How to classify computer viruses according to the mode of transmission in computer networks

This article will explain in detail how to classify computer viruses in computer networks according to the mode of transmission of computer viruses. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

According to the infection mode of computer virus, it can be divided into: 1, guided virus, refers to the computer virus parasitic in the disk boot area or the main boot area; 2, system virus, will use its own program to join the operating system or replace part of the operating system to work, has a strong destructive power, will lead to the paralysis of the whole system; 3, application virus.

Pilot virus

A bootstrap virus refers to a computer virus parasitic in the disk boot area or the main boot area. When booting the system, this virus does not judge whether the content of the main boot area is correct or not, and invades the system, resides in memory, monitors the operation of the system, standby infection and destruction. According to the parasitic position of the boot virus on the hard disk, the main boot recording virus and the partition boot recording virus can be subdivided. The master boot records the main boot area where the virus infects the hard disk, such as cannabis virus, 2708 virus, torch virus, etc., and the partition boot records the active partition boot records of the hard disk infected by the virus, such as globular virus, Girl virus, etc.

Systematic virus

Operating system virus will use its own programs to join the operating system or replace part of the operating system to work, has a strong destructive power, will lead to the paralysis of the whole system. And because of the infection of the operating system, the virus will replace the legal program module of the operating system with its own program fragments when running. According to the characteristics of the virus and the status and function of the legal program module in the replaced operating system in the operating system, as well as the way in which the virus replaces the operating system, the operating system is destroyed. At the same time, the virus is also very infectious to the files in the system.

Application virus

The application type virus is also known as the source code type virus, which attacks the program written in the high-level language. The virus is inserted into the source program before the program written in the high-level language is compiled, and becomes a part of the legal program after compilation.

This is the end of the article on "how to classify computer viruses in computer networks according to the mode of transmission of computer viruses". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.