RDPBlocker is a tool to prevent brute force password cracking against RDP(Remote Desktop Protocol) services.

Since the RDP service is designed and maintained by Microsoft and is rarely used by other operating systems, this tool is designed specifically for Windows and does not support other operating systems.

The advantage of this tool is that it is simple to use, small in size and easy to install.

Windows 10 x64 or Windows Server 2016 x64 or higher version. The code should also support Windows 7 or higher version, but it has not been tested.

Only the X64 version is provided by default, if you need the X86 version, you need to compile it yourself.

This tool provides an installation wizard packaged by Inno Setup, which users can use directly to install. The program will be installed by default in the C:\Program Files\RDPBlocker

C:\Program Files\RDPBlocker\RDPBlocker.exe will be registered as a system service, and as a system service it will start automatically at system startup.

Note: Registration service function provided by nssm project.

C:\Program Files\RDPBlocker\config.ini is the configuration file. The configuration file can be changed according to the user's needs. Example :

[Block]
; Blocking Threshold
; IP addresses will be blocked when an incorrect account or password is entered within a specified period of time greater than a threshold value.
threshold = 3
; Blocking time in the seconds
time = 300

If users need, they can also download the zip package to configure and install it by themselves.

You can also try to compile this project yourself if you need to.

Visual Studio 2019 (MSVC 14.2)

Boost Library https://www.boost.org

spdlog https://github.com/gabime/spdlog

If you use the project files provided in this project, you need to set the environment variables before compiling.

$(BOOST_INCLUDE)
$(SPDLOG_INCLUDE)
$(BOOST_LIB)
$(SPDLOG_LIB)

If you need to compile and install the wizard, you will also need Inno setup Compilers.