Haven't heard of such a coin and Yobit seems to have a bad reputation over here so asking Bitcointalk members for information regarding anything on Yobit could be a waste of time, but one question that can help our clarity is that, don't you have a withdrawal option for the coin and how do you know the value of the coin, check on exchange to know if the coin is listed and what the actual value could be, having such information will help you a lot in knowing whether or not the coin in your account is not just a spam coin.