Once born, they won't go away. Of the thousands of computer viruses cataloged by virus hunters so far, not one species of them has gone extinct. According to the companies that write antiviral software there are several dozens of new computer viruses created per week. They'll be with us for as long as we have computers. The reason life cannot be halted is that the complexity of life's dynamics has exceeded the complexity of all known destructive forces.
Life is far more complex than nonlife.
This stubborn persistence in life is directly due to the complexity of the human body. In contrast, a well-built car that managed to puff its way to an upper limit of 200,000 miles before blowing a valve would have run for about 5,000 hours. A jet turbine engine may run for 40,000 hours before being rebuilt. A simple light bulb with no moving parts is good for 2,000 hours. The longevity of nonliving complexity isn't even in the same league as the persistence of life.