How to create mask rules for something like this XXXX-XXXX-XXXX-XXXX-XXXX
Which only contain Letter UP and number
-1 ?d?u ?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1
You may also need hyphens but yeah, TheBogeyman's mask is correct. Hashcat is unlikely to actually accept it though and may throw an integer overflow error. That mask contains 13 nonillion candidates, which would take trillions of years to complete, even on a very powerful machine.
Alright thank you. Eventhough it looks impossible. I am just curious about the mask rules.