What are the characteristics of a computer virus and what is a computer virus? What are the characte

Dear users, hello:

1. The computer has an abnormality, such as a black screen, a blue screen, a freeze, a file that cannot be opened, etc.

2. Occupy resources. There are unknown files taking up space, etc.

3. The computer slows down and becomes stuck.

4. Loss of account. A virus or Trojan horse is a malicious program that invades a computer and waits for an opportunity to obtain a password, which is a type of computer virus. Usually the Trojan will run automatically, and in the process of surfing the Internet, if you log in to online banking, chatting, etc., your personal security information will be stolen, resulting in users being used by DAOs and property losses.

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What are the characteristics of computer viruses?

Computer virusesAs soon as you hear it, you will know that it is definitely not good for the computer, and in the current situation that there is more and more personal information on the computer, the appearance of viruses will threaten everyone's information security, so what is a computer virus? What are the characteristics of a computer virus? Below we will give you a detailed answer, I hope it can be helpful to you.

What is a computer virus?

A computer virus is a set of computer instructions or programs inserted by the compiler into a computer program that destroys computer functions or data, can affect the use of the computer, and can replicate itself. Computer viruses are transmissible, hidden, infectious, latent, excitable, expressive, or destructive. The life cycle of a computer virus is the development stage, the infection stage, the incubation period, the attack stage, the discovery stage, the digestion stage, and the extinction stage.

A computer virus is a program that executes code. Just like biological viruses, they have the characteristics of biological viruses such as self-reproduction, mutual infection, and activation and regeneration. Computer viruses have a unique ability to replicate, and they can spread quickly and often hard**.

They can attach themselves to various types of files, and they spread along with files as they are copied or transferred from one user to another.

What are the characteristics of a computer virus?

1. Reproduction: Computer viruses can multiply like biological viruses, and when the normal program is running, it also replicates itself, and whether it has the characteristics of reproduction and infection is the primary condition for judging a certain section of the program as a computer virus.

2. Destructiveness: After the computer is poisoned, it may cause the normal program to fail to run, delete the files in the computer or be damaged to varying degrees. Destroy the boot sector and BIOS, and destroy the hardware environment.

3. Infectivity: Computer virus infectivity refers to the fact that a computer virus infects its own replicas or variants to other non-toxic objects by modifying other programs, which can be a program or a component in the system.

4. Latentity: The latent nature of computer disease refers to the ability of computer viruses to attach to other ** parasites, and the invasive virus will only attack when the conditions are ripe, which will slow down the computer.

5. Concealment: computer viruses have a strong concealment, which can be checked out by virus software, and concealed computer viruses appear and change from time to time, and this kind of virus is very difficult to deal with.

6. Triggerability: People who compile computer viruses generally set some trigger conditions for virus programs, such as a certain time or date of the system clock, and the system runs certain programs. As soon as the conditions are met, a computer virus "strikes" and compromises the system.

That's all for you: What is a computer virus? What are the characteristics of a computer virus? All of it.

1.Parasitic, which can be parasitic in a normal program and can run with a normal program, but the virus is not easily detected before it is run.

2.It is contagious and can be transmitted in a variety of ways.

3.Latent, the author of a computer virus can make the virus run automatically at no time. (Unified, a massive outbreak in Mo for a time).

4.Concealment, not easy to detect.

5.Destructive, which can damage the computer and cause it to run slower. Crash. blue screen and other issues.

6.Triggerable lines, the virus can run when conditions are ripe, which greatly increases the stealth and destructiveness of the virus.