I don't know anything about hack-checking; I don't have an AR, and I'm not sure what you mean by "trash bytes." That's a pretty popular redistributable on Smogon, I think--have you tried hack-checking someone else's? Regardless, I got that from Atraes (I can say with near certainty that he wouldn't have hacked it; he's a good guy), who probably got it from someone else, etc.
Let me know what you find out--I don't want a hacked pokemon in my PC box any more than you do.