Virus–this is the most common type of malware that will be known to people. The reason it's classified as a virus is cultural, rather than anything else. At the same time, the media ran the headlines about the first computer virus as reports about AIDS spread. There were obvious comparisons at the time that could be easily drawn between the two, propagated by contact with a co-worker
Virus – this is the most common type of malware that people will be aware of. The reason that it is known as a virus, rather than anything else, is historical. The press ran the stories of the first computer virus at the same time as articles concerning the spread of AIDS. At the time, there were simple parallels that could be easily drawn between the two, propagation through interaction with a contaminated party, the reliance on a host and the ultimate “death” of anything infected. This resulted, and still does occasionally, in concerns that people could become “infected” with a computer virus.
As defined by Malwarebytes Labs
A Computer virus is “malware attached to another program (such as a document), which can replicate and spread after an initial execution on a target system where human interaction is required. Many viruses are harmful and can destroy data, slow down system resources, and log keystrokes.”
As defined by Norton
A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.
As defined by Wikipedia
A computer virus is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code. When this replication succeeds, the affected areas are then said to be "infected" with a computer virus.
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