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
Attachment: USDA bid invitation impersonation	Sublime Security	5mo ago Aug 5th, 2025	BEC/Fraud Impersonation: Brand PDF Macros Social engineering Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/attachment-usda-bid-invitation-impersonation-34eb9493
Attachment with VBA macros from employee impersonation (unsolicited)	Sublime Security	11d ago Jan 12th, 2026	Malware/Ransomware Impersonation: Employee Macros Social engineering Archive analysis File analysis Macro analysis Sender analysis	/feeds/core/detection-rules/attachment-with-vba-macros-from-employee-impersonation-unsolicited-9b262123
BEC: Employee impersonation with subject manipulation	Sublime Security	7d ago Jan 16th, 2026	BEC/Fraud Impersonation: Employee Social engineering Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/bec-employee-impersonation-with-subject-manipulation-9adfc77b
BEC/Fraud: Generic scam attempt to undisclosed recipients	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/becfraud-generic-scam-attempt-to-undisclosed-recipients-5dac401f
BEC/Fraud: Penpal scam	Sublime Security	5mo ago Aug 5th, 2025	BEC/Fraud Free email provider Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/becfraud-penpal-scam-a4bdfa17
BEC/Fraud: Romance scam	Sublime Security	1d ago Jan 22nd, 2026	BEC/Fraud Free email provider Social engineering Content analysis Header analysis	/feeds/core/detection-rules/becfraud-romance-scam-0243cdaa
BEC/Fraud: Student loan callback phishing	Sublime Security	4mo ago Sep 5th, 2025	BEC/Fraud Free email provider Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/becfraud-student-loan-callback-phishing-a71f82c3
BEC/Fraud: Urgent language and suspicious sending/infrastructure patterns	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Callback Phishing Spam Impersonation: Brand Social engineering Free email provider Content analysis Header analysis Sender analysis Whois	/feeds/core/detection-rules/becfraud-urgent-language-and-suspicious-sendinginfrastructure-patterns-ba8a79e0
BEC with unusual reply-to or return-path mismatch	Sublime Security	5mo ago Aug 5th, 2025	BEC/Fraud Evasion Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/bec-with-unusual-reply-to-or-return-path-mismatch-83e5e2df
Benefits enrollment impersonation	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Evasion Impersonation: Employee Out of band pivot Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/benefits-enrollment-impersonation-5a6eb5a8
Body: Embedded email headers indicative of thread hijacking/abuse	Sublime Security	1mo ago Dec 1st, 2025	Credential Phishing BEC/Fraud Spam Evasion Social engineering Spoofing Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/body-embedded-email-headers-indicative-of-thread-hijackingabuse-6e8eeebb
Body HTML: Recipient SLD in HTML class	Sublime Security	4mo ago Sep 23rd, 2025	Credential Phishing Evasion Social engineering HTML analysis Header analysis Sender analysis	/feeds/core/detection-rules/body-html-recipient-sld-in-html-class-d395e41d
Brand impersonation: AARP	Sublime Security	1mo ago Dec 1st, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-aarp-561a7f87
Brand impersonation: Adobe Sign with suspicious indicators	Sublime Security	15d ago Jan 8th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-adobe-sign-with-suspicious-indicators-704d143a
Brand impersonation: Adobe with suspicious language and link	Sublime Security	2mo ago Nov 24th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-adobe-with-suspicious-language-and-link-32cc8bf1
Brand impersonation: ADP	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-adp-bb9cf46b
Brand impersonation: AliExpress	Sublime Security	5mo ago Aug 5th, 2025	Callback Phishing Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-aliexpress-b14703d8
Brand impersonation: Amazon	Sublime Security	2mo ago Nov 4th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-amazon-13fc967d
Brand impersonation: Amazon Web Services (AWS)	Sublime Security	3mo ago Oct 10th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Optical Character Recognition Sender analysis Natural Language Understanding	/feeds/core/detection-rules/brand-impersonation-amazon-web-services-aws-31de94e0
Brand impersonation: Amazon with suspicious attachment	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-amazon-with-suspicious-attachment-5751dcb9
Brand impersonation: American Express (AMEX)	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-american-express-amex-992a9fa9
Brand impersonation: Apple	Sublime Security	3y ago Aug 21st, 2023	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-apple-0b17f2c2
Brand impersonation: Aquent	Sublime Security	3mo ago Oct 9th, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-aquent-5074459c
Brand impersonation: Aramco	Sublime Security	2mo ago Nov 20th, 2025	BEC/Fraud Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-aramco-96e87699
Brand impersonation: AuthentiSign	Sublime Security	2d ago Jan 21st, 2026	Credential Phishing BEC/Fraud Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-authentisign-445a8c8b
Brand impersonation: Bank of America	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-bank-of-america-d2fc6ea1
Brand impersonation: Barracuda Networks	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-barracuda-networks-583fd5eb
Brand impersonation: Binance	Sublime Security	4mo ago Sep 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-binance-c3302a76
Brand impersonation: Blockchain[.]com	Sublime Security	2d ago Jan 21st, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-blockchaincom-0d85e555
Brand impersonation: Booking.com	Sublime Security	2mo ago Nov 3rd, 2025	Credential Phishing Impersonation: Brand Social engineering Natural Language Understanding Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-bookingcom-d1d8882f
Brand impersonation: Box file sharing service	Sublime Security	4mo ago Sep 23rd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-box-file-sharing-service-03da310c
Brand impersonation: Capital One	Sublime Security	2mo ago Nov 17th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Sender analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-capital-one-d53848e4
Brand impersonation: Charles Schwab	Sublime Security	4mo ago Sep 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-charles-schwab-7abde595
Brand impersonation: Chase Bank	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-chase-bank-c680f1e7
Brand impersonation: Chase bank with credential phishing indicators	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision File analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-chase-bank-with-credential-phishing-indicators-d9577856
Brand impersonation: Coinbase	Sublime Security	2mo ago Nov 4th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-coinbase-3dca757a
Brand impersonation: Dashlane	Sublime Security	6mo ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-dashlane-9e400937
Brand impersonation: DHL	Sublime Security	1mo ago Dec 1st, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-dhl-be4b4ae0
Brand impersonation: DigitalOcean	Sublime Security	4mo ago Sep 18th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-digitalocean-7f2f0e97
Brand impersonation: Discord notification	Sublime Security	3mo ago Oct 23rd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis	/feeds/core/detection-rules/brand-impersonation-discord-notification-97007826
Brand Impersonation: Disney	Sublime Security	11d ago Jan 12th, 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	5mo 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	11d ago Jan 12th, 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	3mo 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	3mo 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	3mo 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	11d 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	6mo 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	1d ago Jan 22nd, 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	12mo 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

467 Rules

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