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 Oct 23rd, 2026

Feed Source

GitHub

Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Link: Executable file download with suspicious message content	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis Header analysis
Link: Fake Cloudflare verification landing page	Sublime Security	1mo ago Sep 11th, 2026	Credential Phishing Social engineering URL analysis HTML analysis Header analysis Content analysis
Link: Fake forwarded message with suspicious URL in plain text	Sublime Security	3mo ago Jul 20th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Content analysis Sender analysis URL analysis
Link: Fake RFP/bid reference number lure	Sublime Security	2mo ago Aug 25th, 2026	Credential Phishing BEC/Fraud Spam Social engineering Impersonation: Brand Spoofing Content analysis URL analysis Header analysis Sender analysis
Link: Fake secure message notification template	Sublime Security	4mo ago Jun 25th, 2026	Credential Phishing Evasion Social engineering HTML analysis Content analysis URL analysis
Link: Fake video link from newly registered domain	Sublime Security	1mo ago Sep 8th, 2026	Malware/Ransomware Social engineering Whois URL analysis Sender analysis
Link: Fake webmail hosting	Sublime Security	1mo ago Sep 9th, 2026	Credential Phishing Social engineering HTML analysis URL analysis
Link: Figma design deck with credential theft language	Sublime Security	7mo ago Mar 4th, 2026	Credential Phishing Evasion Free file host Social engineering Natural Language Understanding Computer Vision Optical Character Recognition URL analysis URL screenshot Sender analysis
Link: File sharing impersonation with suspicious language and sending patterns	Sublime Security	5mo 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: File sharing pretext with suspicious body and link	Sublime Security	1y ago Oct 10th, 2025	Credential Phishing Social engineering Evasion Natural Language Understanding Content analysis URL analysis HTML analysis
Link: Financial account issue with suspicious indicators	Sublime Security	7mo ago Mar 24th, 2026	Credential Phishing Free file host Free subdomain host Social engineering Content analysis Natural Language Understanding URL analysis Whois
Link: Flare-branded credential harvesting via Cloudflare tunnels	Sublime Security	4mo ago Jun 12th, 2026	Credential Phishing Free subdomain host Social engineering Content analysis URL analysis
Link: Fraudulent state business filing notice	Sublime Security	3mo ago Jul 14th, 2026	Credential Phishing Free subdomain host Social engineering Impersonation: Brand Content analysis Natural Language Understanding URL analysis
Link: Free file host links from suspicious support sender with credential theft language	Sublime Security	4mo ago Jun 25th, 2026	Credential Phishing Free file host Social engineering Sender analysis URL analysis Natural Language Understanding
Link: Free file host link with 'Important Viewing Note' lure	Sublime Security	3mo ago Jul 15th, 2026	Credential Phishing Free file host Social engineering Impersonation: Brand Content analysis URL analysis Threat intelligence
Link: Generic financial document with proceedural timeline template	Sublime Security	3mo ago Jul 10th, 2026	BEC/Fraud Credential Phishing Social engineering Evasion Content analysis Natural Language Understanding Header analysis Sender analysis
Link: Giveaway lure with amsweb.php redirect path	Sublime Security	17d ago Oct 8th, 2026	Spam BEC/Fraud Impersonation: Brand Social engineering URL analysis
Link: Gmail confidential mode message from new or unsolicited sender	Sublime Security	18d ago Oct 7th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis
Link: Gmail confidential mode message with job scam subject	Sublime Security	18d ago Oct 7th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis
Link: Gmail confidential mode message with suspicious recipient patterns	Sublime Security	18d ago Oct 7th, 2026	Credential Phishing Evasion Social engineering Header analysis Sender analysis URL analysis
Link: Gmail phishkit with suspicious recipient	Sublime Security	1mo ago Sep 2nd, 2026	Credential Phishing Impersonation: Brand Evasion Social engineering URL analysis HTML analysis Sender analysis
Link: Google Calendar invite linking to an open redirect from an untrusted freemail sender	Sublime Security	27d ago Sep 28th, 2026	Spam Free email provider Free file host ICS Phishing Open redirect Social engineering Content analysis Sender analysis URL analysis
Link: Google Cloud Storage hosted credential harvesting page	Sublime Security	3mo ago Jun 30th, 2026	Credential Phishing Free file host Evasion Social engineering Impersonation: Brand URL analysis Content analysis
Link: Google Cloud Storage /index and /unsub link pair	Sublime Security	2d ago Oct 23rd, 2026	Spam Free file host Social engineering URL analysis Content analysis
Link: Google Cloud Storage redirect to external domain	Sublime Security	3mo ago Jun 30th, 2026	Credential Phishing Spam Malware/Ransomware Free file host Open redirect Impersonation: Brand Social engineering Evasion URL analysis Threat intelligence
Link: Google Cloud Storage with base64 go/sub-ID fragment	Sublime Security	19d ago Oct 6th, 2026	Spam Free file host Social engineering Evasion URL analysis
Link: Google Cloud Storage with prefixed base64 dash-record fragment	Sublime Security	19d ago Oct 6th, 2026	Credential Phishing Spam Free file host Social engineering Evasion URL analysis
Link: Google Cloud Storage with short-path link delivery	Sublime Security	19d ago Oct 6th, 2026	Spam Credential Phishing Free file host Evasion Social engineering Impersonation: Brand URL analysis Content analysis
Link: Google Cloud Storage with suffixed unsubscribe bucket	Sublime Security	19d ago Oct 6th, 2026	Spam Credential Phishing Free file host Evasion Social engineering URL analysis
Link: Google Drawings link from new sender	Sublime Security	7mo ago Mar 9th, 2026	Credential Phishing BEC/Fraud Social engineering URL analysis Sender analysis
Link: Google Forms link with credential theft language	Sublime Security	5mo ago May 11th, 2026	Credential Phishing Social engineering Natural Language Understanding Sender analysis URL analysis
Link: Google share.google URL shortener in google.<tld>/share.google path form	Sublime Security	27d ago Sep 28th, 2026	Spam Credential Phishing Open redirect Social engineering URL analysis Content analysis
Link: Hex-encoded recipient email in URL fragment	Sublime Security	1mo ago Sep 16th, 2026	Credential Phishing Encryption Evasion Social engineering URL analysis Content analysis
Link: Hotel booking spoofed display URL	Sublime Security	2mo ago Jul 29th, 2026	BEC/Fraud Credential Phishing Evasion Social engineering URL analysis Sender analysis
Link: HR impersonation with suspicious domain indicators and credential theft	Sublime Security	10mo ago Dec 3rd, 2025	Credential Phishing Impersonation: Employee Social engineering Lookalike domain Content analysis Natural Language Understanding Computer Vision URL analysis URL screenshot
Link: /index.php enclosed in three asterisks	Sublime Security	9mo ago Jan 12th, 2026	Malware/Ransomware Callback Phishing Social engineering Content analysis URL analysis
Link: Invalid reply-to with recipient details in subject, body, and encoded link	Sublime Security	3mo ago Jul 16th, 2026	Credential Phishing BEC/Fraud Social engineering Evasion Spoofing Header analysis Content analysis URL analysis Sender analysis
Link: Invoice or receipt from freemail sender with customer service number	@vector_sec	9mo ago Jan 12th, 2026	BEC/Fraud Callback Phishing Free email provider Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Link: Job recruitment lure from unsolicited sender with suspicious hosting	Sublime Security	6mo ago Apr 7th, 2026	Credential Phishing Social engineering Content analysis Sender analysis URL analysis
Link: Large guest list with suspicious link	Sublime Security	3d ago Oct 22nd, 2026	Credential Phishing Evasion Social engineering Content analysis URL analysis
Link: Malformed subdomain ending in hyphen	Sublime Security	19d ago Oct 6th, 2026	Credential Phishing Social engineering Lookalike domain Impersonation: Brand Impersonation: Employee URL analysis Content analysis
Link: Mamba 2FA phishing kit	Sublime Security	4mo ago Jun 18th, 2026	Credential Phishing Evasion Social engineering URL analysis
Link: Microsoft device code authentication with suspicious indicators	Sublime Security	7mo ago Mar 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion URL analysis URL screenshot Content analysis
Link: Microsoft impersonation using hosted png with suspicious link	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Natural Language Understanding Sender analysis URL analysis
Link: Microsoft protected message with suspicious recipient patterns	Sublime Security	1mo ago Aug 27th, 2026	Credential Phishing Evasion Social engineering Content analysis File analysis Header analysis Sender analysis URL analysis
Link: Mismatched free file host links with document lure	Sublime Security	2mo ago Aug 5th, 2026	BEC/Fraud Credential Phishing Free file host Social engineering Natural Language Understanding URL analysis Content analysis
Link: Mismatched Shopify template button href	Sublime Security	2mo ago Aug 20th, 2026	Credential Phishing Evasion Social engineering HTML analysis URL analysis Header analysis Sender analysis
Link: Monday hosted link with suspicious content	Sublime Security	18d ago Oct 7th, 2026	Credential Phishing BEC/Fraud Social engineering Natural Language Understanding URL analysis Header analysis
Link: Multistage landing - Abused Adobe Acrobat hosted PDF	Sublime Security	1mo ago Sep 11th, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Optical Character Recognition URL analysis Header analysis Sender analysis
Link: Multistage Landing - Abused Buildin.ai	Sublime Security	1y ago Sep 5th, 2025	Credential Phishing Free file host Social engineering URL analysis Natural Language Understanding

850 Rules

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