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
Brand impersonation: Google Workspace alert notification	Sublime Security	3mo ago Dec 2nd, 2025	Credential Phishing Impersonation: Brand Social engineering Lookalike domain Header analysis Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-google-workspace-alert-notification-143ffbc4
Brand impersonation: LastPass	Sublime Security	5d ago Mar 5th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-lastpass-99831d35
Brand impersonation: Microsoft logo or suspicious language with open redirect	Sublime Security	2y ago Mar 7th, 2024	BEC/Fraud Impersonation: Brand Open redirect Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-logo-or-suspicious-language-with-open-redirect-27b8d8d8
Brand impersonation: Microsoft Planner with suspicious link	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Evasion Image as content Impersonation: Brand Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-planner-with-suspicious-link-ea363c08
Brand impersonation: Microsoft Teams invitation	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-teams-invitation-46410ad8
Brand impersonation: Microsoft with low reputation links	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free file host Image as content Impersonation: Brand Social engineering Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-microsoft-with-low-reputation-links-b59201b6
Brand impersonation: Navan	Sublime Security	29d ago Feb 9th, 2026	Credential Phishing Impersonation: Brand Social engineering Spoofing Sender analysis Natural Language Understanding URL analysis Content analysis	/feeds/core/detection-rules/brand-impersonation-navan-3573e9a8
Brand impersonation: Paperless Post	Sublime Security	4mo ago Nov 6th, 2025	Credential Phishing Malware/Ransomware Impersonation: Brand Content analysis Header analysis HTML analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-paperless-post-e9ec5e09
Brand impersonation: Proofpoint secure messaging without legitimate indicators	Sublime Security	3mo ago Nov 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-proofpoint-secure-messaging-without-legitimate-indicators-84b72d02
Brand impersonation: Purdue ePlanroom with suspicious links	Sublime Security	3mo ago Dec 2nd, 2025	Credential Phishing BEC/Fraud Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-purdue-eplanroom-with-suspicious-links-4db5b0b6
Brand impersonation: Sharepoint fake file share	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Impersonation: Brand Social engineering Content analysis Header analysis URL analysis Computer Vision	/feeds/core/detection-rules/brand-impersonation-sharepoint-fake-file-share-ff8b296b
Brand impersonation: SharePoint PDF attachment with credential theft language	Sublime Security	4mo ago Nov 7th, 2025	Credential Phishing Impersonation: Brand Social engineering PDF Evasion Computer Vision File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis Header analysis Whois	/feeds/core/detection-rules/brand-impersonation-sharepoint-pdf-attachment-with-credential-theft-language-ae3756fa
Brand impersonation: Stripe notification	Sublime Security	5mo ago Sep 26th, 2025	Credential Phishing Evasion Impersonation: Brand Social engineering Content analysis Header analysis URL analysis Whois	/feeds/core/detection-rules/brand-impersonation-stripe-notification-3ffd2b03
Brand impersonation: UK government Home Office	Sublime Security	1mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Lookalike domain Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/brand-impersonation-uk-government-home-office-f35d846a
Brand impersonation: Zoom	Sublime Security	5mo ago Sep 22nd, 2025	Credential Phishing Impersonation: Brand Social engineering Evasion Computer Vision Content analysis HTML analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/brand-impersonation-zoom-5abad540
Brand impersonation: Zoom via lookalike domain	Sublime Security	4d ago Mar 6th, 2026	Credential Phishing Impersonation: Brand Free email provider Social engineering URL analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-zoom-via-lookalike-domain-b9d5e4b5
Callback phishing via Adobe Sign comment	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Evasion Impersonation: Brand Out of band pivot Social engineering Content analysis Computer Vision Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/callback-phishing-via-adobe-sign-comment-7eb4516d
Callback phishing via DocuSign comment	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Evasion Impersonation: Brand Out of band pivot Social engineering Content analysis Computer Vision Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/callback-phishing-via-docusign-comment-48aec918
Callback Phishing via Signable E-Signature Request	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/callback-phishing-via-signable-e-signature-request-4599575d
Callback phishing via SignFree e-signature request	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/callback-phishing-via-signfree-e-signature-request-21381c37
Callback phishing via Xodo Sign comment	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Exploit Impersonation: Brand Out of band pivot Social engineering Computer Vision Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/callback-phishing-via-xodo-sign-comment-6f722c5d
Canva design with suspicious embedded link	Sublime Security	5mo ago Sep 29th, 2025	Credential Phishing Evasion Social engineering Free file host HTML analysis URL analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/canva-design-with-suspicious-embedded-link-02959e22
Catbox.moe link from untrusted source	Sublime Security	7mo ago Aug 5th, 2025	Malware/Ransomware Free file host Social engineering Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/catboxmoe-link-from-untrusted-source-d6041a8b
ClickFunnels link infrastructure abuse	Sublime Security	1mo ago Feb 5th, 2026	Credential Phishing Free email provider Free subdomain host Social engineering Content analysis Header analysis QR code analysis Sender analysis URL analysis	/feeds/core/detection-rules/clickfunnels-link-infrastructure-abuse-9192fbe9
Cloud storage impersonation with credential theft indicators	Sublime Security	18d ago Feb 20th, 2026	Credential Phishing Free file host Image as content Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/cloud-storage-impersonation-with-credential-theft-indicators-4c20f72c
Commonly abused sender TLD with engaging language	Sublime Security	7mo ago Aug 7th, 2025	Credential Phishing Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/commonly-abused-sender-tld-with-engaging-language-447386dc
Credential phishing: Blue button styled link with file-sharing template artifacts	Sublime Security	10h ago Mar 9th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis HTML analysis URL analysis	/feeds/core/detection-rules/credential-phishing-blue-button-styled-link-with-file-sharing-template-artifacts-370f6c07
Credential phishing content and link (untrusted sender)	Sublime Security	2mo ago Dec 17th, 2025	Credential Phishing Social engineering Computer Vision Sender analysis URL analysis URL screenshot	/feeds/core/detection-rules/credential-phishing-content-and-link-untrusted-sender-f0c95bb7
Credential phishing: Engaging language and other indicators (untrusted sender)	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/credential-phishing-engaging-language-and-other-indicators-untrusted-sender-c2bc8ca2
Credential phishing: Engaging language with IPFS link	Sublime Security	2y ago May 3rd, 2024	Credential Phishing Free file host Free subdomain host IPFS Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/credential-phishing-engaging-language-with-ipfs-link-996c4d83
Credential phishing: Generic document sharing	Sublime Security	24d ago Feb 14th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Impersonation: Employee Content analysis Natural Language Understanding URL analysis Sender analysis	/feeds/core/detection-rules/credential-phishing-generic-document-sharing-9f0e1d2c
Credential phishing: Hyper-linked image leading to free file host	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Evasion Free file host Image as content Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/credential-phishing-hyper-linked-image-leading-to-free-file-host-f5cb1eca
Credential phishing language and suspicious indicators (unknown sender)	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/credential-phishing-language-and-suspicious-indicators-unknown-sender-89c186f7
Credential phishing link (unknown sender)	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Social engineering Computer Vision Sender analysis URL analysis URL screenshot	/feeds/core/detection-rules/credential-phishing-link-unknown-sender-a278012b
Credential phishing: Onedrive impersonation	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free subdomain host Impersonation: Brand Social engineering Content analysis Header analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/credential-phishing-onedrive-impersonation-1f990c92
Credential phishing: Re-Authentication lure	Sublime Security	4mo ago Oct 17th, 2025	Credential Phishing Social engineering Impersonation: Brand Natural Language Understanding Content analysis URL analysis Header analysis Sender analysis	/feeds/core/detection-rules/credential-phishing-re-authentication-lure-2e45d3de
Credential phishing: Suspicious e-sign agreement document notification	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Social engineering Content analysis Header analysis HTML analysis URL analysis Sender analysis	/feeds/core/detection-rules/credential-phishing-suspicious-e-sign-agreement-document-notification-9b68c2d8
Credential Phishing: Suspicious language, link, recipients and other indicators	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Evasion Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/credential-phishing-suspicious-language-link-recipients-and-other-indicators-dcb39190
Credential phishing: Tax form impersonation with payment request	Sublime Security	25d ago Feb 13th, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering PDF Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/credential-phishing-tax-form-impersonation-with-payment-request-717695cf
Deceptive Dropbox mention	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Free file host Free subdomain host Social engineering Header analysis Content analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/deceptive-dropbox-mention-58a107bc
DocuSign impersonation via CloudHQ links	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing BEC/Fraud Impersonation: Brand Free file host Header analysis URL analysis Content analysis Sender analysis	/feeds/core/detection-rules/docusign-impersonation-via-cloudhq-links-44ba2fee
Fake message thread with a suspicious link and engaging language from an unknown sender	Sublime Security	3mo ago Nov 12th, 2025	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/fake-message-thread-with-a-suspicious-link-and-engaging-language-from-an-unknown-sender-8fd0e211
Fake scan-to-email message	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free file host Social engineering Content analysis Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/fake-scan-to-email-message-78851fbe
Fake voicemail notification (untrusted sender)	Sublime Security	1mo ago Jan 22nd, 2026	Credential Phishing Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/fake-voicemail-notification-untrusted-sender-74ba7787
Fake Zoho Sign template abuse	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Open redirect Social engineering Content analysis HTML analysis URL analysis	/feeds/core/detection-rules/fake-zoho-sign-template-abuse-785fd0d5
Fake Zoom meeting invite with suspicious link	Sublime Security	3mo ago Dec 1st, 2025	Credential Phishing Impersonation: Brand Evasion Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/fake-zoom-meeting-invite-with-suspicious-link-aba95f23
File sharing link from suspicious sender domain	Sublime Security	25d ago Feb 13th, 2026	Credential Phishing Malware/Ransomware Free file host Sender analysis URL analysis	/feeds/core/detection-rules/file-sharing-link-from-suspicious-sender-domain-95f20354
File sharing link with a suspicious subject	Sublime Security	21d ago Feb 17th, 2026	BEC/Fraud Free file host Social engineering Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/file-sharing-link-with-a-suspicious-subject-a306e2a6
Free subdomain link with credential theft indicators	Sublime Security	2y ago Dec 12th, 2024	Credential Phishing Free subdomain host Content analysis Header analysis Natural Language Understanding Optical Character Recognition URL analysis URL screenshot	/feeds/core/detection-rules/free-subdomain-link-with-credential-theft-indicators-9187479c
Google Accelerated Mobile Pages (AMP) abuse	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Impersonation: Brand Open redirect Computer Vision Content analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis URL screenshot	/feeds/core/detection-rules/google-accelerated-mobile-pages-amp-abuse-46907029

405 Rules

Page 2 of 9