Ncrack - High-speed network authentication cracker
Ncrack is a high-speed network authentication cracking tool designed for easy extension and large-scale scanning. It is free and open source and runs on Linux, *BSD, Windows and macOS.
nmap.org
Works the same way has Hydra (and xHydra), it's a tool used for cracking in many protocols (such as RDP, SSH, FTP, ...), here is an example of a command line structure to bruteforce on port 3389 (default RDP port, but the port used can be different, especially in case of port forwarding), the username (most of the time default usernames are used, such as "admin", "administrator", ...), a password list (see wordlists above) and the target (single, or multiple) :
Code
ncrack -p 3389 -u <username> -P <password_list> <target_ip>
Ncrack supports less protocols for cracking, however it seems to be more efficient (parallelism, speed, ...)
