A computer virus can be developed maliciously by anyone wishing to cause harm to systems or computers. They are hidden bits of code that connect to other applications or programs, and, when activated, spread like wildfire. Typically, viruses are found attached to a document or program that is downloaded from the internet or sent via email. The majority of countries believe that the creation and spread of the virus on computers is illegal.
There are many different types of computer viruses that can affect computers in different ways. Certain computer viruses rely on an application in order to begin their work. Others are self-contained and can attack multiple systems without the need for a host. Computer viruses that rely on host programs to infect computers are often called worms, while those that don’t use this method of infection through other programs are known as viruses.
Some viruses infect a system immediately upon arrival, while others are dormant and only activate when the user executes the code. The first computer virus, developed in 1974 and modeled after a biological virus, multiplied itself quickly and caused damage to the system. One example of an extremely destructive virus is the Stuxnet virus that was specifically created to destroy computerized centrifuges that were used to enrich uranium.
The process of creating viruses can be extremely complicated and isn’t for the faint of heart. However it can be a fun and interesting way to test your knowledge of computer programming languages and systems. If you’re willing invest the time and effort there are a lot of resources available that will show you how to make a virus.