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
Open redirect: next2.io	Sublime Security	9mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/open-redirect-next2io-5085c422
Open redirect: people.anuneo.com	Sublime Security	9mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/open-redirect-peopleanuneocom-2ae83b73
Open redirect: slubnaglowie.pl	Sublime Security	9mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/open-redirect-slubnaglowiepl-2ec356d0
Open redirect: typedrawers.com	Sublime Security	9mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect QR code Social engineering Content analysis File analysis QR code analysis Sender analysis	/feeds/core/detection-rules/open-redirect-typedrawerscom-158d9e95
Outlook hyperlink bypass: left-to-right mark (LRM) in base HTML tag	Sublime Security	2mo ago Dec 10th, 2025	Credential Phishing Evasion Exploit Content analysis HTML analysis URL analysis	/feeds/core/detection-rules/outlook-hyperlink-bypass-left-to-right-mark-lrm-in-base-html-tag-160cc681
PayPal invoice abuse	Sublime Security	27d ago Feb 11th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/paypal-invoice-abuse-0ff7a0d4
PDF attachment with Google (AE) redirecting to a php or zip file	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Open redirect PDF Content analysis File analysis URL analysis	/feeds/core/detection-rules/pdf-attachment-with-google-ae-redirecting-to-a-php-or-zip-file-57ae513f
PhaaS: Impact Solutions (Impact Vector Suite)	Sublime Security	1mo ago Jan 23rd, 2026	Credential Phishing Evasion Content analysis	/feeds/core/detection-rules/phaas-impact-solutions-impact-vector-suite-4d197faf
Potential prompt injection attack in body HTML	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam BEC/Fraud Evasion Social engineering Header analysis HTML analysis Content analysis	/feeds/core/detection-rules/potential-prompt-injection-attack-in-body-html-5fb24736
QR Code with suspicious indicators	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing QR code Social engineering Content analysis Header analysis Computer Vision Natural Language Understanding QR code analysis Sender analysis URL analysis	/feeds/core/detection-rules/qr-code-with-suspicious-indicators-04f5c34f
Reconnaissance: All recipients cc/bcc'd or undisclosed	Sublime Security	1mo ago Feb 5th, 2026	Reconnaissance Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/reconnaissance-all-recipients-ccbccd-or-undisclosed-420f60d3
Reconnaissance: Email address harvesting attempt	Sublime Security	15d ago Feb 23rd, 2026	BEC/Fraud Credential Phishing Spam Free email provider Social engineering Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/reconnaissance-email-address-harvesting-attempt-bb31efbc
Reconnaissance: Empty message from uncommon sender	Sublime Security	13d ago Feb 25th, 2026	Spam Evasion Social engineering Content analysis Header analysis	/feeds/core/detection-rules/reconnaissance-empty-message-from-uncommon-sender-b347cdbc
Reconnaissance: Hotel booking reply-to redirect	Sublime Security	1mo ago Jan 27th, 2026	BEC/Fraud Free email provider Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/reconnaissance-hotel-booking-reply-to-redirect-08c36035
Reconnaissance: Large unknown recipient list	Sublime Security	3mo ago Nov 24th, 2025	Reconnaissance Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/reconnaissance-large-unknown-recipient-list-24783a28
Reconnaissance: Short generic greeting message	Sublime Security	1mo ago Jan 27th, 2026	BEC/Fraud Callback Phishing Social engineering Free email provider Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/reconnaissance-short-generic-greeting-message-c67dedab
Recruitee Infrastructure Abuse	Sublime Security	7mo ago Jul 16th, 2025	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Whois	/feeds/core/detection-rules/recruitee-infrastructure-abuse-31cab83d
Request for Quote or Purchase (RFQ\|RFP) with HTML smuggling attachment	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Content analysis File analysis HTML analysis Javascript analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/request-for-quote-or-purchase-rfqorrfp-with-html-smuggling-attachment-a47a5755
Request for Quote or Purchase (RFQ\|RFP) with suspicious sender or recipient pattern	Sublime Security	19h ago Mar 9th, 2026	BEC/Fraud Evasion Free email provider Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/request-for-quote-or-purchase-rfqorrfp-with-suspicious-sender-or-recipient-pattern-2ac0d329
Salesforce infrastructure abuse	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Content analysis Header analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/salesforce-infrastructure-abuse-78a77c70
Scam: Piano giveaway	Sublime Security	2mo ago Dec 11th, 2025	BEC/Fraud Free email provider Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/scam-piano-giveaway-1a91a203
Self-sent fake PDF attachment with misleading link	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Free subdomain host Social engineering Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/self-sent-fake-pdf-attachment-with-misleading-link-8a285d2e
Sendgrid voicemail phish	Sublime Security	3mo ago Nov 24th, 2025	Credential Phishing Social engineering Content analysis Header analysis	/feeds/core/detection-rules/sendgrid-voicemail-phish-21cad89c
Service abuse: Adobe legitimate domain with document approval language	Sublime Security	1mo ago Jan 23rd, 2026	BEC/Fraud Credential Phishing Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/service-abuse-adobe-legitimate-domain-with-document-approval-language-237f4da4
Service abuse: Apple TestFlight with suspicious developer reference	Sublime Security	1mo ago Feb 6th, 2026	Spam Social engineering Content analysis HTML analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/service-abuse-apple-testflight-with-suspicious-developer-reference-e7ea0ee0
Service abuse: AppSheet infrastructure with suspicious indicators	Sublime Security	5mo ago Oct 6th, 2025	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis Whois	/feeds/core/detection-rules/service-abuse-appsheet-infrastructure-with-suspicious-indicators-5937646a
Service Abuse: Box file sharing with credential phishing intent	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Callback Phishing Evasion Social engineering Impersonation: Employee Impersonation: VIP Content analysis Natural Language Understanding Sender analysis Header analysis	/feeds/core/detection-rules/service-abuse-box-file-sharing-with-credential-phishing-intent-5bd0cb25
Service abuse: Callback phishing via Microsoft Teams invite	Sublime Security	2mo ago Dec 12th, 2025	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/service-abuse-callback-phishing-via-microsoft-teams-invite-13e35e5f
Service abuse: Cisco secure email service with financial request	Sublime Security	5mo ago Oct 1st, 2025	BEC/Fraud Impersonation: Brand Social engineering Evasion Content analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/service-abuse-cisco-secure-email-service-with-financial-request-43a6daa8
Service abuse: DocSend share from an unsolicited reply-to address	Sublime Security	6d ago Mar 4th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/service-abuse-docsend-share-from-an-unsolicited-reply-to-address-b377e64c
Service abuse: DocSend share from newly registered domain	Sublime Security	1mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Evasion Free file host Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/service-abuse-docsend-share-from-newly-registered-domain-3bc152f2
Service abuse: DocuSign notification with suspicious sender or document name	Sublime Security	7mo ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis	/feeds/core/detection-rules/service-abuse-docusign-notification-with-suspicious-sender-or-document-name-5e4707cd
Service abuse: DocuSign share from an unsolicited reply-to address	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/service-abuse-docusign-share-from-an-unsolicited-reply-to-address-2f12d616
Service abuse: Dropbox share from an unsolicited reply-to address	Sublime Security	7mo ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis	/feeds/core/detection-rules/service-abuse-dropbox-share-from-an-unsolicited-reply-to-address-50a1499f
Service abuse: Dropbox share from new domain	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing Credential Phishing BEC/Fraud Evasion Social engineering Content analysis Sender analysis Header analysis	/feeds/core/detection-rules/service-abuse-dropbox-share-from-new-domain-0e664bd9
Service abuse: Dropbox share with suspicious sender or document name	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis	/feeds/core/detection-rules/service-abuse-dropbox-share-with-suspicious-sender-or-document-name-27007c9f
Service abuse: Facebook business with action required subject	Sublime Security	3mo ago Nov 17th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis	/feeds/core/detection-rules/service-abuse-facebook-business-with-action-required-subject-64297d2f
Service abuse: File sharing impersonation with external SharePoint links	Sublime Security	16h ago Mar 9th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/service-abuse-file-sharing-impersonation-with-external-sharepoint-links-729661f2
Service abuse: FlipHTML5 with attachment deception and credential theft language	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Social engineering Free file host Evasion Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/service-abuse-fliphtml5-with-attachment-deception-and-credential-theft-language-02464799
Service abuse: Formester with suspicious link behavior	Sublime Security	2mo ago Dec 19th, 2025	Credential Phishing BEC/Fraud Open redirect Social engineering Free file host Computer Vision Content analysis URL analysis URL screenshot	/feeds/core/detection-rules/service-abuse-formester-with-suspicious-link-behavior-e4b74fd4
Service abuse: GetAccept callback scam content	Sublime Security	1mo ago Jan 16th, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/service-abuse-getaccept-callback-scam-content-7ec2f70b
Service Abuse: GoDaddy infrastructure	Sublime Security	2mo ago Jan 7th, 2026	Callback Phishing Extortion Evasion Natural Language Understanding Content analysis	/feeds/core/detection-rules/service-abuse-godaddy-infrastructure-8a2dd357
Service abuse: Google classroom solicitation	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Impersonation: Brand Out of band pivot Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/service-abuse-google-classroom-solicitation-e9c39e92
Service Abuse: HelloSign share with suspicious sender or document name	Sublime Security	1mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis	/feeds/core/detection-rules/service-abuse-hellosign-share-with-suspicious-sender-or-document-name-464d98f3
Service abuse: HungerRush domain with SendGrid tracking targeting ProtonMail	Sublime Security	6d ago Mar 4th, 2026	BEC/Fraud Evasion Sender analysis HTML analysis Content analysis	/feeds/core/detection-rules/service-abuse-hungerrush-domain-with-sendgrid-tracking-targeting-protonmail-73f62e74
Service abuse: Microsoft Power Automate callback scam impersonation	Sublime Security	5d ago Mar 5th, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/service-abuse-microsoft-power-automate-callback-scam-impersonation-18d1c18b
Service abuse: Microsoft Power BI callback scam	Sublime Security	1mo ago Jan 22nd, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/service-abuse-microsoft-power-bi-callback-scam-7a55388e
Service abuse: Monday.com callback scam	Sublime Security	1mo ago Jan 26th, 2026	Callback Phishing Social engineering Out of band pivot Content analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/service-abuse-mondaycom-callback-scam-82cf4502
Service abuse: Monday.com infrastructure with phishing intent	Sublime Security	18h ago Mar 9th, 2026	Credential Phishing Evasion Social engineering QR code Content analysis File analysis Header analysis QR code analysis Sender analysis URL analysis	/feeds/core/detection-rules/service-abuse-mondaycom-infrastructure-with-phishing-intent-a346e3b1
Service abuse: Nylas tracking subdomain with suspicious content	Sublime Security	4d ago Mar 6th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/service-abuse-nylas-tracking-subdomain-with-suspicious-content-a3a6c896

478 Rules

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