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| from here and here (image source) |
If you want to know of a good product to prevent this from happening, I suggest a vacuum cleaner rather than antivirus. Antivirus cleaning has more to do with disinfection, and unless you believe in the concept of "clean dirt", no kind of disinfection is going to help here.
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| from here and here (image source) |
Just as there is no security by obscurity, so too is there no real security by impurity. I could wear gloves, or push the buttons with a stick if it came down to it. Also, I could probably just pick the lock too.
That being said, someone definitely knows how to put the ick, in Kwikset.