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 Jan 23rd, 2026

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Rule Name & Severity	Author	Last Updated	Labels
Brand impersonation: Evite	Sublime Security	11d 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	11d 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	1mo 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	2d ago Jan 21st, 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	11d 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	11d 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	6h 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	3mo 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	11d 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	2mo 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	4mo 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	2mo 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	1mo 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	11d 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 using Microsoft Forms	Sublime Security	11d 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	1mo 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	1mo 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	11d ago Jan 12th, 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	11d 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	11d 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: 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	11d 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	4mo 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: Meta and subsidiaries	Sublime Security	11d ago Jan 12th, 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	4mo 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	3mo ago Oct 9th, 2025	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	11d 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	1mo 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	11d ago Jan 12th, 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	11d 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	6mo 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	6mo 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 Dec 15th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-teams-invitation-46410ad8
Brand impersonation: Microsoft with embedded logo and credential theft language	Sublime Security	3mo ago Oct 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-with-embedded-logo-and-credential-theft-language-3ee9ef3d
Brand impersonation: Microsoft with low reputation links	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Free file host Image as content Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-with-low-reputation-links-b59201b6
Brand impersonation: Navan	Sublime Security	4mo ago Sep 22nd, 2025	Credential Phishing Impersonation: Brand Social engineering Spoofing Sender analysis Natural Language Understanding URL analysis Content analysis	/feeds/core/detection-rules/brand-impersonation-navan-3573e9a8
Brand impersonation: Netflix	min0k	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-netflix-9f39eea5
Brand impersonation: Norton	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Free email provider Impersonation: Brand Social engineering Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-norton-32bd9efd
Brand impersonation: Office 365 mail service	Sublime Security	3mo ago Oct 10th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Sender analysis	/feeds/core/detection-rules/brand-impersonation-office-365-mail-service-51af3d4a
Brand impersonation: Okta	Sublime Security	4mo ago Sep 23rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-okta-b7a2989a
Brand impersonation: Outlook	Sublime Security	2y ago May 29th, 2024	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-outlook-1fe5bf7b
Brand Impersonation: PayPal	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-paypal-a6b2ceee
Brand impersonation: PNC	Sublime Security	3mo ago Oct 9th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-pnc-1b5ae4fb
Brand Impersonation: Procore	Sublime Security	4mo ago Sep 3rd, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-procore-74baa1e5
Brand impersonation: Proofpoint secure messaging without legitimate indicators	Sublime Security	2mo ago Nov 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-proofpoint-secure-messaging-without-legitimate-indicators-84b72d02
Brand impersonation: Punchbowl	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-punchbowl-58937ba0

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