Any and all stories you may have heard about Bob! being a virus are pure coincidence. So is the title. No, Mr. Whitney's virus software was just doing a routine checkup. It found something that it could download to help protect against a virus that he would have known if he had. It brought up a little window:
You are not protected
against a rapidly spreading
This is having nothing to do with DarkNet's software.
We assure that all our software is virus free, but we cannot protect against viruses on your home computers that may corrupt our files.