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
Job scam (unsolicited sender)	Sublime Security	10mo ago Nov 3rd, 2025	BEC/Fraud Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Job scam with specific salary pattern	Sublime Security	21d ago Aug 20th, 2026	BEC/Fraud Social engineering Content analysis Natural Language Understanding Header analysis Sender analysis
Link abuse: Self-service creation platform link with suspicious recipient behavior	Sublime Security	9mo ago Dec 2nd, 2025	BEC/Fraud Credential Phishing Spam Free email provider Social engineering Header analysis Sender analysis URL analysis
Link: Base64 encoded recipient address in URL fragment with subject hash	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Encryption Evasion Social engineering Content analysis URL analysis Header analysis
Link: BEC with newly registered domains and financial keywords	Sublime Security	4mo ago May 1st, 2026	BEC/Fraud Social engineering Evasion Spoofing Header analysis Sender analysis URL analysis
Link: Credential phishing link with undisclosed recipients	Sublime Security	17d ago Aug 24th, 2026	Credential Phishing Evasion Computer Vision Header analysis URL screenshot
Link: Credential phishing traversing Russian infrastructure	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: Credential phishing via WordPress	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering Free subdomain host URL analysis Header analysis Computer Vision
Link: Cryptocurrency fraud with suspicious links	Sublime Security	9mo ago Dec 1st, 2025	BEC/Fraud Social engineering Evasion Free subdomain host Scripting Content analysis Header analysis Javascript analysis Natural Language Understanding Sender analysis URL analysis URL screenshot Whois
Link: Direct link to riddle.com hosted showcase	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Free file host Sender analysis URL analysis Header analysis
Link: Direct link to Zoom Docs from non-Zoom sender	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering Impersonation: Brand Header analysis URL analysis Sender analysis
Link: Display text matches subject line	Sublime Security	9mo ago Nov 14th, 2025	BEC/Fraud Credential Phishing Social engineering Evasion Header analysis Content analysis Natural Language Understanding URL analysis
Link: Executable file download with suspicious message content	Sublime Security	10mo ago Oct 16th, 2025	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis
Link: Fake RFP/bid reference number lure	Sublime Security	16d ago Aug 25th, 2026	Credential Phishing BEC/Fraud Spam Social engineering Impersonation: Brand Spoofing Content analysis URL analysis Header analysis Sender analysis
Link: File sharing impersonation with suspicious language and sending patterns	Sublime Security	4mo ago Apr 30th, 2026	BEC/Fraud Credential Phishing Social engineering Free subdomain host Impersonation: Brand Natural Language Understanding URL analysis Sender analysis Header analysis Content analysis
Link: Free file hosting with undisclosed recipients	Sublime Security	5mo ago Mar 19th, 2026	Credential Phishing Malware/Ransomware Free file host Free subdomain host Evasion Header analysis URL analysis Sender analysis Natural Language Understanding
Link: Free subdomain host with undisclosed recipients	Sublime Security	8mo ago Jan 12th, 2026	Free subdomain host Header analysis URL analysis
Link: Generic financial document with proceedural timeline template	Sublime Security	2mo ago Jul 10th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Natural Language Understanding Header analysis Sender analysis
Link: Intuit link abuse with file share context	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering URL analysis Natural Language Understanding Content analysis Header analysis
Link: Invalid reply-to with recipient details in subject, body, and encoded link	Sublime Security	1mo ago Jul 16th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Spoofing Header analysis Content analysis URL analysis Sender analysis
Link: Microsoft protected message with suspicious recipient patterns	Sublime Security	14d ago Aug 27th, 2026	Credential Phishing Evasion Social engineering Content analysis File analysis Header analysis Sender analysis URL analysis
Link: Mismatched Shopify template button href	Sublime Security	21d ago Aug 20th, 2026	Credential Phishing Evasion Social engineering HTML analysis URL analysis Header analysis Sender analysis
Link: Multistage landing - Abused Adobe Acrobat hosted PDF	Sublime Security	1mo ago Jul 14th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Optical Character Recognition URL analysis Header analysis Sender analysis
Link: Multistage landing - Ludus presentation	Sublime Security	1y 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
Link: .onion From Unsolicited Sender	Sublime Security	1y ago Jul 30th, 2025	Malware/Ransomware Credential Phishing Evasion Social engineering URL analysis Header analysis Sender analysis
Link: PDF filename impersonation with credential theft language	Sublime Security	6mo ago Feb 12th, 2026	Credential Phishing Social engineering Evasion PDF Content analysis Natural Language Understanding Header analysis Sender analysis URL analysis
Link: Personalized URL with recipient address on commonly abused web service	Sublime Security	5mo ago Apr 1st, 2026	Credential Phishing Malware/Ransomware Free file host Social engineering URL analysis Header analysis
Link: Personal SharePoint with invalid recipients and credential theft language	Sublime Security	7mo ago Jan 23rd, 2026	Credential Phishing Social engineering Content analysis Header analysis Natural Language Understanding URL analysis
Link: Recipient domain in URL path	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Lookalike domain Header analysis Sender analysis URL analysis
Link: Referrer anonymization service from untrusted sender	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Open redirect Evasion Header analysis URL analysis Sender analysis
Link: Romance/Sexual Language With Suspicious Link	Sublime Security	2mo ago Jun 17th, 2026	Spam Social engineering Content analysis Header analysis URL analysis Whois
Link: Self-sender credential theft with configuration placeholder	Sublime Security	3mo ago May 27th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis Header analysis
Link: Self-sender with sender org in subject and credential theft indicator	Sublime Security	16d ago Aug 25th, 2026	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis Sender analysis URL analysis Header analysis
Link: Self-sent message with quarterly document review request	Sublime Security	2mo ago Jun 26th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Header analysis Sender analysis URL analysis
Link: Self-sent PDF lure with subject correlation	Sublime Security	3mo ago Jun 4th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Header analysis HTML analysis Sender analysis Content analysis
Link: SharePoint OneNote or PDF link with self sender behavior	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing Evasion Free file host OneNote PDF Header analysis URL analysis Sender analysis
Link: Shortened URL with fragment matching subject	Sublime Security	5mo ago Apr 9th, 2026	Credential Phishing BEC/Fraud Evasion Social engineering Content analysis URL analysis Header analysis
Link: Single character path with credential theft body and self sender behavior or invalid recipient	Sublime Security	4mo ago Apr 24th, 2026	Credential Phishing Evasion Social engineering Natural Language Understanding URL analysis Sender analysis Header analysis
Link: Squarespace infrastructure abuse	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Spam Impersonation: Brand Social engineering Header analysis URL analysis Sender 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 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: Uncommon SharePoint document type with sender's display name	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering OneNote PDF Content analysis Header analysis HTML 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
Mass campaign: Cross Site Scripting (XSS) attempt	Sublime Security	1y 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	8mo ago Jan 12th, 2026	Credential Phishing Social engineering Header analysis Natural Language Understanding Sender 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
Newly registered sender or reply-to domain with newly registered linked domain	Sublime Security	1y ago Aug 5th, 2025	BEC/Fraud Credential Phishing Malware/Ransomware Social engineering Header analysis URL analysis Whois
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

436 Rules

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