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
Link: Unsolicited email contains link to page containing Tycoon URI structure	Sublime Security	7mo ago Mar 10th, 2026	Credential Phishing Evasion Social engineering Sender analysis URL analysis URL screenshot
Link: URL redirecting to blob URL	Sublime Security	8mo ago Feb 24th, 2026	Credential Phishing Malware/Ransomware Evasion Free file host Open redirect Sender analysis URL analysis Threat intelligence
Link: Webflow link from unsolicited sender	Sublime Security	1mo ago Sep 23rd, 2026	Callback Phishing Free file host Free subdomain host Content analysis URL analysis Sender analysis
Link: Zoho form link from unsolicited sender	Sublime Security	2d ago Oct 23rd, 2026	Callback Phishing Free file host Content analysis URL analysis Sender analysis
Lookalike sender domain (untrusted sender)	Sublime Security	1mo ago Sep 23rd, 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	2mo ago Jul 29th, 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
MalwareBazaar: Malicious attachment hash in archive (trusted reporters)	Sublime Security	5mo ago Apr 29th, 2026	Malware/Ransomware Evasion Archive analysis File analysis Sender analysis Threat intelligence
MalwareBazaar: Malicious attachment hash (trusted reporters)	Sublime Security	7mo ago Mar 26th, 2026	Malware/Ransomware File analysis Sender analysis Threat intelligence
Mass campaign: Cross Site Scripting (XSS) attempt	Sublime Security	27d ago Sep 28th, 2026	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	1mo ago Sep 23rd, 2026	Credential Phishing Social engineering Header analysis Natural Language Understanding Sender analysis
Message traversed multiple onmicrosoft.com tenants	Sublime Security	9mo ago Jan 12th, 2026	Callback Phishing Evasion Free email provider Free subdomain host Sender analysis Header analysis
Microsoft device code phishing	@ajpc500	9mo ago Jan 12th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Sender analysis URL analysis
Microsoft infrastructure abuse with suspicious patterns	Sublime Security	9mo 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	1y 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
New link domain (<=10d) from untrusted sender	Sublime Security	2mo ago Aug 10th, 2026	Credential Phishing Malware/Ransomware Sender analysis URL analysis Whois
New sender domain (<=10d) from untrusted sender	Sublime Security	2y ago Nov 20th, 2024	Sender analysis Whois
Non-RFC compliant calendar files from unsolicited sender	Sublime Security	5mo ago Apr 28th, 2026	Evasion ICS Phishing Social engineering Archive analysis Content analysis File analysis Sender analysis
Notion suspicious file share	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Malware/Ransomware Evasion Free file host Content analysis Sender analysis URL analysis
Observed IOC: Mail transiting bulletproof host - SmartApe	Sublime Security	17d ago Oct 8th, 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	3d ago Oct 22nd, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Observed IOC: Mail transiting OFAC-sanctioned bulletproof host Media Land / ML Cloud	Sublime Security	17d ago Oct 8th, 2026	Malware/Ransomware Credential Phishing BEC/Fraud Evasion Social engineering Header analysis Sender analysis
Observed IOC: Malicious reply-to domains	Sublime Security	6mo ago Apr 27th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Header analysis Sender analysis
Observed IOC: Malicious reply-to email addresses	Sublime Security	6mo ago Apr 27th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Email address Social engineering Header analysis Sender analysis
Observed IOC: Malicious reply-to root domains	Sublime Security	6mo ago Apr 27th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Header analysis Sender analysis
Observed IOC: Malicious sender domains	Sublime Security	27d ago Sep 28th, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Sender analysis Header analysis
Observed IOC: Malicious sender email addresses	Sublime Security	2d ago Oct 23rd, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Email address Social engineering Sender analysis Header analysis
Observed IOC: Malicious sender root domains	Sublime Security	2d ago Oct 23rd, 2026	BEC/Fraud Credential Phishing Malware/Ransomware Impersonation: Domain Social engineering Sender analysis Header analysis
Open redirect: adnxs.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: agena-smile.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: amaterasu-for-website-5.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: api.spently.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: Artisteer	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Open redirect Sender analysis URL analysis
Open redirect: artkaderne	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open Redirect: asemailmgmteu.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: astroarts.co.jp	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: Avast	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: bananaguide.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: bangkoksync.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: bestdeals.today	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: Bitrix24 URL Path	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Open redirect Sender analysis URL analysis
Open redirect: BMW USA	Sublime Security	9mo ago Jan 12th, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: bubblelife.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: buildingengines.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: business.google.com website_shared URL Param	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: chkc.com.hk	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: City of Calgary	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Exploit Open redirect Social engineering Sender analysis URL analysis
Open redirect: Club-OS	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: convertcart.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: Dell	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis
Open redirect: designsori.com	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Open redirect Sender analysis URL analysis

786 Rules

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