Alter Mifare Desfire Balance

I have a Mifare Desfire card where the balance is stored on the card itself. Is there any way to use a proxmark3 to brute-force the auth code to change the data and thus change the balance of the card?

Yeah nah,
Nobody here is going to help you do that.

(Of course, am I assuming you are not trying to REDUCE the balance?)

everybody loves a trier

Sorry buddy.