In this recipe, we will learn how to attack FTP to find a valid login. We will make use of the list generated in the preceding information-gathering recipe.
For this recipe, we will make use of a tool named Hydra. It is a parallelized login cracker that supports numerous attack protocols. There are many tools available in Kali Linux for cracking passwords; however, Hydra is very handy. Now that we have Hydra and the username list, let's begin the attack.
username, ensure that terminal points to the path where the username file is. We will run the following command in the terminal:
hydra -e nsr -L username <IP address> ftp
The output will ...