Changing the RDP listening port to a non-standard port, like 4992, can help decrease the exposure to automated attacks targeting the default port 3389. Using a non-standard port is part of a security strategy known as security through obscurity, which can add an extra layer of security by reducing visibility to automated attacks. It is essential to update firewall rules to allow traffic through the new port. The other ports listed are commonly used for other specific protocols and changing RDP to these ports could lead to conflicts or security risks.