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
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: Mixed case HTTPS protocol	Sublime Security	15h ago Mar 9th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-mixed-case-https-protocol-f3424a81
Link: Multiple HTTP protocols in single URL	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-multiple-http-protocols-in-single-url-92f9d241
Link: Multistage landing - Abused Adobe frame.io	Sublime Security	7mo ago Aug 5th, 2025	Credential Phishing Evasion Free file host Content analysis Whois Computer Vision URL analysis HTML analysis	/feeds/core/detection-rules/link-multistage-landing-abused-adobe-frameio-a6c457c5
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 - ClickUp abuse	Sublime Security	11d ago Feb 27th, 2026	Credential Phishing Malware/Ransomware Evasion Free file host Free subdomain host Open redirect URL analysis Whois Content analysis	/feeds/core/detection-rules/link-multistage-landing-clickup-abuse-78a5d035
Link: Multistage landing - FreshDesk knowledge base abuse	Sublime Security	6mo ago Aug 21st, 2025	Credential Phishing Open redirect Impersonation: Brand Social engineering Content analysis Natural Language Understanding URL analysis URL screenshot	/feeds/core/detection-rules/link-multistage-landing-freshdesk-knowledge-base-abuse-edd6acf7
Link: Multistage landing - JotForm abuse	Sublime Security	3mo ago Dec 1st, 2025	Credential Phishing Evasion Social engineering Content analysis HTML analysis Javascript analysis URL analysis	/feeds/core/detection-rules/link-multistage-landing-jotform-abuse-5b64326f
Link: Multistage landing - Microsoft Forms abuse	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering HTML analysis URL analysis Content analysis	/feeds/core/detection-rules/link-multistage-landing-microsoft-forms-abuse-85a2cd12
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: 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: Personal SharePoint with invalid recipients and credential theft language	Sublime Security	1mo ago Jan 23rd, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/link-personal-sharepoint-with-invalid-recipients-and-credential-theft-language-79d5403d
Link: QR code in EML attachment with credential phishing indicators	Sublime Security	3mo ago Dec 2nd, 2025	Credential Phishing Evasion Open redirect QR code Computer Vision Content analysis File analysis QR code analysis	/feeds/core/detection-rules/link-qr-code-in-eml-attachment-with-credential-phishing-indicators-9908ed3a
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 email address in 'eta' parameter	Sublime Security	1mo ago Jan 27th, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis	/feeds/core/detection-rules/link-recipient-email-address-in-eta-parameter-d24e42a2
Link: Romance/Sexual Language With Suspicious Link	Sublime Security	6mo ago Aug 22nd, 2025	Spam Social engineering Content analysis Header analysis URL analysis Whois	/feeds/core/detection-rules/link-romancesexual-language-with-suspicious-link-d5694cae
Link: ScreenConnect installer with suspicious relay domain	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion Out of band pivot Social engineering URL analysis File analysis Content analysis	/feeds/core/detection-rules/link-screenconnect-installer-with-suspicious-relay-domain-37d21eef
Link: Secure SharePoint file share from new or unusual sender	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content analysis Sender analysis	/feeds/core/detection-rules/link-secure-sharepoint-file-share-from-new-or-unusual-sender-74ed3020
Link: Self-sender with sender org in subject and credential theft indicator	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis Sender analysis URL analysis Header analysis	/feeds/core/detection-rules/link-self-sender-with-sender-org-in-subject-and-credential-theft-indicator-bfa9aa08
Link: Self-sent message with quarterly document review request	Sublime Security	1mo ago Jan 21st, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-self-sent-message-with-quarterly-document-review-request-3c42cec6
Link: SharePoint filename matches org name	Sublime Security	1mo ago Feb 6th, 2026	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	3mo 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 go.php redirect with document lure	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis	/feeds/core/detection-rules/link-suspicious-gophp-redirect-with-document-lure-f3d8c227
Link: Suspicious SharePoint document name	Sublime Security	25d ago Feb 13th, 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	17d ago Feb 21st, 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	1mo 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	1mo 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	1mo 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	7mo 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 fragment with hexadecimal pattern obfuscation	Sublime Security	1mo ago Jan 29th, 2026	Credential Phishing Evasion Content analysis URL analysis	/feeds/core/detection-rules/link-url-fragment-with-hexadecimal-pattern-obfuscation-51f51aa0
Link: URL scheme obfuscation via split HTML anchors	Sublime Security	1mo 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: URL shortener with copy-paste instructions and credential theft language	Sublime Security	1mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis	/feeds/core/detection-rules/link-url-shortener-with-copy-paste-instructions-and-credential-theft-language-a0a2c573
Link: Webflow link from unsolicited sender	Sublime Security	7mo 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: WordPress login page with Blogspot Binance scam	Sublime Security	21d ago Feb 17th, 2026	Credential Phishing BEC/Fraud Social engineering Free subdomain host Impersonation: Brand Content analysis URL analysis	/feeds/core/detection-rules/link-wordpress-login-page-with-blogspot-binance-scam-909dfae5
Link: Zoho form link from unsolicited sender	Sublime Security	7mo 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	1mo 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	7mo 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	1mo 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	5mo 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	7mo 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	1mo 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	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-givinglluhorg-a2bf1099
Open redirect (go2.aspx) leading to Microsoft credential phishing	Sublime Security	1mo 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	1mo 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	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-marketingedinburghairportcom-33a47565

478 Rules

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