Hydra is a parallized login cracker which supports numerous protocols to attack. Hydra was tested to compile on Linux, Windows/Cygwin, Solaris 11, FreeBSD 8.1 and OSX. Hydra is best for Samba, FTP, POP3, IMAP, Telnet, HTTP Auth, LDAP, NNTP, MySQL, VNC, ICQ, Socks5, PCNFS, Cisco and more. Includes SSL support and is part of Nessus.
Source: https://thehackernews.com/2012/02/thc-hydra-72-fast-and-flexible-network.html