A computer virus is a kind of malicious computer program, which when executed, replicates itself and inserts its own code. When the replication is done, this code infects the other files and program present on your system.
What is a Computer Virus?
A computer virus is a program which can harm our device and files and infect them for no further use. When a virus program is executed, it replicates itself by modifying other computer programs and instead enters its own coding. This code infects a file or program and if it spreads massively, it may ultimately result in crashing of the device.
These computer viruses are present in various types and each of them can infect a device in a different manner.
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In this article, we shall discuss in detail what is a computer virus and what are its different types. Also, we will read on to know what is an Anti-virus and how it can nullify a virus in our computer devices, along with some sample questions from the competitive exam point of view.
Computer virus are types of malicious software which when executed then make often changes and destroy the computer. In-many cases the virus gets replicated and it makes memory complexity and others kinds make infection to computers.
Virus writers uses social engineering deception and exploit detailed knowledge of security vulnerabilities. The major case of virus attacks are been found in Microsoft Windows running machines.
Computer viruses can create billions of economics wealth damages to the companies-due to this the protecting term were a;so formulated.
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Anti-Virus anti-dose to the virus in computer.
Now the types of viruses can be classified as :
Browser Hijacker. Imagine typing in an internet address and automatically bouncing through several different sites.
File Infector. One of the most common types of computer viruses is a file infector.
Macro Virus.
Polymorphic Virus.
Multipartite Virus.
Direct Action Virus.
Boot Sector Virus.
Web Scripting Virus.
Memory Resident Virus
FAT Virus
Three types of malware: Viruses, worms and Trojans
The above mentions were the types of viruses. There also consist of worms and trojans. Which are most dangerous than virus and worms. Because Trojans are such types of malicious software which can steal the data of the user .