A computer virus is a harmful program that is created by people who wish to cause harm or disruption to computers and systems. They are coded bits that are attached to other programs or applications and when activated, spread like wildfire. Viruses are typically found on documents or programs that have been downloaded from the internet or transmitted via email. Most countries believe that spreading and creating computer viruses is illegal.
In the world of computer viruses, there are several different types that can infect the system in various ways. Certain computer viruses rely on an application in order to begin their work. Others are not dependent and can attack multiple systems without the need for a host. Computer viruses that use host programs to infect computers are commonly referred to as worms, while those that don’t use this method of infection by using other programs are referred to as viruses.
Certain viruses infect systems immediately upon insertion, while others remain dormant, and only become active when the user executes the code. The first computer virus, created in 1974 and identical to a biological virus, spread itself quickly and caused damage to the system. Stuxnet is an example of a destructive computer virus. It was created to destroy computerized centrifuges which were used to enrich the uranium.
It is not for the faint-hearted to attempt this task. It can be a fascinating method to test your knowledge of computer programming. If you’re willing to put in the effort and time there are a lot of sources that will help you create an infection.