Here's what I can tell you, ALL cracked bots come with Trojans that's a fact. I've checked tons of cracked downloads of various bots with different virus detectors and trojans were found 100% of the time. The only way I would trust a crack is if a close friend cracked it himself or got it from someone trustworthy. I mean think about it, who's gonna buy a bot, then spend time on cracking it just to give it out for free? No one. So if you download one of those cracked bots out there don't be surprised if all of the sudden you get hacked, just saying.
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Also, I seriously would recommend just purchasing the bot, I mean it's $10. If what you need is a credit card just borrow from a friend or your parents.