We need an anti-virus virus.

In case you don't know, I am referring to computer viruses.

The easiest way to eliminate the threat of mydoom, sobig, and all the other viruses should be rather simple. Once those epidemic-type viruses are discovered, anti-virus companies like Symantec or McAffee should write a new virus which spreads in the same or better way than the epidemic viruses. Then, when the Symantec-made virus infects a computer that is also infected with mydoom, sobig, ect, the Symantec-virus removes mydoom/sobig/whatever.
Many of the problems caused by these viruses could have been avoided if computers were kept up-to-date and had anti-virus programs installed; such not only would have protected the computer, but also would have prevented the computer from spreading the virus to others. An anti-virus virus would use the same methods as harmful viruses to protect computers, without requiring the user to do anything.

I have found that people will rarely change their habits, even if it means protecting their computer and all of their software. Some companies do not realize this, and make products that require customers to change in order to make those products more effective (like sunscreen, which you are supposed to apply 30 minutes before going outside – most people apply it when they are already outside). The anti-virus virus that I described above does the correct thing: it gets the job done without requiring the customer to change. Mind you, the anti-virus virus would be spread to everyone indiscriminately, so there would be no actual customers, but the point is the same.