RDP

RDP normally runs on TCP port 3389.

Enumeration

auxiliary/scanner/rdp/rdp_scanner

use auxiliary/scanner/rdp/rdp_scanner
set RHOSTS TARGET_IP
set RPORT TARGET_PORT
run

Brute-force with Hydra

hydra -L USERS_LIST -P PASS_LIST rdp://TARGET_IP -s TARGET_PORT

Connect using xfreerdp

xfreerdp /u:USER /p:PASSWORD /v:TARGET_IP:TARGET_PORT