I let my brother use my mac and he went on my Mac and downloaded an app called "utorrent". I uninstalled it. My Mac was acting slow. I used Adwaremedic and it detected something called "migos" or something. Supposedly it got rid of it. I used Bitdefender and it detected the same thing. I just used ClamXAV and it detected nothing. I'm super paranoid. What do I do? I wanna be 100% sure I have nothing now. If not I'll return the Mac while I still have the 1 year warranty.