So I got hacked...

I got a little curious as to what those gold sellers were actually advertising and went to their website to poke around. Of course I didn't buy anything, but looking was all it apparently took. I woke up to find that not only had they stripped every character I had to the bone, those buttholes also renamed three of my best characters and changed their factions and server.

Anyway, I had a few questions maybe a few other people could answer.

1) Any good tools for finding the keylogger? My Microsoft Security Essentials found nothing.

2) How likely is it I'll be hacked again if I've removed the virus successfully?

3) How do I disable my credit card from being saved? I didn't even know hackers could use my payment information to buy things. Or was it even my credit card? I haven't investigated thoroughly but on second thought I don't recognize the number from the purchase.

Also feel free to shame and mock me. I have posted at least a dozen times in this forum in the last four years calling people dummies for getting hacked and I figured it would never happen to me. I got cocky. And now I'm eating crow. Gah.

EDIT: And what kind of name is Sadasad?? They couldn't be more creative? Maybe something Chinese?