Hello! I have Malwarebytes Anti-Malware already installed, but heard about this: https://itunes.apple.com/us/app/bitdefender-virus-scanner/id500154009?mt=12 I only want scanner to sometimes use - not real time. Scanner that would allow me to scan specific files - like files from external hard drive I want to put to my Mac's hard drive. 1) Can BitDefender scan single image, video and other files? 2) Is BitDefender legitimate respected software or could it mess up my system in any way?