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computer viruses

What is a computer virus and how does it work?

A computer virus is a self-replicating code which copies itself to another program, computer boot sector or document and corrupts or damages that program, boot sector or document. The term “virus” is also commonly, but inaccurately, used to refer to other types of malware, including adware and spyware programs that do not have the ability to self-replicate.

How do computer viruses work?

Once a virus has infected a computer, it will start to replicate itself. The virus will first attach itself to a program or document, and then start to spread to other programs and documents on the same computer. It can also spread to other computers on the same network. As the virus continues to replicate, it will start to cause problems with the programs it has infected. It may cause the programs to crash or to act in unexpected ways. In some cases, the virus may delete files or damage hard drives.

What is the difference between a virus and a worm?

A worm is a type of virus that is able to spread itself without attaching itself to a program or document. Worms are able to spread themselves by exploiting security vulnerabilities in software. They can also spread themselves by sending email messages with infected attachments.

What is the difference between a virus and malware?

The term “malware” is a general term used to describe any type of malicious software, including viruses, worms, Trojans, and spyware.

What is the most common type of computer virus?

A virus is a type of malware that consists of a piece of code that has the potential to copy itself and corrupt system files. There are many different types of computer viruses, but some of the most common are listed below.

1. Boot Sector Virus – This type of virus infects the boot sector of a hard drive, making it difficult to start up a computer.

2. File Infector Virus – This type of virus attaches itself to executable files, so that when the file is run, the virus is executed as well.

3. Macro Virus – This type of virus is written in a macro language and embedded in documents such as spreadsheets or word processing documents. When the document is opened, the virus executes and can infect other documents on the same computer.

4. Ransomware Virus – This type of virus encrypts files on a computer, making them inaccessible. The hacker then demands a ransom be paid in order to decrypt the files.

5. worm Virus – This type of virus is designed to spread itself by creating copies of itself on other computers, without the need for a user to execute a file.

The most common type of computer virus is the file infector virus. This is because it is easy to spread, for example by emailing an infected file to a friend. Macro viruses are also common, because they can be spread through documents that are sent between people.

We used malwarezero.org to write this article about computer viruses. Click here to learn more.

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