Just better SSH Bruteforcing.
The parameters:
threads - number of threads, each thread will be scanning and bruting.
target_port - target port for ssh.
proxy_list - you can use proxies for the SSH bruteforcing.
max_cons - maximum number of concurrent ssh brutes (for slow servers).
combo_list - logins and passwords
universal_timeout - timeout between connections.
res_file - file to store brutes in.
Install Java Commands:
ubuntu: apt-get install default-jre
centos: yum install java
Or on Windows browse for the installer.