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

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Link: Suspicious recipient with timeout redirect	Sublime Security	1mo ago Aug 4th, 2026	Credential Phishing Scripting Evasion Social engineering URL analysis Javascript analysis HTML analysis Sender analysis
Link: Suspicious SharePoint document name	Sublime Security	5mo ago Mar 17th, 2026	Credential Phishing Free file host Evasion Content analysis
Link: Suspicious Sharepoint folder share	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Free file host Evasion HTML analysis Header analysis Sender analysis URL analysis
Link: Suspicious URL path with binary character sequence	Sublime Security	4mo ago Apr 27th, 2026	Credential Phishing Evasion URL analysis
Link: Suspicious URL with recipient targeting and special characters	Sublime Security	6mo ago Feb 21st, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: Suspicious wp-admin path from mismatched sender domain	Sublime Security	1mo ago Jul 17th, 2026	Credential Phishing Evasion Social engineering Spoofing URL analysis Sender analysis Header analysis
Link: SVG with embedded recipient data	Sublime Security	2mo ago Jun 12th, 2026	Credential Phishing Evasion URL analysis Content analysis
Link to a domain with punycode characters	@ajpc500	10mo ago Nov 12th, 2025	Credential Phishing Evasion Lookalike domain Punycode Sender analysis URL analysis
Link to auto-downloaded disk image in encrypted zip	@ajpc500	8mo ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to auto-downloaded DMG in archive	Sublime Security	1y ago Jul 16th, 2025	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis URL analysis
Link to auto-downloaded DMG in encrypted zip	Sublime Security	1y ago Jul 16th, 2025	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to auto-download of a suspicious file type (unsolicited)	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link: Tycoon2FA phishing kit (non-exhaustive)	Sublime Security	7mo ago Jan 23rd, 2026	Credential Phishing Free subdomain host Evasion Credential Phishing URL analysis HTML analysis Content analysis
Link: Unformatted template with literal placeholder in mailto link	Sublime Security	1mo ago Aug 3rd, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: Unicode character obfuscation in display name with base64-encoded URL fragment	Sublime Security	1mo ago Aug 3rd, 2026	Credential Phishing Evasion Social engineering URL analysis Sender analysis Content analysis
Link: Unsolicited email contains link leading to Tycoon URL structure	Sublime Security	6mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Natural Language Understanding URL analysis
Link: Unsolicited email contains link to page containing Tycoon URI structure	Sublime Security	6mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis URL screenshot
Link: URL fragmented by hidden spans	Sublime Security	28d ago Aug 13th, 2026	Credential Phishing Evasion Social engineering HTML analysis Content analysis URL analysis
Link: URL fragment with hexadecimal pattern obfuscation	Sublime Security	7mo ago Jan 29th, 2026	Credential Phishing Evasion Content analysis URL analysis
Link: URL path containing /moni/index	Sublime Security	4mo ago Apr 24th, 2026	Credential Phishing Open redirect Evasion URL analysis
Link: URL redirecting to blob URL	Sublime Security	6mo ago Feb 24th, 2026	Credential Phishing Malware/Ransomware Evasion Free file host Open redirect Sender analysis URL analysis Threat intelligence
Link: URL scheme obfuscation via split HTML anchors	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Evasion HTML injection Social engineering Content analysis HTML analysis URL analysis
Link: URL shortener chaining to workers.dev redirect	Sublime Security	1mo ago Aug 10th, 2026	Credential Phishing Open redirect Free subdomain host Social engineering Evasion URL analysis Threat intelligence
Link: URL shortener with copy-paste instructions and credential theft language	Sublime Security	7mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis
Link: URL using underscore-dot substitution in display text	Sublime Security	1mo ago Aug 7th, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis
Link: WordPress admin targeting with recipient identifier in URL parts	Sublime Security	27d ago Aug 14th, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	1mo ago Jul 29th, 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
macOS malware: Compiled AppleScript with document double-extension	Sublime Security	7mo ago Feb 5th, 2026	Malware/Ransomware Evasion Social engineering File analysis Header analysis
Malformed URL prefix	Sublime Security	1mo ago Jul 14th, 2026	Credential Phishing Malware/Ransomware Evasion URL analysis
MalwareBazaar: Malicious attachment hash in archive (trusted reporters)	Sublime Security	4mo ago Apr 29th, 2026	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis Threat intelligence
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
Message traversed multiple onmicrosoft.com tenants	Sublime Security	8mo ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Free subdomain host Sender analysis Header analysis
Microsoft infrastructure abuse with suspicious patterns	Sublime Security	8mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Impersonation: Brand Social engineering Header analysis Sender analysis
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	4mo ago Apr 28th, 2026	Evasion ICS Phishing Social engineering Archive analysis Content analysis File analysis Sender analysis
Notion suspicious file share	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Content analysis Sender analysis URL analysis
Observed IOC: Mail transiting bulletproof host - SmartApe	Sublime Security	14d ago Aug 27th, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Observed IOC: Mail transiting OFAC-sanctioned bulletproof host Aeza Group	Sublime Security	2d ago Sep 8th, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Observed IOC: Malicious attachment SHA-256 hashes	Sublime Security	13d ago Aug 28th, 2026	Malware/Ransomware Credential Phishing Social engineering Evasion Attachment analysis Content analysis
Observed IOC: Malicious domains in body links	Sublime Security	6d ago Sep 4th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious root domains in body links	Sublime Security	6d ago Sep 4th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious URLs in body links	Sublime Security	8d ago Sep 2nd, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Open redirect: Cartoon Network	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Spam Open redirect Evasion Content analysis URL analysis
Open redirect: giving.lluh.org	Sublime Security	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open Redirect: Google domain with /url path and suspicious indicators	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing Evasion Open redirect Computer Vision Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Open redirect: JustPaste.it	Sublime Security	2mo ago Jul 2nd, 2026	Credential Phishing Malware/Ransomware Open redirect Free file host Evasion URL analysis Sender analysis
Open redirect: Klaviyo	Sublime Security	2y ago May 14th, 2024	Credential Phishing Spam Evasion Impersonation: Brand Open redirect Social engineering Content analysis URL analysis
Open redirect: Mailtrack Korea	Sublime Security	3mo ago Jun 4th, 2026	Credential Phishing BEC/Fraud Open redirect Evasion URL analysis
Open redirect: marketing.edinburghairport.com	Sublime Security	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: next2.io	Sublime Security	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: people.anuneo.com	Sublime Security	1y ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis

504 Rules

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