So about 20, I was changing my twitter background. While downloading the image from profilerehab.com & saving the changes onto twitter.. My mbp completly went bizzare, it went completly slow & buggy for about a minute. Then my mbp told me twitter was not responding, then it gave me the option to wait for it to respond or quit. I waited for it to respond & wouldnt, so I just exited it out. After that, I reentered twitter. And my mbp has been fine ever since, the reason I ask if it now has malware now is because its never done that before..