I’ll just start this post with stating that I’m not doing this with malicious intents, nor am I going to use this for other purposes than learning, or advise using this on servers others than your own. That being said, let’s get down to business.
Why an SSH brute-forcer?
Because too many people are still using password authentication with weak passwords. There are still many servers with sshd open with the default port exposed to internet, using accounts with weak passwords. Have a RaspberryPi? Put it on the Internet! Just take a look over Shodan’s raspbian with port 22 query. It’s crazy. We’re kinda fighting fire with fire.