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 Nov 12th, 2025

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Adobe branded PDF file linking to a password-protected file from untrusted sender	Sublime Security	3mo ago Jul 16th, 2025	Malware/Ransomware Encryption Evasion Impersonation: Brand PDF Archive analysis File analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/adobe-branded-pdf-file-linking-to-a-password-protected-file-from-untrusted-sender-5ea75469
Attachment: Adobe image lure in body or attachment with suspicious link	Sublime Security	1mo ago Sep 22nd, 2025	Credential Phishing Image as content Impersonation: Brand Content analysis Computer Vision Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/attachment-adobe-image-lure-in-body-or-attachment-with-suspicious-link-1d7add81
Attachment: Decoy PDF author (Julie P.)	Sublime Security	3mo ago Aug 5th, 2025	Credential Phishing Impersonation: Brand PDF File analysis Content analysis Sender analysis	/feeds/core/detection-rules/attachment-decoy-pdf-author-julie-p-4324213a
Attachment: DocuSign impersonation via PDF linking to new domain	Sublime Security	3mo ago Aug 5th, 2025	Credential Phishing Impersonation: Brand PDF Social engineering Header analysis Sender analysis URL analysis File analysis Computer Vision Whois	/feeds/core/detection-rules/attachment-docusign-impersonation-via-pdf-linking-to-new-domain-f0c96282
Attachment: Dropbox image lure with no Dropbox domains in links	Sublime Security	3mo ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Optical Character Recognition Sender analysis	/feeds/core/detection-rules/attachment-dropbox-image-lure-with-no-dropbox-domains-in-links-500eee2d
Attachment: EML with SharePoint files shared from GoDaddy federated tenants	Sublime Security	1mo ago Sep 23rd, 2025	Credential Phishing Evasion Impersonation: Brand Social engineering File analysis URL analysis Content analysis	/feeds/core/detection-rules/attachment-eml-with-sharepoint-files-shared-from-godaddy-federated-tenants-02c1f590
Attachment: EML with Sharepoint link likely unrelated to sender	Sublime Security	1mo ago Sep 23rd, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Evasion File analysis URL analysis Header analysis Sender analysis	/feeds/core/detection-rules/attachment-eml-with-sharepoint-link-likely-unrelated-to-sender-0a4fd31b
Attachment: Fake secure message and suspicious indicators	Sublime Security	3mo ago Jul 16th, 2025	Credential Phishing Image as content Impersonation: Brand Social engineering Content analysis File analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/attachment-fake-secure-message-and-suspicious-indicators-20a34d94
Attachment: Fake Slack installer	Sublime Security	2y ago Nov 29th, 2023	Malware/Ransomware Evasion HTML smuggling Impersonation: Brand Scripting Social engineering Archive analysis Computer Vision File analysis HTML analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/attachment-fake-slack-installer-cded2d2f
Attachment: Fake Zoom installer	Sublime Security	2y ago Nov 29th, 2023	Malware/Ransomware Evasion HTML smuggling Impersonation: Brand Scripting Social engineering Archive analysis Computer Vision File analysis HTML analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/attachment-fake-zoom-installer-840a12a6
Attachment: HTML smuggling Microsoft sign in	Sublime Security	3mo ago Aug 5th, 2025	Credential Phishing Free subdomain host HTML smuggling Impersonation: Brand Social engineering Archive analysis Content analysis File analysis Header analysis Javascript analysis Sender analysis URL analysis	/feeds/core/detection-rules/attachment-html-smuggling-microsoft-sign-in-878d6385
Attachment: HTML with emoji-to-character map	Sublime Security	3mo ago Aug 5th, 2025	Credential Phishing Evasion HTML smuggling Impersonation: Brand Scripting Social engineering File analysis HTML analysis Javascript analysis Sender analysis	/feeds/core/detection-rules/attachment-html-with-emoji-to-character-map-3119d086
Attachment: Microsoft 365 credential phishing	Sublime Security	3mo ago Aug 5th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Optical Character Recognition Sender analysis	/feeds/core/detection-rules/attachment-microsoft-365-credential-phishing-edce0229
Attachment: Microsoft impersonation via PDF with link and suspicious language	Sublime Security	3mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Image as content Impersonation: Brand PDF Scripting Social engineering Computer Vision File analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/attachment-microsoft-impersonation-via-pdf-with-link-and-suspicious-language-70d41c7f
Attachment: PDF file with link to fake Bitcoin exchange	Sublime Security	3mo ago Aug 5th, 2025	BEC/Fraud Free email provider Impersonation: Brand PDF Social engineering Exif analysis File analysis Sender analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-file-with-link-to-fake-bitcoin-exchange-47601cb7
Attachment: PDF with Microsoft Purview message impersonation	Sublime Security	2d ago Nov 10th, 2025	Credential Phishing Impersonation: Brand PDF Social engineering File analysis Natural Language Understanding Content analysis	/feeds/core/detection-rules/attachment-pdf-with-microsoft-purview-message-impersonation-571d4964
Attachment: RFP/RFQ impersonating government entities	Sublime Security	1y ago Jan 30th, 2024	BEC/Fraud Impersonation: Brand PDF Social engineering Content analysis File analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/attachment-rfprfq-impersonating-government-entities-3b73e3b3
Attachment: USDA bid invitation impersonation	Sublime Security	3mo 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
BEC/Fraud: Urgent language and suspicious sending/infrastructure patterns	Sublime Security	3mo ago Aug 5th, 2025	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
Brand impersonation: Adobe (QR code)	Sublime Security	1mo ago Oct 3rd, 2025	Credential Phishing Impersonation: Brand PDF QR code Computer Vision Header analysis QR code analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-adobe-qr-code-2fc36c6d
Brand impersonation: Adobe with suspicious language and link	Sublime Security	26d ago Oct 17th, 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	1y ago Jan 9th, 2024	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-adp-bb9cf46b
Brand impersonation: AliExpress	Sublime Security	3mo 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	8d 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	1mo 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	3mo ago Jul 16th, 2025	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	4mo ago Jul 10th, 2025	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	2y 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	1mo 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	1mo ago Sep 15th, 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: Bank of America	Sublime Security	1y ago Jun 14th, 2024	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	1mo ago Sep 26th, 2025	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	2mo 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	1y ago Apr 23rd, 2024	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	9d 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	1mo 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	1mo ago Oct 3rd, 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	2mo 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	1mo ago Sep 22nd, 2025	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	1mo ago Sep 22nd, 2025	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	8d 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: Coinbase with suspicious links	Sublime Security	1mo ago Sep 22nd, 2025	Credential Phishing Evasion Free subdomain host Image as content Impersonation: Brand Computer Vision Content analysis File analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-coinbase-with-suspicious-links-b61e2f8e
Brand impersonation: Dashlane	Sublime Security	3mo 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	26d ago Oct 17th, 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	1mo 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	20d 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	1mo 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-disney-bf90b8fb
Brand impersonation: DocSend	Sublime Security	3mo 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	5mo ago May 21st, 2025	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	21d 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