Ncrack can be configured to use a list of passwords to search for in a text file, which allows for much more efficient cracking. The passwords can also be passed through a filter, which allows you to specify how many attempts each password should make before being given up. A good example of this is the following:
On Unix, you'll need to use the binary version of Ncrack. Download it, then unzip it somewhere and run the ncrack script. You'll be presented with a prompt, again. From that prompt, follow the prompts to start the cracking process. Be sure to note what version of Ncrack you are using and how many systems it has cracked.
There are now also a number of remote desktop cracking tools available for free. One of the most popular is THC-Hydra. THC-Hydra provides a graphical user interface for editing Ncrack scripts. You can also use it to remotely brute-force passwords to find any enabled administrator accounts (In addition, the THC-Hydra website provides a great resource for learning Ncrack and credentials-guessing.
Now for the final step, connect to the listener on port 5901. I will be using a tool called Cupid. You can download it from cupp.sh . You will be prompted to login using the Linux Mint username and password. Once you login the first time, click on the Service 827ec27edc