kerbrute
Source
Enumerate valid domain usernames via Kerberos
./kerbrute userenum --help
./kerbrute userenum --dc controller.local -d controller.local user.txt
Bruteforce a single user's password from a wordlist
./kerbrute bruteuser --help
./kerbrute bruteuser -v --dc controller.local -d controller.local /usr/share/wordlists/rockyou.txt admin1
sudo git clone https://github.com/ropnop/kerbrute.git
sudo make all
ls dist/