When I copy and paste my wallet address from Kraken, the pasted address is not the same. Is this normal or a virus?

I think this might be a virus, I don't think I've downloaded anything suspicious but maybe I did.

I copy and pasted and address from Kraken into the Monero GUI wallet. The addresses do not match.I copied it again and posted it in a word document, it's the same address from before, but does not match the wallet address on Kraken.

I just tried the same thing again on a different computer and now the addresses match. I'm thinking I have a virus for sure now but I have no idea where it came from our how to find it.

Edit: Ok there were a few viruses, I'm not sure which one was which or where it came from. This is what malwarebyte shows me

Hijack.ShellA.Gen

Trojan.Crypt.MSIL.Generic

Malware.AI.4251292410

Edit 2: I will never use this PC for crypto related stuff in the future.