What is the name of the worm that was written in 1988 that could replicate itself across computers on the internet?

Morris worm.

Explanation:

The Morris worm is also known as internet worm. It was written on November 2, 1988. The Morris worm is replicated via the internet across the computer. Initially, according to some scientists, the morris worm is not causing any damage to the computer but it describes the list of security fault.

The morris worm is a self replicated program it causes the computer to slow down the speed.