I have tried cracking the most popular bot (A.I. player) for Hearthstone called Hearthranger. It seems nearly impossible to me. The bot works like that:
1) You register on their forums
2) You download the bot
3) You enter username and password of your accont on their forums
4) The app pings back your details and comes back with confirmation that you are a user along with your membership (Free/Paid)
5)The program unlocks and starts botting.
Now, I have tried setting it back in time to give me more time because it currently gives you 60mins per 16 hours, the program I used is called RunAsDate and I didn't get access as the program pings the server every now and then to refresh its data. I found some other AuthBypass online but it doesn't seem to work. My guess is that you need to trick the program somehow that you are a paid user. I have no idea on how to do it and that's why I cameby this forum. Thanks for any help or tips provided!