ago Aug 5th, 2025	Callback Phishing Free file host Content analysis URL analysis Sender analysis
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Evasion Free file host Free subdomain host HTML smuggling Impersonation: Brand Open redirect Social engineering Content analysis File analysis HTML analysis Javascript analysis Sender analysis URL analysis
Mass campaign: Cross Site Scripting (XSS) attempt	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Spam Exploit Free email provider Scripting Social engineering Content analysis Header analysis Sender analysis
Microsoft device code phishing	@ajpc500	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	6mo ago Oct 1st, 2025	Evasion Social engineering Archive analysis Content analysis File analysis Sender analysis
Notion suspicious file share	Sublime Security	9mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Content analysis Sender analysis URL analysis
Observed IOC: Malicious domains in body links	Sublime Security	11h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious root domains in body links	Sublime Security	11h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious URLs in body links	Sublime Security	11h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Open redirect: Cartoon Network	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Spam Open redirect Evasion Content analysis URL analysis
Open redirect: giving.lluh.org	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect (go2.aspx) leading to Microsoft credential phishing	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Open redirect Content analysis Header analysis URL analysis
Open Redirect: Google domain with /url path and suspicious indicators	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Evasion Open redirect Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Open redirect: Klaviyo	Sublime Security	2y ago May 14th, 2024	Credential Phishing Spam Evasion Impersonation: Brand Open redirect Social engineering Content analysis URL analysis
Open redirect: marketing.edinburghairport.com	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: next2.io	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: people.anuneo.com	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: slubnaglowie.pl	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: typedrawers.com	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect QR code Social engineering Content analysis File analysis QR code analysis Sender analysis
Outlook hyperlink bypass: left-to-right mark (LRM) in base HTML tag	Sublime Security	4mo ago Dec 10th, 2025	Credential Phishing Evasion Exploit Content analysis HTML analysis URL analysis
PayPal invoice abuse	Sublime Security	2mo ago Feb 11th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
PDF attachment with Google (AE) redirecting to a php or zip file	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Open redirect PDF Content analysis File analysis URL analysis
PhaaS: Impact Solutions (Impact Vector Suite)	Sublime Security	3mo ago Jan 23rd, 2026	Credential Phishing Evasion Content analysis
Potential prompt injection attack in body HTML	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam BEC/Fraud Evasion Social engineering Header analysis HTML analysis Content analysis
QR Code with suspicious indicators	Sublime Security	3d ago Apr 22nd, 2026	Credential Phishing QR code Social engineering Content analysis Header analysis Computer Vision Natural Language Understanding QR code analysis Sender analysis URL analysis
Reconnaissance: All recipients cc/bcc'd or undisclosed	Sublime Security	2mo ago Feb 5th, 2026	Reconnaissance Content analysis Header analysis Sender analysis
Reconnaissance: Email address harvesting attempt	Sublime Security	2mo ago Feb 23rd, 2026	BEC/Fraud Credential Phishing Spam Free email provider Social engineering Content analysis Header analysis Sender analysis URL analysis
Reconnaissance: Empty message from uncommon sender	Sublime Security	1mo ago Feb 25th, 2026	Spam Evasion Social engineering Content analysis Header analysis

522 Rules

Page 8 of 11