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
Link: SharePoint filename matches org name	Sublime Security	3mo ago Sep 26th, 2025	Credential Phishing Impersonation: Employee Social engineering Content analysis URL analysis	/feeds/core/detection-rules/link-sharepoint-filename-matches-org-name-cb954726
Link: Spam website with evasion indicators	Sublime Security	1mo ago Nov 25th, 2025	Spam Evasion URL analysis URL screenshot Content analysis	/feeds/core/detection-rules/link-spam-website-with-evasion-indicators-08bcd353
Link: Suspicious SharePoint document name	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content analysis	/feeds/core/detection-rules/link-suspicious-sharepoint-document-name-f95fee6e
Link: Suspicious URL with recipient targeting and special characters	Sublime Security	2d ago Jan 22nd, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis	/feeds/core/detection-rules/link-suspicious-url-with-recipient-targeting-and-special-characters-e808be3a
Link to auto-downloaded file with Google Drive branding	Sublime Security	12d ago Jan 12th, 2026	Malware/Ransomware Impersonation: Brand Social engineering Content analysis File analysis Optical Character Recognition URL analysis URL screenshot	/feeds/core/detection-rules/link-to-auto-downloaded-file-with-google-drive-branding-4b5343be
Link to Google Apps Script macro via comment tagging	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-to-google-apps-script-macro-via-comment-tagging-66fecd30
Link: Tycoon2FA phishing kit (non-exhaustive)	Sublime Security	20h ago Jan 23rd, 2026	Credential Phishing Free subdomain host Evasion Credential Phishing URL analysis HTML analysis Content analysis	/feeds/core/detection-rules/link-tycoon2fa-phishing-kit-non-exhaustive-a070d4e2
Link: Uncommon SharePoint document type with sender's display name	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Social engineering OneNote PDF Content analysis Header analysis HTML analysis URL analysis	/feeds/core/detection-rules/link-uncommon-sharepoint-document-type-with-senders-display-name-02d290b2
Link: URL scheme obfuscation via split HTML anchors	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing BEC/Fraud Evasion HTML injection Social engineering Content analysis HTML analysis URL analysis	/feeds/core/detection-rules/link-url-scheme-obfuscation-via-split-html-anchors-10375948
Link: Webflow link from unsolicited sender	Sublime Security	5mo ago Aug 5th, 2025	Callback Phishing Free file host Free subdomain host Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/link-webflow-link-from-unsolicited-sender-d4f3b8cf
Link: Zoho form link from unsolicited sender	Sublime Security	5mo ago Aug 5th, 2025	Callback Phishing Free file host Content analysis URL analysis Sender analysis	/feeds/core/detection-rules/link-zoho-form-link-from-unsolicited-sender-eb04a9f2
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Evasion Free file host Free subdomain host HTML smuggling Impersonation: Brand Open redirect Social engineering Content analysis File analysis HTML analysis Javascript analysis Sender analysis URL analysis	/feeds/core/detection-rules/low-reputation-link-to-auto-downloaded-html-file-with-smuggling-indicators-339676c6
Mass campaign: Cross Site Scripting (XSS) attempt	Sublime Security	6mo ago Jul 16th, 2025	Malware/Ransomware Spam Exploit Free email provider Scripting Social engineering Content analysis Header analysis Sender analysis	/feeds/core/detection-rules/mass-campaign-cross-site-scripting-xss-attempt-6cbb7124
Microsoft device code phishing	@ajpc500	12d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/microsoft-device-code-phishing-61f3ae67
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	3mo ago Oct 1st, 2025	Evasion Social engineering Archive analysis Content analysis File analysis Sender analysis	/feeds/core/detection-rules/non-rfc-compliant-calendar-files-from-unsolicited-sender-9859f100
Notion suspicious file share	Sublime Security	6mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Content analysis Sender analysis URL analysis	/feeds/core/detection-rules/notion-suspicious-file-share-f7307929
Open redirect: Cartoon Network	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Spam Open redirect Evasion Content analysis URL analysis	/feeds/core/detection-rules/open-redirect-cartoon-network-7435e057
Open redirect: giving.lluh.org	Sublime Security	8mo 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-givinglluhorg-a2bf1099
Open redirect (go2.aspx) leading to Microsoft credential phishing	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Open redirect Content analysis Header analysis URL analysis	/feeds/core/detection-rules/open-redirect-go2aspx-leading-to-microsoft-credential-phishing-51667096
Open Redirect: Google domain with /url path and suspicious indicators	Sublime Security	12d ago Jan 12th, 2026	Credential Phishing Evasion Open redirect Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/open-redirect-google-domain-with-url-path-and-suspicious-indicators-fc5adf74
Open redirect: Klaviyo	Sublime Security	2y ago May 14th, 2024	Credential Phishing Spam Evasion Impersonation: Brand Open redirect Social engineering Content analysis URL analysis	/feeds/core/detection-rules/open-redirect-klaviyo-ce5a370a
Open redirect: marketing.edinburghairport.com	Sublime Security	8mo 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-marketingedinburghairportcom-33a47565
Open redirect: next2.io	Sublime Security	8mo 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	8mo 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	8mo 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	8mo 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	1mo 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	12d ago Jan 12th, 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	12d 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	5h 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	12d 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	12d 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	12d ago Jan 12th, 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	12d ago Jan 12th, 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: Large unknown recipient list	Sublime Security	2mo 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 Dec 2nd, 2025	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	6mo 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	12d 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	9d ago Jan 15th, 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	12d 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	1mo 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	12d 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	2mo 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	23h 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: AppSheet infrastructure with suspicious indicators	Sublime Security	3mo 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	12d 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	1mo 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	3mo 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	5mo ago Aug 5th, 2025	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	12d 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

438 Rules

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