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 Mar 9th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Impersonation: Fake Gmail attachment	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Content analysis File analysis Sender analysis	/feeds/core/detection-rules/impersonation-fake-gmail-attachment-0f5a4e14
Impersonation: Human Resources with link or attachment and engaging language	Sublime Security	7mo ago Jul 16th, 2025	BEC/Fraud Credential Phishing Impersonation: Employee Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/impersonation-human-resources-with-link-or-attachment-and-engaging-language-8c95a6a8
Impersonation: Internal corporate services	Sublime Security	1mo ago Jan 28th, 2026	Credential Phishing Impersonation: Employee Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/impersonation-internal-corporate-services-3cd04f33
Impersonation: Recipient organization in sender display name with credential theft image	Sublime Security	21d ago Feb 17th, 2026	Credential Phishing Image as content Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/impersonation-recipient-organization-in-sender-display-name-with-credential-theft-image-6abfb20e
Impersonation: Salesforce fake campaign failure notification	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/impersonation-salesforce-fake-campaign-failure-notification-d66000ca
Impersonation: SharePoint reply header anomaly	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Social engineering Impersonation: Brand Evasion Spoofing Header analysis Content analysis Sender analysis	/feeds/core/detection-rules/impersonation-sharepoint-reply-header-anomaly-78875848
Impersonation: Social Security Administration (SSA)	Sublime Security	1mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/impersonation-social-security-administration-ssa-6196767e
Impersonation: Suspected supplier impersonation with suspicious content	Sublime Security	1y 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
Impersonation using recipient domain (untrusted sender)	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/impersonation-using-recipient-domain-untrusted-sender-63e5808a
Inbound message from popular service via newly observed distribution list	Sublime Security	7mo ago Aug 5th, 2025	Callback Phishing Evasion Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/inbound-message-from-popular-service-via-newly-observed-distribution-list-8f4bc148
Invoicera infrastructure abuse	Sublime Security	2y ago Mar 7th, 2024	Credential Phishing Spam Free file host Free subdomain host Image as content Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/invoicera-infrastructure-abuse-1e56f310
Job scam (unsolicited sender)	Sublime Security	4mo ago Nov 3rd, 2025	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/job-scam-unsolicited-sender-a37dc32d
Job scam with specific salary pattern	Sublime Security	1mo ago Jan 21st, 2026	BEC/Fraud Social engineering Content analysis Natural Language Understanding Header analysis Sender analysis	/feeds/core/detection-rules/job-scam-with-specific-salary-pattern-af7f9e21
Link: Abused Adobe Express	Sublime Security	7mo 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	3mo 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 from unsolicited sender	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content analysis Sender analysis	/feeds/core/detection-rules/link-adobe-share-from-unsolicited-sender-8e29ab33
Link: Adobe share with suspicious indicators	Sublime Security	1mo 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	1mo 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	4mo 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: Cryptocurrency fraud with suspicious links	Sublime Security	3mo 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: Direct download of executable file	Sublime Security	8d ago Mar 2nd, 2026	Malware/Ransomware Evasion Sender analysis URL analysis	/feeds/core/detection-rules/link-direct-download-of-executable-file-dbbfd077
Link: Direct link to riddle.com hosted showcase	Sublime Security	1mo 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	7mo 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 MSI download from low reputation domain	Sublime Security	19d ago Feb 19th, 2026	Malware/Ransomware Evasion Sender analysis URL analysis	/feeds/core/detection-rules/link-direct-msi-download-from-low-reputation-domain-1eb77537
Link: Executable file download with suspicious message content	Sublime Security	4mo 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	6d ago Mar 4th, 2026	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	4mo 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: Free file hosting with undisclosed recipients	Sublime Security	15d ago Feb 23rd, 2026	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: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	7mo 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 Drawings link from new sender	Sublime Security	18h ago Mar 9th, 2026	Credential Phishing BEC/Fraud Social engineering URL analysis Sender analysis	/feeds/core/detection-rules/link-google-drawings-link-from-new-sender-fb91c892
Link: Google Forms link with credential theft language	Sublime Security	8d ago Mar 2nd, 2026	Credential Phishing Social engineering Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/link-google-forms-link-with-credential-theft-language-0cad40e2
Link: Google Translate (unsolicited)	@ajpc500	1mo ago Jan 12th, 2026	Credential Phishing Open redirect Sender analysis URL analysis	/feeds/core/detection-rules/link-google-translate-unsolicited-6949e115
Link: Hotel booking spoofed display URL	Sublime Security	21d ago Feb 17th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering URL analysis Sender analysis	/feeds/core/detection-rules/link-hotel-booking-spoofed-display-url-96deeec7
Link: Invoice or receipt from freemail sender with customer service number	@vector_sec	1mo 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	1mo 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: Jensi file preview link from unsolicited sender	Sublime Security	1mo 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: Microsoft impersonation using hosted png with suspicious link	Sublime Security	1mo 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	1mo 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: Multistage landing - Abused Adobe Acrobat hosted PDF	Sublime Security	1mo 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 Docusign	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Evasion Free subdomain host Free file host Content analysis Sender analysis URL analysis Whois HTML analysis	/feeds/core/detection-rules/link-multistage-landing-abused-docusign-4189a645
Link: Multistage landing - Abused Google Drive	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Evasion Free email provider Free file host Content analysis Sender analysis URL analysis Whois HTML analysis	/feeds/core/detection-rules/link-multistage-landing-abused-google-drive-c86288b4
Link: Multistage landing - Ludus presentation	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Evasion Social engineering Impersonation: Brand Header analysis URL analysis Computer Vision URL screenshot Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/link-multistage-landing-ludus-presentation-a8b3c311
Link: Multistage landing - Trello board abuse	Sublime Security	6mo ago Aug 20th, 2025	Credential Phishing Free file host Social engineering URL analysis Content analysis Sender analysis URL screenshot	/feeds/core/detection-rules/link-multistage-landing-trello-board-abuse-14a5b23a
Link: MyActiveCampaign Link Abuse	Sublime Security	6mo ago Aug 20th, 2025	Credential Phishing Social engineering Natural Language Understanding URL analysis Sender analysis	/feeds/core/detection-rules/link-myactivecampaign-link-abuse-f5b91ce5
Link: .onion From Unsolicited Sender	Sublime Security	7mo ago Jul 30th, 2025	Malware/Ransomware Credential Phishing Evasion Social engineering URL analysis Header analysis Sender analysis	/feeds/core/detection-rules/link-onion-from-unsolicited-sender-9ac0fc83
Link: PDF and financial display text to free file host	Sublime Security	5mo ago Sep 24th, 2025	Credential Phishing Free file host Free email provider Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-pdf-and-financial-display-text-to-free-file-host-b010740b
Link: PDF filename impersonation with credential theft language	Sublime Security	26d ago Feb 12th, 2026	Credential Phishing Social engineering Evasion PDF Content analysis Natural Language Understanding Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-pdf-filename-impersonation-with-credential-theft-language-05931513
Link: QR code with phishing disposition in img or pdf	Sublime Security	7mo ago Jul 30th, 2025	Credential Phishing QR code Social engineering Content analysis Computer Vision QR code analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-qr-code-with-phishing-disposition-in-img-or-pdf-8e8949f6
Link: QR Code with suspicious language (untrusted sender)	Sublime Security	7mo ago Jul 30th, 2025	Credential Phishing Impersonation: Brand QR code Social engineering Content analysis Computer Vision Natural Language Understanding QR code analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-qr-code-with-suspicious-language-untrusted-sender-25a84d1c
Link: Recipient domain in URL path	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Lookalike domain Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-recipient-domain-in-url-path-de08731f

618 Rules

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