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 Jun 8th, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Link: URL path containing /moni/index	Sublime Security	1mo ago Apr 24th, 2026	Credential Phishing Open redirect Evasion URL analysis
Link: URL redirecting to blob URL	Sublime Security	3mo 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	4mo 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	4mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis
Link: WordPress admin targeting with recipient identifier in URL fragment	Sublime Security	1mo ago Apr 16th, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	4mo 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
macOS malware: Compiled AppleScript with document double-extension	Sublime Security	4mo ago Feb 5th, 2026	Malware/Ransomware Evasion Social engineering File analysis Header analysis
Malformed URL prefix	Sublime Security	9mo ago Sep 4th, 2025	Credential Phishing Malware/Ransomware Evasion URL analysis
MalwareBazaar: Malicious attachment hash in archive (trusted reporters)	Sublime Security	1mo ago Apr 29th, 2026	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis Threat intelligence
Malware: Pikabot delivery via URL auto-download	Sublime Security	2y ago Apr 25th, 2024	Malware/Ransomware Evasion Archive analysis File analysis Threat intelligence URL analysis
Message traversed multiple onmicrosoft.com tenants	Sublime Security	4mo ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Free subdomain host Sender analysis Header analysis
Microsoft infrastructure abuse with suspicious patterns	Sublime Security	4mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Impersonation: Brand Social engineering Header analysis Sender analysis
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	1mo ago Apr 28th, 2026	Evasion ICS Phishing Social engineering Archive analysis Content analysis File analysis Sender analysis
Notion suspicious file share	Sublime Security	10mo 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	21d ago May 19th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious root domains in body links	Sublime Security	13d ago May 27th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious URLs in body links	Sublime Security	21d ago May 19th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Open redirect: Cartoon Network	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Spam Open redirect Evasion Content analysis URL analysis
Open redirect: giving.lluh.org	Sublime Security	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open Redirect: Google domain with /url path and suspicious indicators	Sublime Security	4d ago Jun 5th, 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: Mailtrack Korea	Sublime Security	5d ago Jun 4th, 2026	Credential Phishing BEC/Fraud Open redirect Evasion URL analysis
Open redirect: marketing.edinburghairport.com	Sublime Security	1y 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	1y 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	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: Shibboleth SSO Logout Return Parameter	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Open redirect Evasion HTML analysis URL analysis Sender analysis
Open redirect: slubnaglowie.pl	Sublime Security	1y 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	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect QR code Social engineering Content analysis File analysis QR code analysis Sender analysis
Open redirect: weblinkconnect.com	Sublime Security	10mo ago Aug 5th, 2025	Credential Phishing Evasion Open redirect Sender analysis URL analysis
Open redirect: Xfinity CMP Redirection to Google AMP	Sublime Security	10mo ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis
Outlook hyperlink bypass: left-to-right mark (LRM) in base HTML tag	Sublime Security	6mo ago Dec 10th, 2025	Credential Phishing Evasion Exploit Content analysis HTML analysis URL analysis
PayPal invoice abuse	Sublime Security	5d ago Jun 4th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
PhaaS: Impact Solutions (Impact Vector Suite)	Sublime Security	4mo ago Jan 23rd, 2026	Credential Phishing Evasion Content analysis
Potential prompt injection attack in body HTML	Sublime Security	4mo ago Jan 12th, 2026	Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam BEC/Fraud Evasion Social engineering Header analysis HTML analysis Content analysis
Punycode sender domain	Sublime Security	3y ago Aug 21st, 2023	Credential Phishing Malware/Ransomware Evasion Lookalike domain Punycode Social engineering Sender analysis
QR code to auto-download of a suspicious file type (unsolicited)	Sublime Security	7mo ago Oct 17th, 2025	Malware/Ransomware Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis QR code analysis
Reconnaissance: Empty message from uncommon sender	Sublime Security	3mo ago Feb 25th, 2026	Spam Evasion Social engineering Content analysis Header analysis
Reconnaissance: Empty subject with mismatched reply-to from new sender	Sublime Security	4mo ago Feb 6th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Spoofing Header analysis Sender analysis
Request for Quote or Purchase (RFQ\|RFP) with HTML smuggling attachment	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Evasion Content analysis File analysis HTML analysis Javascript analysis Natural Language Understanding URL analysis
Request for Quote or Purchase (RFQ\|RFP) with suspicious sender or recipient pattern	Sublime Security	1mo ago Apr 27th, 2026	BEC/Fraud Evasion Free email provider Content analysis Natural Language Understanding URL analysis
Salesforce infrastructure abuse	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Self-sender with copy/paste instructions and suspicious domains (French/Français)	Sublime Security	1mo ago Apr 16th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis Header analysis Sender analysis
Self-sent fake PDF attachment with misleading link	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis URL analysis Sender analysis
Sender: IP address in local part	Sublime Security	2mo ago Mar 12th, 2026	Spam Credential Phishing BEC/Fraud Evasion Spoofing Sender analysis
Sendgrid onmicrosoft.com domain phishing	@ajpc500	4mo ago Jan 12th, 2026	Credential Phishing Evasion Header analysis
Service abuse: Adobe Creative Cloud share from an unsolicited sender address	Sublime Security	7mo ago Oct 22nd, 2025	Credential Phishing Social engineering Free file host Evasion HTML analysis Sender analysis Header analysis
Service abuse: AppSheet infrastructure with suspicious indicators	Sublime Security	8mo ago Oct 6th, 2025	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis Whois
Service Abuse: Box file sharing with credential phishing intent	Sublime Security	4mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Callback Phishing Evasion Social engineering Impersonation: Employee Impersonation: VIP Content analysis Natural Language Understanding Sender analysis Header analysis
Service abuse: Cisco secure email service with financial request	Sublime Security	8mo ago Oct 1st, 2025	BEC/Fraud Impersonation: Brand Social engineering Evasion Content analysis Header analysis Natural Language Understanding Sender analysis
Service abuse: DocSend share from an unsolicited reply-to address	Sublime Security	3mo ago Mar 4th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis

414 Rules

Page 7 of 9