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

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
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: 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: Shibboleth SSO Logout Return Parameter	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Open redirect Evasion HTML analysis URL analysis Sender 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
Open redirect: weblinkconnect.com	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Evasion Open redirect Sender analysis URL analysis
Open redirect: Xfinity CMP Redirection to Google AMP	Sublime Security	8mo 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	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
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
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	6mo 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	1mo ago Feb 25th, 2026	Spam Evasion Social engineering Content analysis Header analysis
Reconnaissance: Empty subject with mismatched reply-to from new sender	Sublime Security	2mo 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	3mo 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 Mar 9th, 2026	BEC/Fraud Evasion Free email provider Content analysis Natural Language Understanding URL analysis
Salesforce infrastructure abuse	Sublime Security	3mo 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	9d 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	3mo 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	1mo ago Mar 12th, 2026	Spam Credential Phishing BEC/Fraud Evasion Spoofing Sender analysis
Sendgrid onmicrosoft.com domain phishing	@ajpc500	3mo ago Jan 12th, 2026	Credential Phishing Evasion Header analysis
Service abuse: Adobe Creative Cloud share from an unsolicited sender address	Sublime Security	6mo 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	6mo 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	3mo 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	6mo 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	1mo ago Mar 4th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis
Service abuse: DocSend share from newly registered domain	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Evasion Free file host Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis
Service abuse: DocuSign notification with suspicious sender or document name	Sublime Security	8mo ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: DocuSign share from an unsolicited reply-to address	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis
Service abuse: Domains By Proxy sender	Sublime Security	1mo ago Mar 18th, 2026	Spam Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Service abuse: Dropbox share from an unsolicited reply-to address	Sublime Security	8mo ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: Dropbox share from new domain	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Credential Phishing BEC/Fraud Evasion Social engineering Content analysis Sender analysis Header analysis
Service abuse: Dropbox share with suspicious sender or document name	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service Abuse: ExactTarget with suspicious sender indicators	Sublime Security	5mo ago Nov 8th, 2025	Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Service abuse: FlipHTML5 with attachment deception and credential theft language	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Social engineering Free file host Evasion Content analysis Natural Language Understanding URL analysis
Service abuse: Free provider with SendGrid routing	Sublime Security	3mo ago Jan 8th, 2026	Credential Phishing Free email provider Evasion Header analysis Sender analysis
Service Abuse: GoDaddy infrastructure	Sublime Security	3mo ago Jan 7th, 2026	Callback Phishing Extortion Evasion Natural Language Understanding Content analysis
Service abuse: Google application integration redirecting to suspicious hosts	Sublime Security	4mo ago Dec 17th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Free subdomain host Open redirect Header analysis Sender analysis URL analysis
Service abuse: Google OAuth with suspicious redirect destination	Sublime Security	1mo ago Mar 12th, 2026	Credential Phishing Evasion Free file host Free subdomain host Open redirect Social engineering URL analysis Threat intelligence
Service abuse: HelloSign from an unsolicited sender address	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Social engineering Free file host Evasion HTML analysis Sender analysis Header analysis
Service Abuse: HelloSign share with suspicious sender or document name	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: HungerRush domain with SendGrid tracking targeting ProtonMail	Sublime Security	1mo ago Mar 4th, 2026	BEC/Fraud Evasion Sender analysis HTML analysis Content analysis
Service abuse: Meetup.com redirect with brand impersonation	Sublime Security	10d ago Apr 15th, 2026	Credential Phishing Open redirect Impersonation: Brand Evasion URL analysis HTML analysis Content analysis Sender analysis
Service abuse: Mimecast URL with excessive path length	Sublime Security	17d ago Apr 8th, 2026	Credential Phishing Malware/Ransomware Evasion Open redirect URL analysis
Service abuse: Monday.com infrastructure with phishing intent	Sublime Security	1mo ago Mar 9th, 2026	Credential Phishing Evasion Social engineering QR code Content analysis File analysis Header analysis QR code analysis Sender analysis URL analysis

392 Rules

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