I am fairly new to the Mac OS-X platform. I recently converted from windows and I am used to having to have software such as Ad-Aware on my windows machine. I do have Yasu on my Mac, but is there any other software that I should use to remove this type of threat? I am not running any antivirus on my Mac. I went to some sites i shouldn't have and just curious if I should format my hard drive and re-install OS-X? Didn't want to worry visiting my bank online.