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For medications concerning biological viruses, see Antiviral. Antivirus software was originally developed to detect and remove computer viruses, hence the name. However, with the proliferation of other software testing in the real world improving the process pdf of malware, antivirus software started to provide protection from other computer threats. LSPs, dialers, fraudtools, adware and spyware.


Although the roots of the computer virus date back as early as 1949, when the Hungarian scientist John von Neumann published the “Theory of self-reproducing automata”, the first known computer virus appeared in 1971 and was dubbed the “Creeper virus”. PDP-10 mainframe computers running the TENEX operating system. The Creeper virus was eventually deleted by a program created by Ray Tomlinson and known as “The Reaper”. Reaper was actually a virus itself specifically designed to remove the Creeper virus.

The Creeper virus was followed by several other viruses. The first known that appeared “in the wild” was “Elk Cloner”, in 1981, which infected Apple II computers. In 1983, the term “computer virus” was coined by Fred Cohen in one of the first ever published academic papers on computer viruses.

The first IBM PC compatible “in the wild” computer virus, and one of the first real widespread infections, was “Brain” in 1986. From then, the number of viruses has grown exponentially. Most of the computer viruses written in the early and mid-1980s were limited to self-reproduction and had no specific damage routine built into the code.