Stop RDP Brute-Force Attacks
Protect Remote Desktop and other Windows Server services from brute-force attacks. RdpGuard automatically blocks IP addresses after repeated failed logins and runs as a Windows service, keeping your server protected even when you are logged off.
IP Cloud uses attack reports from other participating RdpGuard servers, so yours can block known attacking IP addresses before their first login attempt.
Use Geo-IP to block connections from selected countries or allow access only from countries you choose. Country IP ranges are updated automatically.
For 64-bit Windows and Windows Server. Supported Windows versions.
Protect RDP, FTP, IMAP, POP3, SMTP, MySQL, Microsoft SQL Server, IIS web logins, ASP.NET Web Forms, Microsoft Exchange, RD Web Access, VoIP/SIP and OpenSSH from one dashboard.
Password attacks do not take a break
Automated bots keep trying common usernames and passwords against internet-facing services. The attempts fill your security logs, consume server resources and leave you chasing a changing list of IP addresses. One weak or reused password can turn a stream of failed logins into a compromised account.
Open your Windows Security log. Repeated Event ID 4625 entries can reveal failed logon attempts like these:
Date and time Event ID Task Category Keywords
2018-08-14 03:01:02 4625 Logon Audit Failure
2018-08-14 02:57:34 4625 Logon Audit Failure
2018-08-14 02:57:31 4625 Logon Audit Failure
2018-08-14 02:57:28 4625 Logon Audit Failure
2018-08-14 02:28:58 4625 Logon Audit Failure
2018-08-14 02:20:47 4625 Logon Audit FailureRdpGuard turns repeated failed logins into automatic IP blocks. Choose your blocking threshold and duration, and let it handle repeat offenders while you focus on running your server.
RdpGuard is a Fail2Ban alternative for Windows, with automatic IP blocking and a graphical dashboard.
Download RdpGuard and start your free trial today. Try all features on your own server for 30 days and see automatic IP blocking in action.
For 64-bit Windows and Windows Server. Supported Windows versions.
03 Oct, 2026 - RdpGuard Version 10.3.7 Released
- New user interface with improved high-DPI and dark theme support
- Significantly reduced CPU and memory usage, improved log monitoring reliability
- Added support for Apache HTTP Server and nginx in HTTP protection
- Added UTC date variables and program execution timeouts for Custom Actions
- Expanded CLI commands for rules, exclusions, event logs, and UI settings
- Improved SIP detection and fixed false-positive IP blocking
- Improved IP Cloud reliability and Geo-IP database accuracy
- Security improvements for stored credentials and Custom Actions
- Added DNS/DDNS hostname support to the Whitelist
- New exclusion rules for MS VPN (RRAS)
- Added French, German, Spanish, and Russian interface translations
- Other improvements and bug-fixes
11 May, 2026 - RdpGuard Version 10.2.1 Released
- New Geo-IP port scope settings: block or allow traffic only on selected ports
- Improved HTTP and RD Web detection with better handling of X-Forwarded-For
- Added Client IP fallback for HTTP and RD Web engines
- Faster log-based detection engines, especially HTTP protection
- Improved MailEnable, OpenSSH, and Microsoft Exchange detection engines
- User interface improvements and bug-fixes
- Various internal improvements and bug-fixes
09 Jun, 2025 - RdpGuard Version 10.0.5 Released
- Security Fix: Custom actions now require administrator privileges
- Exclusion rules now support Protocol, TargetUserName, and IPAddress
- Restored successful login reporting for OpenSSH
- Various internal and UI improvements and bug fixes
RdpGuard protects:
- Remote Desktop
- MS-SQL Server
- FTP Protocol
- HTTP Protocol
- IMAP Protocol
- POP3 Protocol
- SMTP Protocol
- IIS Web Login
- MySQL Server
- ASP.NET Forms
- RD Web Access
- VoIP (SIP Protocol)
- SSH Protocol
- MS VPN (RRAS)
"This sotware is really great. It's a relief. Because my server is constantly under attack. Thanks RdpGuard" - Joaquim De Sousa Marques
"Nice product. I used to implement something similiar in a low-tech and cumbersome manner via a script called TSBlock (not mine). This makes it much easier and is well worth the pricetag for SMB's." - J. Johnson
"Absolutely amazed at your product. We are a church in the North Dallas area, and I discovered this morning multiple failed logon attempts via our Remote Access Server. A friend suggested your product, so I immediately downloaded the trial. It had a list of about five blocked IP addresses in minutes, and that was enough to lead me to push the BUY button. Over the past 10-15 minutes the list is now about thirty with at least a third being international attempts to break into our system. Thanks for a great product. You may have just saved us much grief." - John Hallford
"Love the software. RDP on our Windows servers is just ridiculous. We would block it in the router but we have lots of old-time customers that would have issues." - Scott Hirsch
"Love the software! Makes it easier than tailoring VB Scripts!!" - Nick Brennan
"It's a great product - really stopping those RDP attackers :-)" - Dave, UK
"First of all: Your application is very (!!!) useful and I like it very much securing my 2012 R2 server. RdpGuard is the best solution, I found on the market and after 10 minutes of testing it I ordered the fully-featured version. :-)" - Carsten Baltes