The service shown in the log doesn't correspond to anything. The actual log entry only has the port number. SmartConsole then takes that port number and tries to resolve it to an object name to be helpful. You can totally ignore the object name shown there.
In your original post, you mention the port at issue is 15600. The service in the rule you have shared is named 15672, implying it matches that port rather than 15600. Which port are you actually trying to match? Are you sure the service object in the rule matches that port? Ignore the name of the service object and only look at the contents.