Finding the Definition of a Network Virus job

A network virus refers to a set of computer instructions or programs that are cleverly compiled or inserted into computer programs by some hackers to destroy computer functions or data, affect computer use, and can self-replicate and "infect" on the network**.

It is an abnormal program with malicious intent.

Computer viruses can be divided into three types: bootstrap viruses, file viruses and mixed viruses according to the existence of **; According to the link method, it can be divided into three types: source code virus, embedded virus and operating system virus. According to the system classification of computer virus attack, it is divided into viruses attacking DOS system, attacking Windows system viruses, and attacking UNIX system. Today's computer viruses are constantly evolving, including some unique new viruses that cannot be classified according to conventional types, such as Internet viruses (spread through the network, some data carrying viruses more and more), email viruses, etc.

Computer viruses are transmissible, hidden, infectious, latent, excitable, expressive, or destructive. The life cycle of a computer virus: development stage, infectious period, incubation period, attack period, discovery period, digestion period, extinction stage.

Answer]: a, b, c

Network viruses are mainly transmitted through network server access, electronic mailing, and FTP file exchange, disk file sharing, and exchange.

Characteristics: Cybersickness.

The most important feature of the BAI virus is that it is transmitted through the network zhi route, which can be divided into helminthic diseases according to the mode of destruction.

Tolerant viruses, Trojan viruses and aggressive viruses.

Species: Worms are characterized by not destroying themselves after infection, but only constantly replicating themselves, consuming computer resources until the computer crashes and cannot run.

Trojan viruses generally have certain anti-virus software capabilities, are not easy to detect, and are generally not destructive, but when infected, they will lead other worms or aggressive viruses.

An aggressive virus is an attack that damages the software and even hardware of a computer after it has been infected.

There are also mixed types of viruses that have all three of these characteristics.

In terms of propagation mode, there are email-type viruses that spread by e-mail, web-based viruses that are hidden in web pages and are called webpage tags, connective viruses that actively spread through network connections, and P2P viruses that spread through P2P.

Features: A good virus will only destroy some files of the computer. What's bad, a lot of copying, a lot of infected files, a lot of use of the Internet for Winows vulnerability propagation...

Kind: Like 200 more shockwaves! and 200 pandas.

Wait a minute...

Computer viruses have a unique ability to replicate. Computer viruses can spread very quickly and are often difficult to **. They can attach themselves to various types of files.

A contaminated program is capable of delivering viral vectors. When you see that virus vectors appear to be merely in words and images, they may have destroyed files, reformatted your hard drive, or caused other types of disasters. If a virus doesn't inhabit a contaminating program, it can still cause you problems by taking up storage space and degrading your computer's overall performance.

One definition is a program that spreads through the medium of disk, tape, and the Internet, and can "infect" other programs. The other is a latent, contagious, and destructive program that can replicate itself and exist with the help of a certain vector. Others define a man-made program that latent or parasitizes in storage** or programs through different pathways.

When a certain condition or time is ripe, it will replicate and spread on its own, causing the computer's resources to be destroyed by different programs, and so on. In a sense, these terms borrow the concept of biological viruses, which are similar to biological viruses as "pathogens" that can invade computer systems and networks and endanger normal work.