Mac Help

[ecchi]

I'm looking for a site like Trend's Home Visit that runs on Macs, for my sister. (A sort of one off online free scan for viruses, trojans, malware etc.) She recently visited a site and got a warning from her browser that it contained malware. I've told her that since she closed down the window on the warning rather than enter the site she will have avoided the malware, and anyway it is 99.9% probable that it was a Windows virus and not Mac compatible. But she is paranoid and won't use her computer for filling in forms, shopping, etc. So I need a Mac compatible virus scan site to send her to that will put her mind at rest.