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 Mar 9th, 2026

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GitHub

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Rule Name & Severity	Author	Last Updated	Labels
Brand Impersonation: Disney	Sublime Security	6d ago Mar 4th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Natural Language Understanding Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-disney-bf90b8fb
Brand impersonation: DocSend	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-docsend-cd9a3f7a
Brand impersonation: DocuSign	Sublime Security	14d ago Feb 24th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Spoofing Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-docusign-4d29235c
Brand impersonation: DocuSign branded attachment lure with no DocuSign links	Sublime Security	4mo ago Oct 22nd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL screenshot	/feeds/core/detection-rules/brand-impersonation-docusign-branded-attachment-lure-with-no-docusign-links-814a5694
Brand impersonation: DocuSign PDF attachment with suspicious link	Sublime Security	4mo ago Oct 22nd, 2025	Credential Phishing Impersonation: Brand PDF Social engineering File analysis Natural Language Understanding Optical Character Recognition URL analysis	/feeds/core/detection-rules/brand-impersonation-docusign-pdf-attachment-with-suspicious-link-2601cbb7
Brand impersonation: DocuSign (QR code)	Sublime Security	4mo ago Oct 15th, 2025	Credential Phishing Impersonation: Brand PDF QR code Social engineering Computer Vision Header analysis QR code analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-docusign-qr-code-0b16c28a
Brand impersonation: DoorDash	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-doordash-b0aaaed5
Brand impersonation: Dotloop	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-dotloop-f997581a
Brand impersonation: Dropbox	Sublime Security	26d ago Feb 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-dropbox-61f11d12
Brand impersonation: Enbridge	Sublime Security	1y ago Jan 24th, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-enbridge-203a6a28
Brand impersonation: Evite	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-evite-9e867a2b
Brand impersonation: Exodus	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-exodus-40c77ecc
Brand impersonation: Fake DocuSign HTML table not linking to DocuSign domains	Sublime Security	2mo ago Dec 10th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis HTML analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-fake-docusign-html-table-not-linking-to-docusign-domains-28923dde
Brand impersonation: Fake Fax	Sublime Security	1mo ago Feb 5th, 2026	Credential Phishing Impersonation: Brand Image as content Free file host Free subdomain host Social engineering Computer Vision Content analysis Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-fake-fax-2a96b90a
Brand impersonation: Fastway	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Sender analysis	/feeds/core/detection-rules/brand-impersonation-fastway-0170dbf2
Brand impersonation: FedEx	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-fedex-94a2b602
Brand impersonation: File sharing notification with template artifacts	Sublime Security	1mo ago Jan 23rd, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion HTML analysis Computer Vision Content analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-file-sharing-notification-with-template-artifacts-37d89611
Brand impersonation: FINRA	Sublime Security	5mo ago Oct 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-finra-15c81db4
Brand Impersonation: Gemini Trust Company	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis URL analysis Sender analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-gemini-trust-company-99574c94
Brand impersonation: Github	Sublime Security	4mo ago Nov 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-github-9402f92b
Brand impersonation: GoDaddy	Sublime Security	5mo ago Sep 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-godaddy-4130d555
Brand impersonation: Google Careers	Sublime Security	3mo ago Nov 12th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-google-careers-cf2d97ad
Brand impersonation: Google Drive fake file share	Sublime Security	2mo ago Dec 19th, 2025	Credential Phishing Malware/Ransomware Impersonation: Brand Social engineering Content analysis Header analysis URL analysis Computer Vision	/feeds/core/detection-rules/brand-impersonation-google-drive-fake-file-share-b424a941
Brand impersonation: Google fake sign-in warning	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-google-fake-sign-in-warning-2d998eee
Brand impersonation: Google Meet with malicious link	Sublime Security	26d ago Feb 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-google-meet-with-malicious-link-d488d85a
Brand impersonation: Google using Microsoft Forms	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-google-using-microsoft-forms-1daac608
Brand impersonation: Google Workspace alert notification	Sublime Security	3mo ago Dec 2nd, 2025	Credential Phishing Impersonation: Brand Social engineering Lookalike domain Header analysis Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-google-workspace-alert-notification-143ffbc4
Brand impersonation: Greenvelope	Sublime Security	3mo ago Dec 1st, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-greenvelope-9cbbf9b8
Brand impersonation: Gusto	Sublime Security	20d ago Feb 18th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-gusto-54025c1c
Brand impersonation: Hulu	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Spam Free email provider Impersonation: Brand Lookalike domain Social engineering Computer Vision Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-hulu-6833de58
Brand impersonation: Interac	Sublime Security	2y ago Sep 16th, 2024	BEC/Fraud Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-interac-50a883dc
Brand impersonation: Internal Revenue Service	Sublime Security	1mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-internal-revenue-service-3c63f8e9
Brand impersonation: KnowBe4	Sublime Security	2y ago Nov 25th, 2024	Credential Phishing Spam Free email provider Impersonation: Brand Lookalike domain Social engineering Computer Vision Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-knowbe4-7c798386
Brand impersonation: LastPass	Sublime Security	5d ago Mar 5th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-lastpass-99831d35
Brand impersonation: Ledger	Sublime Security	1y ago Jan 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-ledger-5f934755
Brand impersonation: LinkedIn	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-linkedin-1a0cde6d
Brand impersonation: Mailchimp	Sublime Security	5mo ago Sep 22nd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Natural Language Understanding Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-mailchimp-48b454c7
Brand impersonation: Marriott with gift language	Sublime Security	1mo ago Feb 2nd, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-marriott-with-gift-language-39b32b97
Brand impersonation: Meta and subsidiaries	Sublime Security	15d ago Feb 23rd, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-meta-and-subsidiaries-e38f1e3b
Brand impersonation: MetaMask	Sublime Security	5mo ago Sep 22nd, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Computer Vision Natural Language Understanding Sender analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-metamask-ddb4c618
Brand impersonation: Microsoft	@amitchell516	1mo ago Feb 3rd, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-6e2f04e6
Brand impersonation: Microsoft fake sign-in alert	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Header analysis Sender analysis Whois	/feeds/core/detection-rules/brand-impersonation-microsoft-fake-sign-in-alert-3f4c9e7a
Brand impersonation: Microsoft logo in HTML with fake quarantine release notification	Sublime Security	2mo ago Dec 10th, 2025	Credential Phishing Evasion Impersonation: Brand Social engineering Content analysis HTML analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-logo-in-html-with-fake-quarantine-release-notification-f12c615c
Brand impersonation: Microsoft logo or suspicious language with open redirect	Sublime Security	2y ago Mar 7th, 2024	BEC/Fraud Impersonation: Brand Open redirect Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-logo-or-suspicious-language-with-open-redirect-27b8d8d8
Brand impersonation: Microsoft Planner with suspicious link	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Evasion Image as content Impersonation: Brand Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-planner-with-suspicious-link-ea363c08
Brand impersonation: Microsoft (QR code)	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand PDF QR code Social engineering Computer Vision Header analysis QR code analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-qr-code-ed0f772a
Brand impersonation: Microsoft quarantine release notification in body	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-quarantine-release-notification-in-body-6d19527c
Brand impersonation: Microsoft quarantine release notification in image attachment	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Free file host Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-quarantine-release-notification-in-image-attachment-185db6b3
Brand impersonation: Microsoft Teams	Sublime Security	2y ago Dec 3rd, 2024	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-teams-9cd53055
Brand impersonation: Microsoft Teams invitation	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-teams-invitation-46410ad8

510 Rules

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