How do viruses get into my computer?

Multiple pathways. 1.Hanging horse (that's your last one**.) But this ** has been maliciously modified by hackers. A paragraph was inserted. Let your machine automatically ** a file and run).

Solution: Go online and turn on the real-time monitoring of antivirus software.

3.Your machine opens a dangerous port. Being hacked.

Solution: Turn on the firewall when surfing the Internet. And shut down several dangerous ports. All computer accounts plus passwords. Don't be too simple either.

4.Compact disc or USB flash drive floppy disk.

When using this kind of stuff. Be sure to use the antivirus first.

Discs should not run automatically.

The last thing to give you a piece of advice is:Don't take the exe file sent by netizens on QQ。 bat file. cmd file.

Do a good job. Generally, you will not be infected with the virus.

Through portable hard drives, networks, networks.

There are several main ways in which computer viruses can be transmitted:

1) Floppy disk propagation: through the mobile storage is not prepared, these devices mainly include floppy disks, optical discs, U disks, etc. In mobile storage devices, floppy disks are the most widely used and frequently moved storage media, so they have also become a "hotbed" for computer virus parasitism. In the past, most computers were infected with viruses from this route.

2) Hardware device propagation: Propagation through immovable computer hardware devices, which usually have dedicated ASIC chips and hard disks for computers, etc. Clean hard drives can be infected and spread again due to local or moved to other places for use, repair, etc.

Although this virus is very rare, it is extremely destructive, and there is no good detection to prevent it.

A computer virus is a program, an executable one. Just like biological viruses, they have the properties of self-replication, mutual infection, and activation and regeneration. Computer viruses have a unique ability to replicate.

They can spread quickly and are often difficult to **. They can attach themselves to various types of files, and they propagate along with files when they are copied or transferred from one user to another. A computer virus is a set of computer instructions or programs** that the compiler inserts into a computer program to destroy computer functionality or data, and can affect the use of the computer and replicate itself.

Answer]: a, b, c, d

Computer viruses are called viruses because of their contagious nature. There are four types of infection channels: digging floppy disks through chaotic omen; via hard disk; via disc; Tongchai celebrates the Internet, so choose ABCD.