Anti DDoS Guardian!

RdpGuard allows you to protect your Remote Desktop (RDP) from brute-force attacks by blocking attacker's IP address. Fail2Ban for Windows.

Protected against RDP-Brute forcers. It installs a service which scans the event log for anomalies every 30 seconds (by default).When the service finds out that someone is taunting your server with RDP-login attempts, it adds the remote IP to a generic rule in the windows firewall which locks out the attacker. After 2 hours (default), the ban will be lifted, i.e. the IP will be removed from the rule.

e.guardo protects your RDP, MSSQL, FTP, SMTP, EXCHANGE, OWA, LYNC, MICROSOFT DYNAMICS CRM, SHAREPOINT and many more services from Brute Force and Dictionary Attacks

Lit Fuse Intrusion Detection (LID) protects your Windows system from brute force attacks and other intrusion attempts by placing a brick wall between your server and would-be hackers. Lightweight and lightning-fast, our software keeps an eye on your network traffic 24/7, watching for suspicious activity.

lua-spylog - Execute actions based on log records

An autoblocker for brute force attacks primarily for Windows Servers with good information in the admin mils telling you DNS names, country of origin and username used for the attack.