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
Service abuse: Conceptboard VIP impersonation lure	Sublime Security	16d ago Oct 9th, 2026	BEC/Fraud Spam Impersonation: VIP Social engineering Content analysis Sender analysis
Service abuse: Coursera callback scam	Sublime Security	3mo ago Jul 21st, 2026	Callback Phishing Impersonation: Brand Lookalike domain Social engineering Sender analysis URL analysis Whois
Service abuse: Demio notifications with suspicious content patterns	Sublime Security	5mo ago May 11th, 2026	Spam Social engineering Impersonation: Brand Sender analysis Content analysis
Service abuse: DocSend share from an unsolicited reply-to address	Sublime Security	4mo ago Jun 18th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis
Service abuse: DocSend share from newly registered domain	Sublime Security	9mo ago Jan 12th, 2026	BEC/Fraud Credential Phishing Evasion Free file host Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis
Service abuse: DocuSign notification with suspicious sender or document name	Sublime Security	1y ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: DocuSign share from an unsolicited reply-to address	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Evasion Free file host Social engineering Content analysis Header analysis Sender analysis
Service abuse: Domains By Proxy sender	Sublime Security	7mo ago Mar 18th, 2026	Spam Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Service abuse: Dropbox Paper with copy-paste instructions	Sublime Security	5mo ago May 7th, 2026	Credential Phishing Social engineering Free file host Evasion Content analysis URL analysis
Service abuse: Dropbox share from an unsolicited reply-to address	Sublime Security	1y ago Aug 5th, 2025	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: Dropbox share from new domain	Sublime Security	9mo ago Jan 12th, 2026	Callback Phishing Credential Phishing BEC/Fraud Evasion Social engineering Content analysis Sender analysis Header analysis
Service abuse: Dropbox share with suspicious sender or document name	Sublime Security	27d ago Sep 28th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: Elastic alerts extortion	Sublime Security	5mo ago May 21st, 2026	Extortion Impersonation: Brand Social engineering Natural Language Understanding Sender analysis
Service abuse: Evernote link	Sublime Security	2mo ago Aug 5th, 2026	Credential Phishing BEC/Fraud Social engineering URL analysis Natural Language Understanding
Service Abuse: ExactTarget with suspicious sender indicators	Sublime Security	11mo ago Nov 8th, 2025	Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Service abuse: Facebook business with action required subject	Sublime Security	6mo ago Apr 22nd, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis
Service abuse: Facebook mail notification callback scam	Sublime Security	2mo ago Aug 25th, 2026	Callback Phishing Impersonation: Brand Social engineering Spoofing Sender analysis Natural Language Understanding
Service abuse: Fake loan/funding verification lure via Mailgun	Sublime Security	3mo ago Jun 29th, 2026	Credential Phishing Impersonation: Brand Evasion Social engineering Sender analysis URL analysis Content analysis
Service abuse: FileMail callback scam	Sublime Security	3mo ago Jul 24th, 2026	Callback Phishing Social engineering Free file host Out of band pivot Natural Language Understanding Sender analysis Content analysis
Service abuse: Filemail file-sharing notifications	Sublime Security	9d ago Oct 16th, 2026	Malware/Ransomware BEC/Fraud Free file host Social engineering Spoofing Header analysis HTML analysis Content analysis
Service abuse: File sharing impersonation with external SharePoint links	Sublime Security	7mo ago Mar 9th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis URL analysis Sender analysis
Service abuse: FlipHTML5 with attachment deception and credential theft language	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Social engineering Free file host Evasion Content analysis Natural Language Understanding URL analysis
Service abuse: Formester with suspicious link behavior	Sublime Security	10mo ago Dec 19th, 2025	Credential Phishing BEC/Fraud Open redirect Social engineering Free file host Computer Vision Content analysis URL analysis URL screenshot
Service abuse: Freshbooks callback scam	Sublime Security	4d ago Oct 21st, 2026	Callback Phishing Social engineering Natural Language Understanding Sender analysis
Service abuse: GetAccept callback scam content	Sublime Security	9mo ago Jan 16th, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis
Service abuse: GitHub notification with excessive mentions and suspicious links	Sublime Security	6mo ago Apr 7th, 2026	Credential Phishing Malware/Ransomware Free file host Free subdomain host Social engineering Header analysis URL analysis Sender analysis Whois
Service abuse: Google account notification with links to free file host	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Impersonation: Brand Social engineering Free file host Header analysis URL analysis Sender analysis
Service abuse: Google Calendar notification with callback scam language	Sublime Security	6mo ago Apr 28th, 2026	Callback Phishing ICS Phishing Out of band pivot Social engineering Natural Language Understanding Content analysis Sender analysis
Service abuse: Google callback scam	Sublime Security	19d ago Oct 6th, 2026	Callback Phishing Impersonation: Brand Spoofing Social engineering Natural Language Understanding Sender analysis
Service abuse: Google classroom solicitation	Sublime Security	9mo ago Jan 12th, 2026	Callback Phishing BEC/Fraud Impersonation: Brand Out of band pivot Social engineering Content analysis Header analysis Sender analysis
Service abuse: Google Drive share from an unsolicited reply-to address	Sublime Security	1y ago Aug 5th, 2025	BEC/Fraud Callback Phishing Credential Phishing Free email provider Social engineering Free file host Header analysis Sender analysis
Service abuse: Google Drive share from new reply-to domain	Sublime Security	11mo ago Nov 13th, 2025	BEC/Fraud Callback Phishing Credential Phishing Free email provider Social engineering Free file host Header analysis Sender analysis Whois
Service abuse: Google Firebase sender address with suspicious content	Sublime Security	4mo ago Jun 18th, 2026	Spam Credential Phishing Free subdomain host Social engineering Content analysis Header analysis HTML analysis Natural Language Understanding Sender analysis URL analysis Whois
Service abuse: Google Groups callback scam	Sublime Security	4mo ago Jun 4th, 2026	Callback Phishing Free email provider Social engineering Natural Language Understanding Sender analysis
Service abuse: Google OAuth with suspicious redirect destination	Sublime Security	5mo ago May 27th, 2026	Credential Phishing Evasion Free file host Free subdomain host Open redirect Social engineering URL analysis Threat intelligence
Service abuse: HelloSign from an unsolicited sender address	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing Social engineering Free file host Evasion HTML analysis Sender analysis Header analysis
Service Abuse: HelloSign share with suspicious sender or document name	Sublime Security	4mo ago May 28th, 2026	Callback Phishing BEC/Fraud Evasion Social engineering Sender analysis Header analysis Content analysis
Service abuse: IBM IAM account notification with callback scam indicators	Sublime Security	4mo ago Jun 16th, 2026	Callback Phishing Impersonation: Brand Social engineering Out of band pivot Sender analysis Content analysis Natural Language Understanding
Service abuse: Kagoya.net-hosted domains sending English business lures	Sublime Security	1mo ago Aug 27th, 2026	BEC/Fraud Spam Impersonation: Brand Social engineering Spoofing Natural Language Understanding Header analysis Sender analysis
Service abuse: Lovable-hosted redirect to external phishing page	Sublime Security	19d ago Oct 6th, 2026	Credential Phishing Social engineering Open redirect Free subdomain host URL analysis HTML analysis Content analysis
Service abuse: Microsoft Forms Pro with suspicious links or QR codes	Sublime Security	3mo ago Jul 14th, 2026	Credential Phishing QR code Social engineering Impersonation: Brand URL analysis QR code analysis Sender analysis Whois Content analysis
Service abuse: Microsoft messaging with Cloudflare Turnstile-gated link	Sublime Security	2d ago Oct 23rd, 2026	Credential Phishing Evasion Social engineering URL analysis Content analysis Sender analysis
Service abuse: Microsoft Power Apps callback scam	Sublime Security	23d ago Oct 2nd, 2026	Callback Phishing Impersonation: Brand Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis
Service abuse: Microsoft Power Automate callback scam impersonation	Sublime Security	7mo ago Mar 5th, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis
Service abuse: Microsoft Power BI callback scam	Sublime Security	9mo ago Jan 22nd, 2026	Callback Phishing Out of band pivot Social engineering Content analysis Natural Language Understanding Sender analysis
Service abuse: Microsoft with suspicious indicators in subject	Sublime Security	3mo ago Jul 27th, 2026	Credential Phishing Spam Impersonation: Brand Social engineering Sender analysis Content analysis
Service abuse: Monday.com callback scam	Sublime Security	9mo ago Jan 26th, 2026	Callback Phishing Social engineering Out of band pivot Content analysis Natural Language Understanding Sender analysis
Service abuse: Monday.com infrastructure with phishing intent	Sublime Security	25d ago Sep 30th, 2026	Credential Phishing Evasion Social engineering QR code Content analysis File analysis Header analysis QR code analysis Sender analysis URL analysis
Service abuse: MongoDB Atlas callback scam	Sublime Security	5mo ago Apr 28th, 2026	Callback Phishing Impersonation: Brand Social engineering Natural Language Understanding Sender analysis
Service abuse: Notion free-tier account impersonating VIP	Sublime Security	2mo ago Aug 14th, 2026	Credential Phishing Impersonation: VIP Social engineering Sender analysis Header analysis URL analysis Content analysis

850 Rules

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