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

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Rule Name & Severity	Author	Last Updated	Labels
Link: Multistage landing - JotForm abuse	Sublime Security	1mo 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 - Ludus presentation	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Evasion Social engineering Impersonation: Brand Header analysis URL analysis Computer Vision URL screenshot Natural Language Understanding Optical Character Recognition Sender analysis	/feeds/core/detection-rules/link-multistage-landing-ludus-presentation-a8b3c311
Link: Multistage landing - Scribd document	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Evasion Social engineering Impersonation: Brand Free file host URL analysis HTML analysis Natural Language Understanding Computer Vision Optical Character Recognition URL screenshot	/feeds/core/detection-rules/link-multistage-landing-scribd-document-afa9807d
Link: Obfuscation via userinfo with excessive URL padding	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Evasion Impersonation: Brand URL analysis	/feeds/core/detection-rules/link-obfuscation-via-userinfo-with-excessive-url-padding-806317a3
Link: .onion From Unsolicited Sender	Sublime Security	5mo ago Jul 30th, 2025	Malware/Ransomware Credential Phishing Evasion Social engineering URL analysis Header analysis Sender analysis	/feeds/core/detection-rules/link-onion-from-unsolicited-sender-9ac0fc83
Link: QR code in EML attachment with credential phishing indicators	Sublime Security	1mo 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: Referrer anonymization service from untrusted sender	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis	/feeds/core/detection-rules/link-referrer-anonymization-service-from-untrusted-sender-9fab2e1e
Link: ScreenConnect installer with suspicious relay domain	Sublime Security	11d 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: Scribd fullscreen link from suspicious sender	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Free file host Social engineering Evasion URL analysis Sender analysis	/feeds/core/detection-rules/link-scribd-fullscreen-link-from-suspicious-sender-9e9bc972
Link: Secure SharePoint file share from new or unusual sender	Sublime Security	11d 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	11d 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	2d 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 files shared from GoDaddy federated tenants	Sublime Security	6mo ago Jul 16th, 2025	Credential Phishing Evasion Sender analysis URL analysis	/feeds/core/detection-rules/link-sharepoint-files-shared-from-godaddy-federated-tenants-0e26cdd2
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	11d ago Jan 12th, 2026	Credential Phishing Free file host Evasion Content analysis	/feeds/core/detection-rules/link-suspicious-sharepoint-document-name-f95fee6e
Link: Suspicious Sharepoint folder share	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Free file host Evasion HTML analysis Header analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-suspicious-sharepoint-folder-share-6168a08c
Link: Suspicious URL with recipient targeting and special characters	Sublime Security	1d 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 a domain with punycode characters	@ajpc500	2mo ago Nov 12th, 2025	Credential Phishing Evasion Lookalike domain Punycode Sender analysis URL analysis	/feeds/core/detection-rules/link-to-a-domain-with-punycode-characters-74b3698c
Link to auto-downloaded disk image in encrypted zip	@ajpc500	11d ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA	/feeds/core/detection-rules/link-to-auto-downloaded-disk-image-in-encrypted-zip-b50f0cb1
Link to auto-downloaded DMG in archive	Sublime Security	6mo ago Jul 16th, 2025	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis URL analysis	/feeds/core/detection-rules/link-to-auto-downloaded-dmg-in-archive-dc04cdd8
Link to auto-downloaded DMG in encrypted zip	Sublime Security	6mo ago Jul 16th, 2025	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA	/feeds/core/detection-rules/link-to-auto-downloaded-dmg-in-encrypted-zip-43af98d3
Link to auto-download of a suspicious file type (unsolicited)	Sublime Security	11d ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis YARA	/feeds/core/detection-rules/link-to-auto-download-of-a-suspicious-file-type-unsolicited-67ae2152
Link: Tycoon2FA phishing kit (non-exhaustive)	Sublime Security	18h 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: URL scheme obfuscation via split HTML anchors	Sublime Security	11d 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
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	11d 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
Malformed URL prefix	Sublime Security	4mo ago Sep 4th, 2025	Credential Phishing Malware/Ransomware Evasion URL analysis	/feeds/core/detection-rules/malformed-url-prefix-4e659d28
MalwareBazaar: Malicious attachment hash in archive (trusted reporters)	Sublime Security	6mo ago Jul 16th, 2025	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis Threat intelligence	/feeds/core/detection-rules/malwarebazaar-malicious-attachment-hash-in-archive-trusted-reporters-9d734281
Malware: Pikabot delivery via URL auto-download	Sublime Security	2y ago Apr 25th, 2024	Malware/Ransomware Evasion Archive analysis File analysis Threat intelligence URL analysis	/feeds/core/detection-rules/malware-pikabot-delivery-via-url-auto-download-f4be4572
Message traversed multiple onmicrosoft.com tenants	Sublime Security	11d ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Free subdomain host Sender analysis Header analysis	/feeds/core/detection-rules/message-traversed-multiple-onmicrosoftcom-tenants-9cf01c0d
Microsoft infrastructure abuse with suspicious patterns	Sublime Security	11d ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Impersonation: Brand Social engineering Header analysis Sender analysis	/feeds/core/detection-rules/microsoft-infrastructure-abuse-with-suspicious-patterns-cfe8e804
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	11d 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: Google domain with /url path and suspicious indicators	Sublime Security	11d 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: Shibboleth SSO Logout Return Parameter	Sublime Security	11d ago Jan 12th, 2026	Credential Phishing Open redirect Evasion HTML analysis URL analysis Sender analysis	/feeds/core/detection-rules/open-redirect-shibboleth-sso-logout-return-parameter-374b7517
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
Open redirect: weblinkconnect.com	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Evasion Open redirect Sender analysis URL analysis	/feeds/core/detection-rules/open-redirect-weblinkconnectcom-967f7a11
Open redirect: Xfinity CMP Redirection to Google AMP	Sublime Security	5mo ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis	/feeds/core/detection-rules/open-redirect-xfinity-cmp-redirection-to-google-amp-c0805b80
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	11d 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
PhaaS: Impact Solutions (Impact Vector Suite)	Sublime Security	3h 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	11d 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
Punycode sender domain	Sublime Security	3y ago Aug 21st, 2023	Credential Phishing Malware/Ransomware Evasion Lookalike domain Punycode Social engineering Sender analysis	/feeds/core/detection-rules/punycode-sender-domain-bc3d8db5
QR code to auto-download of a suspicious file type (unsolicited)	Sublime Security	3mo ago Oct 17th, 2025	Malware/Ransomware Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis QR code analysis	/feeds/core/detection-rules/qr-code-to-auto-download-of-a-suspicious-file-type-unsolicited-eed87ea2

314 Rules

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