Yahoo IM hackers/trojan

So how many of you have Yahoo IM and have been getting messages from people trying to get you to take some IQ test? Before it was random contacts but seems a friend of mine got infected. I changed her name for privacy sake but, be careful about this. I copied the log because what the 'hacked' account says is the same each and every time, the responses are scripted. Ohh and I removed the http from the link so nobody accidently clicks the link that has the trojan in it

2284: heyy
Katscan: Morning
Katscan: How are you?
2284: i just took an IQ quiz here.. pretty cool
Katscan: huh?
2284: got a 113 lol... I thought I was smarter than that
Katscan: Who are you? (If you post this question the immediate response is below and it never changes)
2284: you dont even know me anymore? wow..
Katscan: Ohh you got hacked
2284: im not hacked!
Katscan: Then who is this?
Katscan: Where did we meet?
2284: you should see if you can do better than me... //iqtestingwso2.com/?invitecode=2z18tkd7c1 if u can ill give you twenty dollars lol
2284: try beating me... I bet you cant haha
2284: take it now while I take a shower lol
2284: ill be back in a few after im all fresh
2284: BRB, let me know your score when im back!