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

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Service abuse: Trello board invitation with VIP impersonation	Sublime Security	16d ago Oct 9th, 2026	Credential Phishing Impersonation: VIP Social engineering Content analysis Header analysis HTML analysis Sender analysis
Service abuse: Upwork callback scam	Sublime Security	3d ago Oct 22nd, 2026	Callback Phishing Social engineering Out of band pivot Natural Language Understanding Sender analysis
Service abuse: Vimeo with external plain-text links in message	Sublime Security	7mo ago Mar 6th, 2026	Credential Phishing Impersonation: Brand Social engineering Sender analysis Content analysis URL analysis
Service abuse: WeTransfer callback scam	Sublime Security	8mo ago Jan 30th, 2026	Callback Phishing Social engineering Out of band pivot Content analysis Natural Language Understanding Sender analysis
Service abuse: Wix redirect through bulk mailer domains	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Evasion Open redirect URL analysis Sender analysis
Service abuse: Wufoo credential theft	Sublime Security	2mo ago Aug 5th, 2026	Credential Phishing Social engineering Content analysis HTML analysis Natural Language Understanding Sender analysis
Service abuse: Zohodesk reply-to mismatch with job scam indicators	Sublime Security	3mo ago Jul 22nd, 2026	BEC/Fraud Spam Social engineering Out of band pivot Spoofing Header analysis Sender analysis Natural Language Understanding
Service abuse: Zoom Clips with suspicious reply-to address or links	Sublime Security	1mo ago Sep 1st, 2026	Spam Social engineering Evasion Sender analysis Header analysis Whois
Service Abuse: Zoom with freemail reply-to and recipient address in greeting	Sublime Security	5mo ago May 6th, 2026	Spam Free email provider Social engineering Sender analysis Header analysis Content analysis
Service abuse: Zoom with newly registered reply-to domain	Sublime Security	5mo ago May 4th, 2026	Spam Social engineering Evasion Sender analysis Header analysis Whois
Sharepoint link likely unrelated to sender	Sublime Security	1mo ago Sep 23rd, 2026	BEC/Fraud Credential Phishing Impersonation: Employee Lookalike domain OneNote PDF Social engineering URL analysis Sender analysis Header analysis HTML analysis
Sharepoint online with external recipients and external display name	@vector_sec	3y ago Aug 17th, 2023	Credential Phishing Spam Evasion Content analysis Header analysis Sender analysis
Spam: Attendee list solicitation	Sublime Security	1y ago Aug 29th, 2025	Spam Content analysis Sender analysis
Spam: Campaign with excessive space/char obfuscation and free file hosted link	Sublime Security	9mo ago Jan 12th, 2026	Spam Free file host Content analysis Sender analysis
Spam: Commonly observed formatting of unauthorized free giveaways	Sublime Security	9mo ago Jan 14th, 2026	Spam Impersonation: Brand Social engineering Content analysis HTML analysis Sender analysis URL analysis
Spam: Default Microsoft Exchange Online sender domain (onmicrosoft.com)	Sublime Security	2mo ago Aug 3rd, 2026	Callback Phishing Credential Phishing Spam Free email provider Impersonation: Brand Social engineering Content analysis Sender analysis
Spam: Fake dating profile notification	Sublime Security	7mo ago Mar 20th, 2026	Spam Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis URL analysis
Spam: Fake photo share	Sublime Security	17d ago Oct 8th, 2026	Spam Evasion Social engineering Content analysis Sender analysis URL analysis Whois
Spam: Firebase password reset from suspicious sender	Sublime Security	10mo ago Dec 2nd, 2025	Credential Phishing Spam Evasion Social engineering Header analysis Sender analysis URL analysis
Spam/fraud: Predatory journal/research paper request	Sublime Security	11mo ago Nov 3rd, 2025	BEC/Fraud Spam Social engineering Impersonation: Brand Lookalike domain Evasion Natural Language Understanding Content analysis Sender analysis URL analysis Whois
Spam: Ghostwriting services scam with manipulative language	Sublime Security	1mo ago Sep 23rd, 2026	Spam Social engineering Content analysis Sender analysis
Spamhaus: Mail transiting a DROP listed network	Sublime Security	2d ago Oct 23rd, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Spamhaus: Mail transiting an ASN-DROP listed network	Sublime Security	2d ago Oct 23rd, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Spam: Item giveaway spam template	Sublime Security	1mo ago Sep 23rd, 2026	Spam Image as content Content analysis HTML analysis Sender analysis Exif analysis
Spam: Large financial amount mention from newly registered sender domain	Sublime Security	3d ago Oct 22nd, 2026	BEC/Fraud Spam Social engineering Content analysis Sender analysis Whois
Spam: Link to blob.core.windows.net from new domain (<30d)	Sublime Security	1y ago Jul 16th, 2025	Spam Free subdomain host Header analysis URL analysis Sender analysis
Spam: Mastercard promotional content with image-based body	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Spam Image as content Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis
Spam: New job cold outreach from unsolicited sender	Sublime Security	1y ago Sep 29th, 2025	Spam Content analysis Natural Language Understanding Sender analysis URL analysis
Spam: New link domain (<=10d) and emojis	Sublime Security	1y ago Jul 16th, 2025	Spam Free email provider Content analysis Sender analysis URL analysis Whois
Spam: Sendersrv.com with financial communications and unsubscribe language	Sublime Security	8mo ago Feb 24th, 2026	Spam Evasion Social engineering Header analysis Content analysis Natural Language Understanding Sender analysis
Spam: Sexually explicit content with emoji in subject from freemail provider	Sublime Security	7mo ago Mar 10th, 2026	Spam Free email provider Social engineering Content analysis Header analysis Natural Language Understanding Sender analysis
Spam: Sexually explicit Google Drive share	Sublime Security	1y ago Aug 5th, 2025	Spam Social engineering Free email provider Content analysis Sender analysis
Spam: Sexually explicit Google group invitation	Sublime Security	11mo ago Nov 12th, 2025	Spam Free email provider Social engineering Content analysis Sender analysis
Spam: Sexually explicit Looker Studio report	Sublime Security	1y ago Oct 2nd, 2025	Spam Social engineering Free email provider Content analysis Sender analysis
Spam: Single recipient duplicated in cc	Sublime Security	4mo ago Jun 5th, 2026	Spam Impersonation: Brand Social engineering Header analysis Content analysis URL analysis Sender analysis
Spam: Unsolicited malformed PDF	Sublime Security	1y ago Jul 16th, 2025	Spam Evasion Free email provider PDF Content analysis File analysis Sender analysis
Spam: Unsolicited WordPress account creation or password reset request	Sublime Security	11mo ago Nov 24th, 2025	Spam Social engineering Header analysis Sender analysis URL analysis
Spam: URL shortener with short body content and emojis	Sublime Security	9mo ago Jan 12th, 2026	Spam Free email provider Content analysis Sender analysis URL analysis
Spam: Website errors solicitation	Sublime Security	3mo ago Jul 27th, 2026	Spam Content analysis Sender analysis Natural Language Understanding
Spoofable internal domain with suspicious signals	Sublime Security	1y ago Jul 23rd, 2025	Credential Phishing Free file host Free subdomain host Social engineering Spoofing Content analysis Header analysis Natural Language Understanding Sender analysis
Spoofing: Hidden Outlook headers in self-addressed forwards	Sublime Security	19d ago Oct 6th, 2026	BEC/Fraud Credential Phishing Spoofing Evasion Impersonation: Employee Social engineering Header analysis HTML analysis XML analysis Sender analysis Natural Language Understanding
Subject and sender display name contains matching long alphanumeric string	Sublime Security	9mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Evasion Social engineering Content analysis Header analysis Sender analysis
Suspected cross-site scripting (XSS) found in subject	Sublime Security	27d ago Sep 28th, 2026	Credential Phishing Evasion Scripting Content analysis Sender analysis
Suspected lookalike domain with suspicious language	Sublime Security	9mo ago Jan 12th, 2026	BEC/Fraud Evasion Lookalike domain Social engineering Content analysis Natural Language Understanding Sender analysis Whois
Suspected WordPress abuse with cross-site scripting (XSS) indicators	Sublime Security	1y ago Aug 5th, 2025	Malware/Ransomware Credential Phishing Scripting Impersonation: Brand Social engineering Content analysis Sender analysis
Suspicious attachment with unscannable Cloudflare link	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Evasion PDF Social engineering Impersonation: Employee Impersonation: VIP File analysis URL analysis Sender analysis Content analysis Header analysis Natural Language Understanding
Suspicious display name: Gmail sender with engaging language	Sublime Security	7mo ago Mar 6th, 2026	BEC/Fraud Credential Phishing Social engineering Sender analysis
Suspicious DocuSign share from new domain	Sublime Security	1y ago Aug 5th, 2025	BEC/Fraud Credential Phishing Evasion Free file host Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis
Suspicious invoice reference with missing or image-only attachments	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering Content analysis Computer Vision File analysis Natural Language Understanding Sender analysis
Suspicious Links to Cloudflare R2 and Edge Services	Sublime Security	1mo ago Sep 23rd, 2026	BEC/Fraud Callback Phishing Credential Phishing Extortion Malware/Ransomware Spam Free file host Header analysis Sender analysis URL analysis

786 Rules

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