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Friendly Worms Facing Friendly Fire


When a colleague pointed me at this article about some MS research on using worm techniques to distribute patches more efficiently, I had a moment of extreme déjà vu. After all, Fred Cohen was talking about beneficial uses of viruses in the mid-80’s. But since then, we’ve had a number of attempts occur that prove the old adage that the road to hell is paved with good intentions.

Back in 2001 we saw CodeGreen attempt to locate and patch machines infected with the infamous CodeRed worm. In a variety of other cases, one piece of self-propagating code (worm) has tried to patch backdoors or vulnerabilities, but usually in a self-preservation attempt against a rival author rather than for any altruistic purpose. Examples of this include the Linux Cheese worm and a variety of Bagle and Netsky variants that attempted to remove the other during the much-publicized “Virus Wars” of 2004. Computer Security Research - McAfee Avert Labs Blog





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