Montando comando Hydra - POST FORM:

# hydra <IP/Host> -l <login> -P <wordlist> http-post-form "<url>:<campo_usuario>=^USER^&<campo_senha>=^PASS^:<Diferença>" -V
 

Hydra HTTP GET:

# hydra <IP/Host> -l <login> -P <wordlist> http-get -V