To my knowledge, Ganzo has not made a counterfeit of any knife-and they make a pretty good knife for the money. I have one sitting on my desk.
I'll go one further and say it's an exceptional knife for the money. A while back I was browsing the web looking for a knife with an Axis-style lock. Up popped a picture of what looked like a pretty good knife. It was under twenty bucks! My curiosity got the best of me, and I ordered up a couple of these "Ganzo" knives. When they arrived, I took one apart, checked it out, and whipped a pretty nice edge onto the 440C. I carried and used the knife for a couple days, and it was just fine. I did't like it as much as my nicer knives, so the Ganzos just live in a drawer. They're not as good as a top shelf knife, but for someone on a budget, I think they're fine.