What is Computer Virus? and How to protect against Computer Virus

By the way, many people who know how to run a computer will be familiar with the term computer virus. But if you do not know, then today you can know a lot about computer viruses, just you have to read this article from beginning to end.

What is Computer Virus

In this article, we will talk about some topics related to computer viruses such as |

  • What is Computer Virus?
  • How many types of viruses are there?
  • What are the names of some of the main viruses so far?
  • How do viruses spread in the computer?
  • How to avoid computer virus?
By the way, many people who know how to run a computer will be familiar with the term computer virus. But if you do not know, then today you can know a lot about computer viruses, just you have to read this article from beginning to end.

What is computer virus - Computer virus information

Different software is required to run the computer. These software are programs that are made up of coding. With the help of these software, we work on the computer. There is a special kind of software for every particular task.

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Similarly, a computer virus is also a small software program that is created by Coding. By the way, VIRUS in the computer language means "Vital Information Resources Under Siege".

Just as the virus enters the human body and makes him sick, similarly the computer virus enters the computer and affects its functioning.

What can a computer virus do?

It enters the computer, deletes all its files or data or spoils them. The virus remains active until the program is run on the computer.

As soon as a program is RUN in the computer, the virus becomes active and fails to connect itself to the memory of the computer and on seeing it destroys all the data of the entire computer.

Information about computer viruses (makes it a con)

Humans have made computer and all its software. Which are called Software Developer in computer language. In the same way, Computer Virus is also made by developers, but it is the people who want to steal data from another computer or destroy the existing data in another computer.

Name of computer virus - Information about First Computer Virus

The first computer-virus creeper was discovered on Arpanet in the early 1970s. Let me tell you in short what is ARPANET.

ARPANET is the world's first network built using Packet Switching and IP / TCP (Internet Protocol / Transmission Control Protocol). Arpanet is considered the world's first Internet network in the history of the Internet.

Information about Computer Virus Names and Year

Year         Virus name

1970 Creeper
1995 The Concept virus
1988 CIH
1998 The Morris worm
1999 Melissa
2000 I Love You
2000 The Anna Kournikova worm
2001 Code Red
2002 Beast Trojan Horse
2003 The Blaster Worm
2004 My Doom
2005 Poisonlvy
2006 Storm worm
2006 Leap
2007 Mebroot
2008 Conficker
2009 Stuxnet
2013 Crptolocker
2014 Backoff

Types of computer viruses

Nowadays Computer Viruses are divided into 6 Broad Categories or Types-

  1. Boot Sector Virus
  2. File Infection Virus
  3. Multipartite Virus
  4. Network Virus
  5. E-mail Virus
  6. Macro Virus

#1 Boot Sector Virus

Boot sector viruses directly attack the boot sector of the hard drive and infect critical components of the boot process. The boot sector of any hard drive contains some important information that controls the hard drive and parts of the operating system.

The purpose of such viruses is to successfully load into system memory when the boot process starts.

#2 File Infection Virus

File virus is a specially coded virus that exe it. files, compressed files such as zip files.

It is set as soon as the program starts. From there it spreads to other files and programs. This virus first duplicates itself and then starts its intended mission.

These viruses go into the computer through a computer program and until they find the program for which they are written, it remains DeActive and when the program is run, these viruses become active.

#3 Multipartite virus

This virus is both file virus and boot sector virus. Such viruses spread through different types of media. Once embedded in system memory, these viruses make their way to the hard drive and eventually infect the boot sector.

For the boot sector, these viruses spread to executable files and infect the entire system. This type of computer virus was responsible for many System Crashes in the past due to its dual features, ie file viruses and boot sector viruses.

#4 Network virus

Network viruses are specifically made for networks. The virus spreads over the local area network and eventually the Internet, but in most cases, the virus spreads within folders and drives.

#5 E-mail Virus

This is known as a macro virus. E-mail virus is capable of spreading itself through e-mail. A suitable example of this virus is the I LOVE YOU virus which was a very destructive virus all over the world.

This is the reason that the user is advised not to open unknown mail.

#6 Macro virus

Macro viruses are the most common form of computer virus that infects files that use macros in programs.

For example, the most appropriate example of a program that uses macros is Microsoft Office ( Word documents, Excel spreadsheets, Access databases, files created in PowerPoint).

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Macro viruses came in 1995 and the first virus infected the Microsoft Word file, macro viruses are found in large numbers. Macro viruses have also become an important type of computer virus. It is important to be cautious and careful about these computer viruses as they can seriously damage your system.

You can lose your important data due to these viruses. Take every precaution when opening suspicious files.

How does a virus get into the computer?

#1 Email Attachments

Most viruses spread through email. Email Attachments is a file sent with an email. An email may contain an infected file attachment.

If the user opens it and downloads Email Attachments, the virus can spread. When it is activated, it can damage the computer. It can delete files on the hard disk. Virus can be sent to all email addresses of email-address book.

#2 Network

An infected computer can spread a virus when connected to another computer or network. The Internet is an example of such a network.

When a user downloads a virus-infected file from the Internet, the virus is copied to the computer.

#3 Infected Flash Drives or Disks

Flash drives and disks are the main cause of spreading viruses. Flash drives and disks are used to transfer data from one computer to another.

When the user copies the infected files using flash drive and disk, then a virus gets copied from one computer to another.

#4 Pirated Software

An invalid copy of the software is called pirated software. The virus can spread if the user installs pirated software containing the virus.

A variety of Pirated Software are available from CDs and the Internet. Some companies intentionally add viruses to the software. If the user uses the software without purchasing a license, the virus is automatically activated.

#5 Infected Pornography Websites

Thousands of unsafe websites can infect computers with viruses. Porn websites are mostly infected, so by visiting these websites, the user's computer also gets infected by virus.

These websites have been developed to spread viruses or other unethical content. When this material is downloaded, the virus is transferred to the user's computer.

How does a virus affect a computer?

When the virus gets on the computer, the following effects are seen on the computer.


  • The computer hangs.
  • Speed ​​becomes slow.
  • Files /Folders can be destroyed.
  • There may be a problem with the computer booting.
  • Consumption of electricity can be high.
  • Pop-up windows start to open.

How to protect against computer virus

How To Protect Your Computer From Malware and Other Virus Attacks


  • Whenever you add a mobile, PAN drive or any other device to your computer, first check if it is infected with the virus.


  • If you download any file, video from the internet, make sure that the site is good.
  • Always keep a good anti-virus on the computer.
  • Be careful while opening your email. Do not open spam emails.
  • Take back-up of your computer system periodically.

Wrapping up on What is Computer Virus? and How to protect against Computer Virus

Today I gave you information about what is computer virus? and how to protect against computer virus, What are some of the main virus names? How does this virus spread etc.

I hope you like this information. If you have any questions about this, then you can ask for it by commenting in the comment box and you can share the information of these viruses with your friends too, by sharing this article on social media.

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TechByteBox - OneStop Blog For Techies: What is Computer Virus? and How to protect against Computer Virus
What is Computer Virus? and How to protect against Computer Virus
By the way, many people who know how to run a computer will be familiar with the term computer virus. But if you do not know, then today you can know a lot about computer viruses, just you have to read this article from beginning to end.
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