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
Attachment: ICS with embedded Javascript in SVG file	Sublime Security	1mo ago Jan 29th, 2026	Credential Phishing Malware/Ransomware Scripting Evasion File analysis Javascript analysis Sender analysis	/feeds/core/detection-rules/attachment-ics-with-embedded-javascript-in-svg-file-d5201a19
Attachment: Invoice and W-9 PDFs with suspicious creators	Sublime Security	1mo ago Jan 21st, 2026	BEC/Fraud PDF Social engineering Impersonation: Brand File analysis Optical Character Recognition Exif analysis Content analysis	/feeds/core/detection-rules/attachment-invoice-and-w-9-pdfs-with-suspicious-creators-305d6e32
Attachment: JavaScript file with suspicious base64-encoded executable	Sublime Security	2y ago Apr 1st, 2024	Malware/Ransomware Evasion Scripting Archive analysis File analysis YARA	/feeds/core/detection-rules/attachment-javascript-file-with-suspicious-base64-encoded-executable-b8db0cf3
Attachment: Legal themed message or PDF with suspicious indicators	Sublime Security	1mo ago Feb 5th, 2026	Credential Phishing Extortion BEC/Fraud Evasion PDF Social engineering Content analysis File analysis Natural Language Understanding Optical Character Recognition URL analysis Whois Header analysis Exif analysis	/feeds/core/detection-rules/attachment-legal-themed-message-or-pdf-with-suspicious-indicators-19133301
Attachment: Link file with UNC path	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion LNK File analysis	/feeds/core/detection-rules/attachment-link-file-with-unc-path-3b7ee0fb
Attachment: Link to Doubleclick.net open redirect	Sublime Security	7mo ago Aug 5th, 2025	BEC/Fraud Credential Phishing Evasion Open redirect Social engineering Content analysis File analysis URL analysis	/feeds/core/detection-rules/attachment-link-to-doubleclicknet-open-redirect-506c16cc
Attachment: LNK file	@ajpc500	3y ago Aug 21st, 2023	Malware/Ransomware LNK Archive analysis File analysis	/feeds/core/detection-rules/attachment-lnk-file-44532abe
Attachment: LNK with embedded content	@ajpc500	1mo ago Jan 12th, 2026	Malware/Ransomware Exploit LNK Scripting Content analysis Exif analysis File analysis	/feeds/core/detection-rules/attachment-lnk-with-embedded-content-41452f7a
Attachment: Macro files containing MHT content	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Evasion Macros Scripting Archive analysis File analysis Macro analysis	/feeds/core/detection-rules/attachment-macro-files-containing-mht-content-4d54e40b
Attachment: Macro with suspected use of COM ShellBrowserWindow object for process creation	@ajpc500	1mo ago Jan 12th, 2026	Malware/Ransomware Macros Scripting Content analysis File analysis Macro analysis	/feeds/core/detection-rules/attachment-macro-with-suspected-use-of-com-shellbrowserwindow-object-for-process-creation-527fc7f0
Attachment: Malformed OLE file	Sublime Security	2y ago Nov 25th, 2024	Credential Phishing Malware/Ransomware Evasion File analysis YARA	/feeds/core/detection-rules/attachment-malformed-ole-file-5aadc68f
Attachment: Malicious OneNote commands	@Kyle_Parrish_	1mo ago Jan 12th, 2026	Malware/Ransomware OneNote Scripting Archive analysis Content analysis File analysis YARA	/feeds/core/detection-rules/attachment-malicious-onenote-commands-7319f0eb
Attachment: Microsoft 365 credential phishing	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Optical Character Recognition Sender analysis	/feeds/core/detection-rules/attachment-microsoft-365-credential-phishing-edce0229
Attachment: Microsoft impersonation via PDF with link and suspicious language	Sublime Security	7mo ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Image as content Impersonation: Brand PDF Scripting Social engineering Computer Vision File analysis Header analysis Natural Language Understanding Sender analysis	/feeds/core/detection-rules/attachment-microsoft-impersonation-via-pdf-with-link-and-suspicious-language-70d41c7f
Attachment: MSI installer file	@ajpc500	7mo ago Aug 5th, 2025	Malware/Ransomware Evasion Archive analysis File analysis	/feeds/core/detection-rules/attachment-msi-installer-file-ae17b1a9
Attachment: MS Office or RTF file with Shell.Explorer.1 com object with embedded LNK	Sublime Security	1mo ago Jan 28th, 2026	Malware/Ransomware Evasion File analysis YARA	/feeds/core/detection-rules/attachment-ms-office-or-rtf-file-with-shellexplorer1-com-object-with-embedded-lnk-53a29f61
Attachment: Office document loads remote document template	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Archive analysis File analysis URL analysis	/feeds/core/detection-rules/attachment-office-document-loads-remote-document-template-d9601104
Attachment: Office document with VSTO add-in	@vector_sec	1mo ago Jan 12th, 2026	Malware/Ransomware Scripting Archive analysis Content analysis Exif analysis File analysis Sender analysis URL analysis	/feeds/core/detection-rules/attachment-office-document-with-vsto-add-in-27afa730
Attachment: Office file contains OLE relationship to credential phishing page	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering File analysis HTML analysis Natural Language Understanding OLE analysis URL analysis	/feeds/core/detection-rules/attachment-office-file-contains-ole-relationship-to-credential-phishing-page-d55793d0
Attachment: Office file with credential phishing URLs	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering File analysis URL analysis Archive analysis Content analysis	/feeds/core/detection-rules/attachment-office-file-with-credential-phishing-urls-b2cae98d
Attachment: Office file with document sharing and browser instruction lures	Sublime Security	1mo ago Jan 29th, 2026	Credential Phishing Social engineering Evasion Archive analysis File analysis Macro analysis Optical Character Recognition Content analysis	/feeds/core/detection-rules/attachment-office-file-with-document-sharing-and-browser-instruction-lures-b1250a4b
Attachment: Office file with suspicious function calls or downloaded file path	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting Archive analysis File analysis	/feeds/core/detection-rules/attachment-office-file-with-suspicious-function-calls-or-downloaded-file-path-4c78b969
Attachment: Password-protected PDF with fake document indicators	Sublime Security	1mo ago Jan 21st, 2026	Malware/Ransomware Credential Phishing Encryption Evasion PDF File analysis YARA Exif analysis	/feeds/core/detection-rules/attachment-password-protected-pdf-with-fake-document-indicators-b45e4440
Attachment: PDF contains W9 or invoice YARA signatures	Sublime Security	1mo ago Feb 4th, 2026	BEC/Fraud Credential Phishing PDF Social engineering File analysis YARA	/feeds/core/detection-rules/attachment-pdf-contains-w9-or-invoice-yara-signatures-9a8e8a98
Attachment: PDF file with link to fake Bitcoin exchange	Sublime Security	1mo ago Jan 12th, 2026	BEC/Fraud Free email provider Impersonation: Brand PDF Social engineering Exif analysis File analysis Sender analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-file-with-link-to-fake-bitcoin-exchange-47601cb7
Attachment: PDF file with low reputation links to suspicious filetypes (unsolicited)	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis File analysis Sender analysis	/feeds/core/detection-rules/attachment-pdf-file-with-low-reputation-links-to-suspicious-filetypes-unsolicited-6144f880
Attachment: PDF file with low reputation link to ZIP file (unsolicited)	Michael Tingle	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis File analysis Natural Language Understanding Sender analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-file-with-low-reputation-link-to-zip-file-unsolicited-d1ee2859
Attachment: PDF generated with wkhtmltopdf tool and default title	Sublime Security	2mo ago Dec 19th, 2025	BEC/Fraud Callback Phishing Credential Phishing Malware/Ransomware PDF Evasion File analysis Exif analysis	/feeds/core/detection-rules/attachment-pdf-generated-with-wkhtmltopdf-tool-and-default-title-64e6c8a8
Attachment: PDF Object Hash - Encrypted PDFs with fake payment notification	Sublime Security	8d ago Mar 2nd, 2026	Malware/Ransomware PDF Evasion File analysis Threat intelligence	/feeds/core/detection-rules/attachment-pdf-object-hash-encrypted-pdfs-with-fake-payment-notification-a8a19bae
Attachment: PDF with a suspicious string and single URL	Sublime Security	8d ago Mar 2nd, 2026	Credential Phishing PDF Social engineering Evasion Content analysis File analysis URL analysis Exif analysis	/feeds/core/detection-rules/attachment-pdf-with-a-suspicious-string-and-single-url-3bdbb7ad
Attachment: PDF with credential theft language and link to a free subdomain (unsolicited)	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Free subdomain host PDF Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-with-credential-theft-language-and-link-to-a-free-subdomain-unsolicited-90f4ef4e
Attachment: PDF with link to DMG file download	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis Content analysis File analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-with-link-to-dmg-file-download-2c486fe0
Attachment: PDF with link to zip containing a wsf file	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis Content analysis File analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-with-link-to-zip-containing-a-wsf-file-93bc7db4
Attachment: PDF with Microsoft Purview message impersonation	Sublime Security	3mo ago Nov 10th, 2025	Credential Phishing Impersonation: Brand PDF Social engineering File analysis Natural Language Understanding Content analysis	/feeds/core/detection-rules/attachment-pdf-with-microsoft-purview-message-impersonation-571d4964
Attachment: PDF with multistage landing - ClickUp abuse	Sublime Security	11d ago Feb 27th, 2026	Credential Phishing Evasion Free file host Free subdomain host PDF Social engineering File analysis URL analysis Whois	/feeds/core/detection-rules/attachment-pdf-with-multistage-landing-clickup-abuse-0dc40316
Attachment: PDF with password in filename matching body text	Sublime Security	19d ago Feb 19th, 2026	Malware/Ransomware Credential Phishing Encryption Evasion PDF Content analysis File analysis	/feeds/core/detection-rules/attachment-pdf-with-password-in-filename-matching-body-text-2c9c3b24
Attachment: PDF with personal Microsoft OneNote URL	Sublime Security	3mo ago Dec 4th, 2025	Credential Phishing PDF Social engineering File analysis Content analysis	/feeds/core/detection-rules/attachment-pdf-with-personal-microsoft-onenote-url-0675bbc5
Attachment: PDF with recipient email in link	Sublime Security	7d ago Mar 3rd, 2026	Credential Phishing PDF QR code Encryption Social engineering File analysis QR code analysis URL analysis	/feeds/core/detection-rules/attachment-pdf-with-recipient-email-in-link-0399d08f
Attachment: PDF with ReportLab library and default metadata	Sublime Security	11d ago Feb 27th, 2026	Credential Phishing PDF Evasion File analysis Exif analysis	/feeds/core/detection-rules/attachment-pdf-with-reportlab-library-and-default-metadata-7094bfdd
Attachment: PDF with suspicious HeadlessChrome metadata	Sublime Security	2mo ago Jan 8th, 2026	Credential Phishing Malware/Ransomware Evasion PDF File analysis Exif analysis	/feeds/core/detection-rules/attachment-pdf-with-suspicious-headlesschrome-metadata-eda99b1d
Attachment: PDF with suspicious language and redirect to suspicious file type	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Evasion PDF File analysis Natural Language Understanding Optical Character Recognition URL analysis	/feeds/core/detection-rules/attachment-pdf-with-suspicious-language-and-redirect-to-suspicious-file-type-adda3c3f
Attachment: PDF with suspicious link and action-oriented language	Sublime Security	4d ago Mar 6th, 2026	Credential Phishing PDF Social engineering Evasion File analysis URL analysis Content analysis URL screenshot	/feeds/core/detection-rules/attachment-pdf-with-suspicious-link-and-action-oriented-language-816d33a0
Attachment: Potential sandbox evasion in Office file	@ajpc500	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion Macros File analysis Macro analysis	/feeds/core/detection-rules/attachment-potential-sandbox-evasion-in-office-file-1c591681
Attachment: PowerPoint with suspicious hyperlink	Sublime Security	1mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting Exif analysis File analysis	/feeds/core/detection-rules/attachment-powerpoint-with-suspicious-hyperlink-0a999fb1
Attachment: PowerShell content	@ajpc500	7mo ago Aug 5th, 2025	Malware/Ransomware Scripting Archive analysis File analysis	/feeds/core/detection-rules/attachment-powershell-content-c12566db
Attachment: QR code link with base64-encoded recipient address	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing QR code Image as content Social engineering Evasion PDF Macros Computer Vision File analysis Natural Language Understanding QR code analysis Sender analysis	/feeds/core/detection-rules/attachment-qr-code-link-with-base64-encoded-recipient-address-927a0c1a
Attachment: QR code with encoded recipient targeting and redirect indicators	Sublime Security	1mo ago Jan 30th, 2026	Credential Phishing QR code Evasion Image as content Open redirect Archive analysis File analysis QR code analysis URL analysis	/feeds/core/detection-rules/attachment-qr-code-with-encoded-recipient-targeting-and-redirect-indicators-5d51e565
Attachment: QR code with recipient targeting and special characters	Sublime Security	17d ago Feb 21st, 2026	Credential Phishing QR code Social engineering Evasion File analysis QR code analysis URL analysis Computer Vision	/feeds/core/detection-rules/attachment-qr-code-with-recipient-targeting-and-special-characters-fc9e1c09
Attachment: QR code with suspicious URL patterns in EML file	Sublime Security	17d ago Feb 21st, 2026	Credential Phishing QR code Evasion Social engineering Archive analysis File analysis QR code analysis URL analysis	/feeds/core/detection-rules/attachment-qr-code-with-suspicious-url-patterns-in-eml-file-2289acd5
Attachment: QR code with userinfo portion	Sublime Security	1mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Image as content PDF QR code QR code analysis File analysis Sender analysis	/feeds/core/detection-rules/attachment-qr-code-with-userinfo-portion-9d62cc5c

244 Rules

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