For Microsoft Windows & Microsoft Windows ServerStop brute-force attacks on Microsoft Windows.
AntiBrute monitors RDP, MSSQL, SSH, FTP and SMB — and blocks attackers automatically. Built for IT admins and technically-minded users running Microsoft Windows or Microsoft Windows Server. Perfect for Windows cloud servers.
7-day free trial included. No credit card required to try.
Automatic firewall blocks
Failed logins trigger Windows Firewall rules instantly. No manual cleanup.
Country & active-hours rules
Restrict access by country or to working hours only. Reduce exposure outside business needs.
Alerts and dashboard
Email alerts on threshold events. A clean local dashboard for logs and live status.
Supported services
Protect the protocols attackers target most.
Ready to harden your servers?
Install in minutes. Activate with a license key. Done.
Why AntiBrute?
A second line of defense for exposed services—designed for the new reality of AI enhanced exploitation techniques.
Built for the ransomware problem
Brute-force attacks are the front door to ransomware. AntiBrute was designed around the reality that servers get hacked and locked, and that exposed services like RDP and FTP are constantly probed—even patched systems need a second line of defense.
Shrink your attack surface
Block Hours and Country limits let you reduce exposure without changing your infrastructure. If your team is in one country, there is no reason the rest of the world should see your server right? If remote access is not needed overnight, close it.
Security is temporary—plan for it
AI Enhanced Vulnerability Scanning shows that a secure configuration today is not guaranteed tomorrow. AntiBrute acts as a failsafe: an almost zero-trust layer for internet-facing services. The idea was born in 2017 as CloudSiren, and is now refined into AntiBrute.