Hi,
By default WSA does not aware of port 4244 since its only listen to port use by HTTP/HTTPS and FTP.
However in access policy under "Protocol and User Agent" of the policy, there is section called HTTP CONNECT Ports, this is for other ports that WSA can establish HTTP CONNECT to those ports.
As long as port 4244 is not listed there or in that section there is no entry allowing all the ports such as 1-65535, then port 4244 should not be allowed.
Regards
Handy Putra