Remote Desktop Protocol (RDP) allows a user to connect to another computer ,with Windows operating systems, over a network connection. The RDP port (3389) is open on your Windows virtual machine and allows all incoming traffic from the Internet. In order to keep security best practices, you should restrict access to be only from allowed IP addresses.
Recommended Mitigation
Configure networking rule to allow incoming RDP traffic from allowed IP addresses only.
Network misconfigurations
