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 Apr 24th, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Link: Suspicious go.php redirect with document lure	Sublime Security	2mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Link: Suspicious URL with recipient targeting and special characters	Sublime Security	2mo ago Feb 21st, 2026	Credential Phishing Social engineering Evasion URL analysis Content analysis
Link: Tax document lure Portuguese/Spanish with suspicious domains	Sublime Security	11d ago Apr 14th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Free file host Free subdomain host Social engineering Content analysis URL analysis Whois
Link to auto-downloaded disk image in encrypted zip	@ajpc500	3mo 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 encrypted zip	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Encryption Evasion Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to auto-downloaded file with Adobe branding	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Impersonation: Brand Social engineering File analysis Optical Character Recognition Sender analysis URL analysis URL screenshot
Link to auto-downloaded file with Google Drive branding	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Impersonation: Brand Social engineering Content analysis File analysis Optical Character Recognition URL analysis URL screenshot
Link to auto-download of a suspicious file type (unsolicited)	Sublime Security	3mo ago Jan 12th, 2026	Malware/Ransomware Encryption Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis YARA
Link to Google Apps Script macro (unsolicited)	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Open redirect Social engineering Sender analysis URL analysis
Link to Google Apps Script macro via comment tagging	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Social engineering Content analysis Sender analysis URL analysis
Link: Uncommon SharePoint document type with sender's display name	Sublime Security	8mo ago Aug 5th, 2025	Credential Phishing Social engineering OneNote PDF Content analysis Header analysis HTML analysis URL analysis
Link: Unsolicited email contains link leading to Tycoon URL structure	Sublime Security	1mo 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	1mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis URL screenshot
Link: URL scheme obfuscation via split HTML anchors	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing BEC/Fraud Evasion HTML injection Social engineering Content analysis HTML analysis URL analysis
Link: URL shortener with copy-paste instructions and credential theft language	Sublime Security	2mo ago Feb 6th, 2026	Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding URL analysis
Link: WordPress admin targeting with recipient identifier in URL fragment	Sublime Security	9d ago Apr 16th, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis
Link: WordPress login page with Blogspot Binance scam	Sublime Security	2mo ago Feb 17th, 2026	Credential Phishing BEC/Fraud Social engineering Free subdomain host Impersonation: Brand Content analysis URL analysis
Lookalike sender domain (untrusted sender)	Sublime Security	1mo ago Mar 25th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Lookalike domain Social engineering Sender analysis
Low reputation link to auto-downloaded HTML file with smuggling indicators	Sublime Security	3mo 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
macOS malware: Compiled AppleScript with document double-extension	Sublime Security	2mo ago Feb 5th, 2026	Malware/Ransomware Evasion Social engineering File analysis Header analysis
Mass campaign: Cross Site Scripting (XSS) attempt	Sublime Security	9mo ago Jul 16th, 2025	Malware/Ransomware Spam Exploit Free email provider Scripting Social engineering Content analysis Header analysis Sender analysis
Mass campaign: recipient address in subject, body, and link (untrusted sender)	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Social engineering Header analysis Natural Language Understanding Sender analysis
Microsoft device code phishing	@ajpc500	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Microsoft infrastructure abuse with suspicious patterns	Sublime Security	3mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Evasion Impersonation: Brand Social engineering Header analysis Sender analysis
Mismatched links: Free file share with urgent language	Sublime Security	8mo ago Aug 5th, 2025	BEC/Fraud Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam Free file host Social engineering Natural Language Understanding Sender analysis URL analysis
Newly registered sender or reply-to domain with newly registered linked domain	Sublime Security	8mo ago Aug 5th, 2025	BEC/Fraud Credential Phishing Malware/Ransomware Social engineering Header analysis URL analysis Whois
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	6mo ago Oct 1st, 2025	Evasion Social engineering Archive analysis Content analysis File analysis Sender analysis
Observed IOC: Malicious domains in body links	Sublime Security	12h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious root domains in body links	Sublime Security	12h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Observed IOC: Malicious sender domains	Sublime Security	12h ago Apr 24th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Sender analysis Header analysis
Observed IOC: Malicious sender email addresses	Sublime Security	12h ago Apr 24th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Email address Social engineering Sender analysis Header analysis
Observed IOC: Malicious sender root domains	Sublime Security	12h ago Apr 24th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Sender analysis Header analysis
Observed IOC: Malicious URLs in body links	Sublime Security	12h ago Apr 24th, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering URL analysis Content analysis
Open redirect: City of Calgary	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Exploit Open redirect Social engineering Sender analysis URL analysis
Open redirect: giving.lluh.org	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL 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: marketing.edinburghairport.com	Sublime Security	11mo 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	11mo 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	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: queue.swytchbike.com	Sublime Security	3mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Open redirect Header analysis URL analysis Sender analysis
Open redirect: slubnaglowie.pl	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect Social engineering Content analysis Header analysis Sender analysis URL analysis
Open redirect: typedrawers.com	Sublime Security	11mo ago May 23rd, 2025	Credential Phishing Evasion Open redirect QR code Social engineering Content analysis File analysis QR code analysis Sender analysis
PayPal invoice abuse	Sublime Security	2mo ago Feb 11th, 2026	BEC/Fraud Callback Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Potential prompt injection attack in body HTML	Sublime Security	3mo ago Jan 12th, 2026	Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam BEC/Fraud Evasion Social engineering Header analysis HTML analysis Content analysis
Punycode sender domain	Sublime Security	3y ago Aug 21st, 2023	Credential Phishing Malware/Ransomware Evasion Lookalike domain Punycode Social engineering Sender analysis
QR code to auto-download of a suspicious file type (unsolicited)	Sublime Security	6mo ago Oct 17th, 2025	Malware/Ransomware Evasion LNK Social engineering Archive analysis File analysis Sender analysis URL analysis QR code analysis
QR Code with suspicious indicators	Sublime Security	3d ago Apr 22nd, 2026	Credential Phishing QR code Social engineering Content analysis Header analysis Computer Vision Natural Language Understanding QR code analysis Sender analysis URL analysis
Reconnaissance: Email address harvesting attempt	Sublime Security	2mo ago Feb 23rd, 2026	BEC/Fraud Credential Phishing Spam Free email provider Social engineering Content analysis Header analysis Sender analysis URL analysis
Reconnaissance: Empty message from uncommon sender	Sublime Security	1mo ago Feb 25th, 2026	Spam Evasion Social engineering Content analysis Header analysis
Reconnaissance: Empty subject with mismatched reply-to from new sender	Sublime Security	2mo ago Feb 6th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Spoofing Header analysis Sender analysis

564 Rules

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