Application blocking using Finger print

Hi,

We tried blocking some applications through the application and device control policy in SEPM(12.1).For some porducts when we rename app file, symantec is not able to block that particular application.To block that app we need to get the file finger print of that app.When the app version changes the file finger print value also changes.

Every time do we need to check for the file finger print when the app version changes???? or is there any way to block without checking the file finger print when the version changes?

Or symantec can provide some in built signatures through updates to block those apps.

Please advise