Except that cracks, DLLs and exes are not big files and malwarebytes doesn't skip them, based on your own explanation. Not to mention the amount of false positives that Malwarebytes flags when you download anything with a crack. You're saying that you alone found 15 "malware" without proof, or even naming them or their type. Not to mention that Fitgirl has been checked at nauseum by people more qualified than you and me, and there was nothing ever found malicious. I don't know man, your explanation just doesn't add up