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 Jul 17th, 2025

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Advance Fee Fraud (AFF) from freemail provider or suspicious TLD	Sublime Security	4d ago Jul 16th, 2025	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/advance-fee-fraud-aff-from-freemail-provider-or-suspicious-tld-6a5af373
AnonymousFox Indicators	Sublime Security	1y ago Jul 19th, 2024	BEC/Fraud Credential Phishing Malware/Ransomware Header analysis Sender analysis	/feeds/core/detection-rules/anonymousfox-indicators-2506206e
Attachment: Callback Phishing solicitation via text-based file	Sublime Security	4d ago Jul 16th, 2025	Callback Phishing Evasion Out of band pivot Social engineering Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/attachment-callback-phishing-solicitation-via-text-based-file-ca39c83a
Attachment: DocuSign Impersonation (PDF) linking to New Domain <=3d	Sublime Security	1y ago Apr 25th, 2024	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-pdf-linking-to-new-domain-less3d-f0c96282
Attachment: Dropbox image lure with no Dropbox domains in links	Sublime Security	4d 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 file contains HTML attachment with login portal indicators	Sublime Security	2y ago Oct 19th, 2023	Credential Phishing Evasion HTML smuggling Content analysis File analysis Header analysis HTML analysis Javascript analysis Sender analysis	/feeds/core/detection-rules/attachment-eml-file-contains-html-attachment-with-login-portal-indicators-6e4df158
Attachment: EML file with HTML attachment (unsolicited)	Sublime Security	3mo ago Mar 28th, 2025	Credential Phishing Malware/Ransomware Evasion HTML smuggling Content analysis File analysis Header analysis HTML analysis Sender analysis	/feeds/core/detection-rules/attachment-eml-file-with-html-attachment-unsolicited-c24fd191
Attachment: EML with link to credential phishing page	Sublime Security	4d ago Jul 16th, 2025	Credential Phishing Evasion Free file host Free subdomain host Social engineering Computer Vision Content analysis File analysis Header analysis HTML analysis Natural Language Understanding Optical Character Recognition URL analysis URL screenshot	/feeds/core/detection-rules/attachment-eml-with-link-to-credential-phishing-page-1df41cca
Attachment: Fake secure message and suspicious indicators	Sublime Security	4d 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: HTML Smuggling Microsoft Sign In	Sublime Security	4d ago Jul 16th, 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 smuggling - QR Code with suspicious links	Sublime Security	4d ago Jul 16th, 2025	Credential Phishing QR code Computer Vision Header analysis Natural Language Understanding QR code analysis Sender analysis URL analysis URL screenshot	/feeds/core/detection-rules/attachment-html-smuggling-qr-code-with-suspicious-links-010e757d
Attachment: Legal Themed Message with PDF Containing Suspicious Link	Sublime Security	1mo ago Jun 6th, 2025	Credential Phishing Evasion PDF Social engineering Content analysis File analysis Header analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/attachment-legal-themed-message-with-pdf-containing-suspicious-link-19133301
Attachment: Microsoft 365 Credential Phishing	Sublime Security	4d 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-microsoft-365-credential-phishing-edce0229
Attachment: Microsoft impersonation via PDF with link and suspicious language	Sublime Security	4d 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: QR code with credential phishing indicators	Sublime Security	4d ago Jul 16th, 2025	Credential Phishing QR code Social engineering Computer Vision Header analysis Natural Language Understanding QR code analysis Sender analysis URL analysis URL screenshot	/feeds/core/detection-rules/attachment-qr-code-with-credential-phishing-indicators-9f1681e1
Attachment: RFC822 containing suspicious file sharing language with links from untrusted sender	Sublime Security	4d ago Jul 16th, 2025	Credential Phishing Evasion Social engineering File analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/attachment-rfc822-containing-suspicious-file-sharing-language-with-links-from-untrusted-sender-d96854d7
Attachment: USDA Bid Invitation Impersonation	Sublime Security	1mo ago May 23rd, 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 auto-executing macro (unsolicited)	Sublime Security	4d ago Jul 16th, 2025	Malware/Ransomware Macros Archive analysis Header analysis File analysis Macro analysis OLE analysis Sender analysis	/feeds/core/detection-rules/attachment-with-auto-executing-macro-unsolicited-af6624c3
BEC/Fraud: Generic Scam attempt to Undisclosed Receipients	Sublime Security	4d ago Jul 16th, 2025	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/becfraud-generic-scam-attempt-to-undisclosed-receipients-5dac401f
BEC/Fraud: Romance Scam	Sublime Security	4d ago Jul 16th, 2025	BEC/Fraud Free email provider Social engineering Content analysis Header analysis	/feeds/core/detection-rules/becfraud-romance-scam-0243cdaa
BEC/Fraud: Scam Lure with freemail pivot	Sublime Security	4d ago Jul 16th, 2025	BEC/Fraud Free email provider Out of band pivot Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/becfraud-scam-lure-with-freemail-pivot-898c769f
BEC/Fraud: Urgent Language and Suspicious Sending/Infrastructure Patterns	Sublime Security	4mo ago Mar 10th, 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
BEC with unusual Reply-to or Return-path mismatch	Sublime Security	10mo ago Aug 27th, 2024	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	4d ago Jul 16th, 2025	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
Brand impersonation: Adobe (QR code)	Sublime Security	4d ago Jul 16th, 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	11d ago Jul 9th, 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	2mo ago Apr 28th, 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	3mo ago Apr 18th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-amazon-13fc967d
Brand impersonation: Amazon with suspicious attachment	Sublime Security	4d 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	10d 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: Aramco	Sublime Security	9mo ago Oct 10th, 2024	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	4d ago Jul 16th, 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	4mo ago Feb 24th, 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	4d ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Natural Language Understanding Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-bookingcom-d1d8882f
Brand Impersonation: Capital One	Sublime Security	5mo ago Feb 20th, 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	1mo ago Jun 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	4d ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-chase-bank-c680f1e7
Brand impersonation: Coinbase	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-coinbase-3dca757a
Brand impersonation: Dashlane	Sublime Security	4d 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 Jun 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-dhl-be4b4ae0
Brand impersonation: Digital Ocean	Sublime Security	4d ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-digital-ocean-7f2f0e97
Brand Impersonation: DocSend	Sublime Security	10mo ago Sep 11th, 2024	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	1mo 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	12d ago Jul 8th, 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 (QR code)	Sublime Security	4d ago Jul 16th, 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	4d ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-doordash-b0aaaed5