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

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Impersonation: Suspected supplier impersonation with suspicious content	Sublime Security	11mo ago Feb 3rd, 2025	BEC/Fraud Evasion Free email provider Lookalike domain Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis Whois	/feeds/core/detection-rules/impersonation-suspected-supplier-impersonation-with-suspicious-content-63d8b1ce
Inline image as message with attachment or link	Sublime Security	6mo ago Jul 16th, 2025	Credential Phishing Evasion Image as content Content analysis HTML analysis URL analysis	/feeds/core/detection-rules/inline-image-as-message-with-attachment-or-link-823d7107
Issuu document with suspicious embedded link	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Social engineering Free file host Evasion URL analysis URL screenshot Natural Language Understanding Optical Character Recognition	/feeds/core/detection-rules/issuu-document-with-suspicious-embedded-link-0d73f43d
Link: Abused Adobe Express	Sublime Security	6mo ago Jul 23rd, 2025	Credential Phishing Evasion Free subdomain host Free file host Content analysis Sender analysis URL analysis Whois HTML analysis	/feeds/core/detection-rules/link-abused-adobe-express-c7d17bfd
Link abuse: Self-service creation platform link with suspicious recipient behavior	Sublime Security	1mo ago Dec 2nd, 2025	BEC/Fraud Credential Phishing Spam Free email provider Social engineering Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-abuse-self-service-creation-platform-link-with-suspicious-recipient-behavior-384ad135
Link: Adobe share with suspicious indicators	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Evasion Free file host Content analysis URL screenshot Sender analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/link-adobe-share-with-suspicious-indicators-b33cae80
Link: Apple App Store malicious ad manager themed apps from free email provider	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing BEC/Fraud Malware/Ransomware Free email provider Social engineering Evasion Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-apple-app-store-malicious-ad-manager-themed-apps-from-free-email-provider-9ce402c6
Link: Apple TestFlight from free email provider	Sublime Security	3mo ago Oct 17th, 2025	Credential Phishing Free email provider Evasion Sender analysis URL analysis	/feeds/core/detection-rules/link-apple-testflight-from-free-email-provider-9b447f1f
Link: Base64 encoded recipient address in URL fragment with subject hash	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Encryption Evasion Social engineering Content analysis URL analysis Header analysis	/feeds/core/detection-rules/link-base64-encoded-recipient-address-in-url-fragment-with-subject-hash-eb9694b8
Link: Breely link masquerading as PDF	Sublime Security	7d ago Jan 16th, 2026	BEC/Fraud Credential Phishing Free subdomain host Social engineering Content analysis URL analysis	/feeds/core/detection-rules/link-breely-link-masquerading-as-pdf-4a498c21
Link: chatbot.page platform abuse	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Social engineering Out of band pivot URL analysis Natural Language Understanding Content analysis HTML analysis Javascript analysis URL screenshot	/feeds/core/detection-rules/link-chatbotpage-platform-abuse-bfd6a076
Link: Common hidden directory observed	Sublime Security	10d ago Jan 13th, 2026	Credential Phishing Evasion URL analysis HTML analysis	/feeds/core/detection-rules/link-common-hidden-directory-observed-9f316da6
Link: Credential phishing traversing Russian infrastructure	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/link-credential-phishing-traversing-russian-infrastructure-a5203e3b
Link: Credential phishing via WordPress	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Social engineering Free subdomain host URL analysis Header analysis Computer Vision	/feeds/core/detection-rules/link-credential-phishing-via-wordpress-db696058
Link: Cryptocurrency fraud with suspicious links	Sublime Security	1mo ago Dec 1st, 2025	BEC/Fraud Social engineering Evasion Free subdomain host Scripting Content analysis Header analysis Javascript analysis Natural Language Understanding Sender analysis URL analysis URL screenshot Whois	/feeds/core/detection-rules/link-cryptocurrency-fraud-with-suspicious-links-d0da37ce
Link: CVE-2024-21413 Microsoft Outlook Remote Code Execution Vulnerability	Sublime Security	2y ago Feb 15th, 2024	Malware/Ransomware Evasion Exploit URL analysis	/feeds/core/detection-rules/link-cve-2024-21413-microsoft-outlook-remote-code-execution-vulnerability-e8151426
Link: Direct link to gamma.app document with mode parameter	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Malware/Ransomware Free file host Evasion URL analysis	/feeds/core/detection-rules/link-direct-link-to-gammaapp-document-with-mode-parameter-080ab581
Link: Direct link to keap.app contact-us page	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Malware/Ransomware Free file host Evasion URL analysis	/feeds/core/detection-rules/link-direct-link-to-keapapp-contact-us-page-a7a69267
Link: Direct link to limewire hosted file	Sublime Security	5mo ago Aug 18th, 2025	Malware/Ransomware Free file host URL analysis Content analysis	/feeds/core/detection-rules/link-direct-link-to-limewire-hosted-file-70840d00
Link: Direct link to riddle.com hosted showcase	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Free file host Sender analysis URL analysis Header analysis	/feeds/core/detection-rules/link-direct-link-to-riddlecom-hosted-showcase-cca7d2f5
Link: Direct link to Zoom Docs from non-Zoom sender	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Social engineering Impersonation: Brand Header analysis URL analysis Sender analysis	/feeds/core/detection-rules/link-direct-link-to-zoom-docs-from-non-zoom-sender-5c6362db
Link: Direct POWR.io Form Builder with suspicious patterns	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Callback Phishing Social engineering File analysis URL analysis Content analysis	/feeds/core/detection-rules/link-direct-powrio-form-builder-with-suspicious-patterns-fd37cc93
Link: Display text matches subject line	Sublime Security	2mo ago Nov 14th, 2025	BEC/Fraud Credential Phishing Social engineering Evasion Header analysis Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/link-display-text-matches-subject-line-ba722cf0
Link: Display text with excessive right-to-left mark characters	Sublime Security	2d ago Jan 21st, 2026	Credential Phishing Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-display-text-with-excessive-right-to-left-mark-characters-a45cfd4c
Link: Excessive URL rewrite encoders	Sublime Security	2d ago Jan 21st, 2026	Credential Phishing Malware/Ransomware Encryption Evasion URL analysis Content analysis	/feeds/core/detection-rules/link-excessive-url-rewrite-encoders-b88e53a7
Link: Executable file download with suspicious message content	Sublime Security	3mo ago Oct 16th, 2025	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis	/feeds/core/detection-rules/link-executable-file-download-with-suspicious-message-content-ce9a4926
Link: Figma design deck with credential theft language	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Evasion Free file host Social engineering Natural Language Understanding Computer Vision Optical Character Recognition URL analysis URL screenshot Sender analysis	/feeds/core/detection-rules/link-figma-design-deck-with-credential-theft-language-87601924
Link: File sharing impersonation with suspicious language and sending patterns	Sublime Security	2mo ago Oct 31st, 2025	BEC/Fraud Credential Phishing Social engineering Free subdomain host Impersonation: Brand Natural Language Understanding URL analysis Sender analysis Header analysis Content analysis	/feeds/core/detection-rules/link-file-sharing-impersonation-with-suspicious-language-and-sending-patterns-d3363041
Link: File sharing pretext with suspicious body and link	Sublime Security	3mo ago Oct 10th, 2025	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis HTML analysis	/feeds/core/detection-rules/link-file-sharing-pretext-with-suspicious-body-and-link-c5718a8e
Link: Flagged bit.ly link	Sublime Security	6mo ago Jul 16th, 2025	Credential Phishing Evasion URL analysis	/feeds/core/detection-rules/link-flagged-bitly-link-1528eb6c
Link: Free file hosting with undisclosed recipients	Sublime Security	4mo ago Sep 11th, 2025	Credential Phishing Malware/Ransomware Free file host Free subdomain host Evasion Header analysis URL analysis Sender analysis Natural Language Understanding	/feeds/core/detection-rules/link-free-file-hosting-with-undisclosed-recipients-b6281306
Link: Free subdomain host with undisclosed recipients	Sublime Security	11d ago Jan 12th, 2026	Free subdomain host Header analysis URL analysis	/feeds/core/detection-rules/link-free-subdomain-host-with-undisclosed-recipients-c23d979d
Link: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	6mo ago Jul 16th, 2025	Spam Free email provider Free file host Open redirect Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-google-calendar-invite-linking-to-an-open-redirect-from-an-untrusted-freemail-sender-bb4f1ea9
Link: Google Firebase dynamic link that redirects to new domain (<7 days old)	@ajpc500	11d ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis Whois	/feeds/core/detection-rules/link-google-firebase-dynamic-link-that-redirects-to-new-domain-less7-days-old-5a204a37
Link: Google Translate (unsolicited)	@ajpc500	11d ago Jan 12th, 2026	Credential Phishing Open redirect Sender analysis URL analysis	/feeds/core/detection-rules/link-google-translate-unsolicited-6949e115
Link: GoPhish query param values	Sublime Security	18d ago Jan 5th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis	/feeds/core/detection-rules/link-gophish-query-param-values-6d2b9c8a
Link: HR impersonation with suspicious domain indicators and credential theft	Sublime Security	1mo ago Dec 3rd, 2025	Credential Phishing Impersonation: Employee Social engineering Lookalike domain Content analysis Natural Language Understanding Computer Vision URL analysis URL screenshot	/feeds/core/detection-rules/link-hr-impersonation-with-suspicious-domain-indicators-and-credential-theft-f31f8831
Link: /index.php enclosed in three asterisks	Sublime Security	11d ago Jan 12th, 2026	Malware/Ransomware Callback Phishing Social engineering Content analysis URL analysis	/feeds/core/detection-rules/link-indexphp-enclosed-in-three-asterisks-aa4bbafc
Link: Intuit link abuse with file share context	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering URL analysis Natural Language Understanding Content analysis Header analysis	/feeds/core/detection-rules/link-intuit-link-abuse-with-file-share-context-cd15cc34
Link: Invoice or receipt from freemail sender with customer service number	@vector_sec	11d ago Jan 12th, 2026	BEC/Fraud Callback Phishing Free email provider Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-invoice-or-receipt-from-freemail-sender-with-customer-service-number-3825232d
Link: IPFS	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Free file host Free subdomain host IPFS Sender analysis URL analysis	/feeds/core/detection-rules/link-ipfs-19fa6442
Link: IPv4-mapped IPv6 address obfuscation	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-ipv4-mapped-ipv6-address-obfuscation-caacf30c
Link: Jensi file preview link from unsolicited sender	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Free file host Free subdomain host Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/link-jensi-file-preview-link-from-unsolicited-sender-122b39f3
Link: Mamba 2FA phishing kit	Sublime Security	1mo ago Dec 16th, 2025	Credential Phishing Evasion Social engineering URL analysis	/feeds/core/detection-rules/link-mamba-2fa-phishing-kit-8d527c0f
Link: Microsoft Dynamics 365 form phishing	Sublime Security	1mo ago Dec 5th, 2025	Credential Phishing Evasion Content analysis File analysis Optical Character Recognition Natural Language Understanding URL analysis URL screenshot	/feeds/core/detection-rules/link-microsoft-dynamics-365-form-phishing-f72b9085
Link: Microsoft impersonation using hosted png with suspicious link	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/link-microsoft-impersonation-using-hosted-png-with-suspicious-link-07c696d4
Link: Microsoft protected message with matching sender and recipient addresses	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis File analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-microsoft-protected-message-with-matching-sender-and-recipient-addresses-a5a2f75d
Link: Multiple HTTP protocols in single URL	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-multiple-http-protocols-in-single-url-92f9d241
Link: Multistage landing - Abused Adobe Acrobat hosted PDF	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Optical Character Recognition URL analysis Header analysis Sender analysis	/feeds/core/detection-rules/link-multistage-landing-abused-adobe-acrobat-hosted-pdf-609081ef
Link: Multistage landing - Abused Adobe frame.io	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Evasion Free file host Content analysis Whois Computer Vision URL analysis HTML analysis	/feeds/core/detection-rules/link-multistage-landing-abused-adobe-frameio-a6c457c5

369 Rules

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