it could be corrupted or attacked by a virus
Probably not the latter one..
I have read several posts, can recover wallet
./wallet-recover corruptedWallet.dat recoveredWallet.dat
help me
What tool are you talking about? Did you download the tool and are you running it correctly?
Or did you just copy/paste a random command you found somewhere?
Which thread? You need to give us more information..
Also, did you create a backup (or better: several backups) before trying to recover your wallet file?
And the most important question: Did you buy that wallet file? If you indeed did, you got scammed.