Here is a good little thread on WMI and DCOM ports for those wanting some more details. The keys are:

 

• 'Remote Procedure Call (RPC)' Windows service running
• WMI port 135
• Any dynamic ports ranging from 1024-65535 (TCP) for Windows 2003 and older, and 49152 - 65535 (TCP) for Windows 2008

 

https://social.technet.microsoft.com/Forums/ie/en-US/52ae9199-2ea4-4158-b007-8dc87cdcf75e/wmi-dynamic-ports-when-are-they-used-?forum=winserverManagement