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 Sep 9th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Attachment: Web files with suspicious comments	Sublime Security	1y ago Aug 8th, 2025	Credential Phishing Malware/Ransomware HTML smuggling Evasion File analysis HTML analysis Content analysis
Attachment: Word document with hyperlink and fraud language	Sublime Security	6d ago Sep 4th, 2026	Credential Phishing BEC/Fraud Free email provider Social engineering Evasion File analysis XML analysis HTML analysis URL analysis Natural Language Understanding Sender analysis
BEC: Executive coaching vendor impersonation	Sublime Security	2mo ago Jul 1st, 2026	BEC/Fraud Impersonation: Brand Social engineering Content analysis HTML analysis Natural Language Understanding
Body: AI-generated invoice template artifacts	Sublime Security	19d ago Aug 22nd, 2026	Credential Phishing BEC/Fraud Social engineering Spoofing Natural Language Understanding HTML analysis Header analysis Sender analysis
Body: CSS clamp() font obfuscation	Sublime Security	9d ago Sep 1st, 2026	Credential Phishing Evasion Social engineering HTML analysis URL analysis Content analysis
Body: CSS Hidden text via clip-path	Sublime Security	1mo ago Aug 5th, 2026	Spam Credential Phishing Evasion HTML analysis Content analysis
Body: CSS Hidden text via table-column	Sublime Security	7d ago Sep 3rd, 2026	Credential Phishing Spam Evasion HTML analysis Content analysis
Body: CSS zero-value calc() obfuscation	Sublime Security	1mo ago Aug 5th, 2026	Credential Phishing Spam Evasion HTML analysis
Body: CVE-2026-42897 Exchange OWA stored XSS	Sublime Security	11h ago Sep 9th, 2026	Malware/Ransomware Evasion Exploit Scripting Content analysis HTML analysis
Body: Fake secure email portal with HTML obfuscation	Sublime Security	2mo ago Jun 18th, 2026	Credential Phishing Evasion Social engineering Spoofing Content analysis HTML analysis URL analysis Sender analysis Threat intelligence
Body HTML: Comment with 24-character hex token	Sublime Security	9d ago Sep 1st, 2026	Spam Evasion Content analysis HTML analysis
Body HTML: Recipient SLD in HTML class	Sublime Security	11mo ago Sep 23rd, 2025	Credential Phishing Evasion Social engineering HTML analysis Header analysis Sender analysis
Body: HTML whitespace stuffing with short initial message	Sublime Security	13d ago Aug 28th, 2026	Credential Phishing Evasion Social engineering Content analysis HTML analysis Header analysis
Body: Invisible Unicode obfuscation student loan callback phishing	Sublime Security	2mo ago Jun 25th, 2026	BEC/Fraud Credential Phishing Spam Evasion Social engineering HTML analysis Content analysis
Body: Suspicious table template fingerprint	Sublime Security	2mo ago Jun 25th, 2026	Credential Phishing Social engineering Evasion HTML analysis Content analysis
Body: Yellow highlighted text markers	Sublime Security	1mo ago Jul 28th, 2026	Credential Phishing BEC/Fraud Evasion HTML analysis Content analysis
Brand impersonation: Adobe Sign with suspicious indicators	Sublime Security	3mo ago Jun 10th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis Sender analysis
Brand impersonation: Aramco	Sublime Security	21d ago Aug 20th, 2026	BEC/Fraud Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis
Brand impersonation: Binance	Sublime Security	1y ago Sep 3rd, 2025	Credential Phishing Impersonation: Brand Lookalike domain Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis
Brand impersonation: Fake DocuSign HTML table not linking to DocuSign domains	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis HTML analysis Header analysis Sender analysis URL analysis
Brand impersonation: Figma with malicious document access overlay	Sublime Security	3mo ago May 27th, 2026	Credential Phishing Impersonation: Brand Social engineering Image as content Sender analysis HTML analysis URL screenshot Optical Character Recognition URL analysis
Brand impersonation: File sharing notification with template artifacts	Sublime Security	7mo ago Jan 23rd, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion HTML analysis Computer Vision Content analysis Header analysis
Brand impersonation: Greetings Island	Sublime Security	23d ago Aug 18th, 2026	Credential Phishing Malware/Ransomware Impersonation: Brand Social engineering Image as content Spoofing Content analysis Computer Vision Optical Character Recognition Header analysis HTML analysis Sender analysis
Brand impersonation: Microsoft logo image linking to free file host	Sublime Security	20d ago Aug 21st, 2026	Credential Phishing Malware/Ransomware Impersonation: Brand Image as content Free file host Social engineering Computer Vision Optical Character Recognition Exif analysis HTML analysis URL analysis
Brand impersonation: Microsoft logo in HTML with fake quarantine release notification	Sublime Security	9mo ago Dec 10th, 2025	Credential Phishing Evasion Impersonation: Brand Social engineering Content analysis HTML analysis Sender analysis
Brand impersonation: Microsoft Teams invitation	Sublime Security	2mo ago Jun 26th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis URL analysis
Brand impersonation: Paperless Post	Sublime Security	10d ago Aug 31st, 2026	Credential Phishing Malware/Ransomware Impersonation: Brand Content analysis Header analysis HTML analysis Sender analysis URL analysis
Brand impersonation: Zoom	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion Computer Vision Content analysis HTML analysis Natural Language Understanding URL analysis
Brand impersonation: Zoom via HTML styling	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis HTML analysis
Callback phishing: AOL senders with suspicious HTML template or PDF attachment	Sublime Security	4mo ago May 4th, 2026	Callback Phishing Free email provider Social engineering Content analysis Header analysis File analysis HTML analysis Exif analysis Sender analysis
Callback phishing: Zero-width character obfuscation from freemail sender	Sublime Security	1mo ago Aug 5th, 2026	Callback Phishing Free email provider Evasion Social engineering HTML analysis Content analysis Sender analysis
Canva design with suspicious embedded link	Sublime Security	11mo ago Sep 29th, 2025	Credential Phishing Evasion Social engineering Free file host HTML analysis URL analysis Natural Language Understanding Sender analysis
Credential phishing: Blue button styled link with file-sharing template artifacts	Sublime Security	2mo ago Jul 8th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis HTML analysis URL analysis
Credential phishing: Personalized document signing request	Sublime Security	1mo ago Jul 27th, 2026	Credential Phishing BEC/Fraud Impersonation: Brand Social engineering Content analysis HTML analysis
Credential phishing: Suspicious e-sign agreement document notification	Sublime Security	6d ago Sep 4th, 2026	Credential Phishing Social engineering Content analysis Header analysis HTML analysis URL analysis Sender analysis
Credential Phishing: W-2 lure with inline SVG Windows logo	Sublime Security	5mo ago Apr 8th, 2026	Credential Phishing Evasion HTML smuggling Social engineering Content analysis HTML analysis
Credential theft: Gophish abuse with hidden tracking image	Sublime Security	10mo ago Nov 5th, 2025	Spam Evasion Image as content Content analysis HTML analysis
Credential theft: JavaScript date manipulation in HTML body	Sublime Security	1mo ago Jul 28th, 2026	Credential Phishing Evasion Scripting Social engineering HTML analysis Javascript analysis Natural Language Understanding
CVE-2023-5631 - Roundcube Webmail XSS via crafted SVG	Sublime Security	4mo ago Apr 27th, 2026	Malware/Ransomware Evasion Exploit HTML smuggling Scripting Content analysis HTML analysis Sender analysis
Evasion: Hidden content divs from freemail sender	Sublime Security	2mo ago Jun 17th, 2026	Credential Phishing Evasion Free email provider HTML analysis Content analysis Sender analysis
Evasion: Hidden text using CSS-obscured HTML option labels	Sublime Security	9d ago Sep 1st, 2026	Credential Phishing Evasion Social engineering Impersonation: Brand HTML analysis URL analysis Content analysis
Fake Zoho Sign template abuse	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Evasion Open redirect Social engineering Content analysis HTML analysis URL analysis
Google presentation open redirect phishing	Sublime Security	9mo ago Dec 11th, 2025	Credential Phishing Evasion Open redirect Social engineering URL analysis HTML analysis
Google share notification with suspicious comments	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Impersonation: VIP Free file host HTML analysis Header analysis Sender analysis Content analysis
HTML: Bidirectional (BIDI) HTML override with right to left obfuscation	Sublime Security	10d ago Aug 31st, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Scripting Content analysis HTML analysis
HTML content with print styling and credential theft language	Sublime Security	2mo ago Jun 16th, 2026	Credential Phishing Evasion HTML smuggling Social engineering Content analysis HTML analysis Natural Language Understanding
HTML smuggling with atob in message body	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware HTML smuggling Content analysis HTML analysis
HTML: Template placeholders or recipient email in element class attributes	Sublime Security	1mo ago Aug 5th, 2026	Credential Phishing BEC/Fraud Evasion Social engineering HTML analysis Content analysis
Image as content with a link to an open redirect	Sublime Security	3mo ago May 26th, 2026	Credential Phishing Malware/Ransomware Evasion Image as content Open redirect Social engineering Content analysis HTML analysis URL analysis
Impersonation: Chrome Web Store policy	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Impersonation: Brand Free email provider Lookalike domain Content analysis Header analysis HTML analysis Sender analysis URL analysis

161 Rules

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