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
Brand impersonation: Paperless Post	Sublime Security	2mo 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: PayPal	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-paypal-a6b2ceee
Brand impersonation: PNC	Sublime Security	3mo ago Oct 9th, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-pnc-1b5ae4fb
Brand impersonation: Proofpoint secure messaging without legitimate indicators	Sublime Security	2mo 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: Quickbooks	Sublime Security	8d ago Jan 15th, 2026	Callback Phishing Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-quickbooks-4fd791d1
Brand impersonation: QuickBooks notification from Intuit themed company name	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Credential Phishing BEC/Fraud Evasion Social engineering Content analysis Sender analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-quickbooks-notification-from-intuit-themed-company-name-42058fc4
Brand impersonation: Robert Half	Sublime Security	3mo ago Oct 1st, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-robert-half-74f8826c
Brand impersonation: SendGrid	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Credential Phishing Spam Impersonation: Brand Social engineering Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-sendgrid-d800124f
Brand Impersonation: ShareFile	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Evasion Lookalike domain Header analysis Content analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-sharefile-f8330307
Brand impersonation: Sharepoint fake file share	Sublime Security	11d 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	2mo 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: Shein	Sublime Security	3mo ago Oct 15th, 2025	Credential Phishing Spam Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-shein-b5843f22
Brand impersonation: SiriusXM	Sublime Security	5mo ago Aug 5th, 2025	Callback Phishing Credential Phishing Spam Free email provider Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-siriusxm-70eb3792
Brand impersonation: Square	Sublime Security	3mo ago Oct 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-square-63f9b449
Brand impersonation: Squarespace	Sublime Security	4mo ago Sep 11th, 2025	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-squarespace-f806de6f
Brand impersonation: State Farm	Sublime Security	1mo ago Dec 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Spoofing Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-state-farm-bcf7eba0
Brand Impersonation: Stripe	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-stripe-862d4654
Brand impersonation: Stripe notification	Sublime Security	3mo 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: Survey request with credential theft indicators	Sublime Security	2mo ago Nov 8th, 2025	Credential Phishing Social engineering Impersonation: Brand Spoofing Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/brand-impersonation-survey-request-with-credential-theft-indicators-ea1c0e09
Brand impersonation: TikTok	Sublime Security	2mo ago Oct 30th, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-tiktok-aaacc8b7
Brand impersonation: Toronto-Dominion Bank	Sublime Security	3mo ago Oct 22nd, 2025	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/brand-impersonation-toronto-dominion-bank-2dc16a55
Brand impersonation: Trust Wallet	Sublime Security	5mo ago Aug 5th, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Natural Language Understanding Sender analysis Header analysis	/feeds/core/detection-rules/brand-impersonation-trust-wallet-e456974c
Brand impersonation: UK government Home Office	Sublime Security	11d 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: United Healthcare	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-united-healthcare-f8dfff1a
Brand impersonation: Vanguard	Sublime Security	4mo ago Sep 22nd, 2025	BEC/Fraud Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam Impersonation: Brand Natural Language Understanding Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-vanguard-3bd048fe
Brand impersonation: WeTransfer	Sublime Security	5mo ago Aug 5th, 2025	BEC/Fraud Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam Impersonation: Brand Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-wetransfer-e37885ad
Brand impersonation: Wix	Sublime Security	4mo ago Sep 23rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-wix-45e7b99f
Brand impersonation: Xodo Sign	Sublime Security	7d ago Jan 16th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/brand-impersonation-xodo-sign-e6139052
Brand spoof: Dropbox	Sublime Security	2y ago Apr 23rd, 2024	Credential Phishing Malware/Ransomware Impersonation: Brand Spoofing Header analysis Sender analysis	/feeds/core/detection-rules/brand-spoof-dropbox-bd99740a
Business Email Compromise (BEC) attempt from unsolicited sender	Sublime Security	6mo ago Jul 16th, 2025	BEC/Fraud Social engineering Spoofing Content analysis File analysis Header analysis Sender analysis	/feeds/core/detection-rules/business-email-compromise-bec-attempt-from-unsolicited-sender-57eccc45
Business Email Compromise (BEC) attempt from untrusted sender	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/business-email-compromise-bec-attempt-from-untrusted-sender-96d4c35a
Business Email Compromise (BEC) attempt from untrusted sender (French/Français)	Sublime Security	6mo ago Jul 16th, 2025	BEC/Fraud Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/business-email-compromise-bec-attempt-from-untrusted-sender-frenchfrancais-b7d1e096
Business Email Compromise (BEC) attempt with masked recipients and reply-to mismatch (unsolicited)	Sublime Security	6mo ago Jul 16th, 2025	BEC/Fraud Evasion Free email provider Header analysis Sender analysis	/feeds/core/detection-rules/business-email-compromise-bec-attempt-with-masked-recipients-and-reply-to-mismatch-unsolicited-682191bf
Callback phishing: AOL senders with suspicious HTML template or PDF attachment	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Free email provider Social engineering Content analysis Header analysis File analysis HTML analysis Exif analysis Sender analysis	/feeds/core/detection-rules/callback-phishing-aol-senders-with-suspicious-html-template-or-pdf-attachment-f6044eed
Callback phishing: Branded invoice from sender/reply-to domain less than 30 days old	Sublime Security	3mo ago Oct 17th, 2025	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Header analysis Natural Language Understanding Optical Character Recognition Whois	/feeds/core/detection-rules/callback-phishing-branded-invoice-from-senderreply-to-domain-less-than-30-days-old-e6f4af53
Callback phishing: SumUp infrastructure abuse	Sublime Security	4mo ago Sep 5th, 2025	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/callback-phishing-sumup-infrastructure-abuse-1c41649e
Callback phishing via Adobe Sign comment	Sublime Security	11d 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 calendar invite	Sublime Security	1d ago Jan 22nd, 2026	Callback Phishing Social engineering Evasion File analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/callback-phishing-via-calendar-invite-95c84360
Callback phishing via DocuSign comment	Sublime Security	11d 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 e-signature service	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Free email provider Impersonation: Brand Social engineering Content analysis Computer Vision Header analysis Optical Character Recognition	/feeds/core/detection-rules/callback-phishing-via-e-signature-service-ed37b4fd
Callback phishing via Intuit service abuse	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Optical Character Recognition	/feeds/core/detection-rules/callback-phishing-via-intuit-service-abuse-f2fe1294
Callback phishing via Microsoft comment	Sublime Security	1mo ago Dec 16th, 2025	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/callback-phishing-via-microsoft-comment-8346c7b9
Callback Phishing via Signable E-Signature Request	Sublime Security	11d 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	11d 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	11d 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
Callback phishing via Yammer comment	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Natural Language Understanding Header analysis	/feeds/core/detection-rules/callback-phishing-via-yammer-comment-66650e2b
Callback phishing via Zelle Service Abuse	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/callback-phishing-via-zelle-service-abuse-08727484
Callback phishing via Zoho service abuse	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Optical Character Recognition	/feeds/core/detection-rules/callback-phishing-via-zoho-service-abuse-61e351ec
Callback Phishing via Zoom comment	Sublime Security	4mo ago Sep 22nd, 2025	Callback Phishing Out of band pivot Social engineering Impersonation: Brand Computer Vision Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/callback-phishing-via-zoom-comment-8ec30881
Callback scam: Impersonation via TimeTrade infrastructure	Sublime Security	5mo ago Aug 20th, 2025	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Sender analysis Header analysis	/feeds/core/detection-rules/callback-scam-impersonation-via-timetrade-infrastructure-0c0b3664

337 Rules

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