Sure hope you have not cashed that check yet. Chances are very good that it will be charged back to your account by your bank as for sure it will be a phony.
Be careful of these and as duffymoon2 said, " If it sounds too good to be true, it is. If I had all the money from phony lotteries that I have won that are waiting to be delivered to me if I only gave them my bank account number for a fund transfer, I could probably bail out Obama. Well ..........probably not.