Talking about the spreading ways and preventive measures of computer virus.

Computer viruses spread in the following ways

1. The virus spreads through mobile storage devices, such as U disk, CD-ROM, floppy disk and mobile hard disk. It may be the path to spread viruses, and because it is often moved and used, it is more likely to be favored by computer viruses and become the carrier of computer viruses.

2. Spread through the Internet: The network mode described here is also different. Web pages, emails, QQ, BBS, etc. It may be the way for computer viruses to spread through the Internet. Especially in recent years, with the development of network technology and the operating frequency of the Internet, the speed of computer viruses is getting faster and faster, and the scope is gradually expanding.

3. Spreading by taking advantage of the weaknesses of computer systems and application software: In recent years, more and more computer viruses spread by taking advantage of the weaknesses of application systems and software applications, so this way is also divided into the basic ways of spreading computer viruses.

Preventive measures:

(1) Install the latest antivirus software, upgrade the virus database of antivirus software every day, regularly kill computer viruses, and turn on all monitoring of antivirus software when surfing the Internet. Cultivate good online habits.

(2) Do not execute the software that has not been disinfected after downloading from the network; Don't browse or log in to strange websites casually, and strengthen self-protection. There are many illegal websites now, and malicious codes are infiltrated. Once opened by users, it will be implanted with Trojans or other viruses.

(3) Cultivate a conscious awareness of information security. When using mobile storage devices, try not to enjoy these devices, because mobile storage is also the main way of computer transmission and the main target of computer virus attacks.

In places with high requirements for information security, the USB interface on the computer should be closed, and a special plane should be used if possible.

(4) Patch the WindowsUpdate function for the whole system, and upgrade the application software to the latest version, such as player software and communication tools. , so as to prevent viruses from invading the system through web trojans or spreading viruses through loopholes in other application software;

Isolate the computer affected by the virus as soon as possible and use the computer.

Cheng, if there is a virus on the computer or the computer is abnormal, it is necessary to interrupt the network in time; When it is found that the computer network has been interrupted or the network is abnormal, immediately interrupt the network to prevent the virus from spreading in the network.

Extended data:

Only when the virus meets certain conditions will it cause fatal damage to the computer. The computer or system will not react immediately after poisoning, and the virus will hide in the system for a long time.

For example, the most unforgettable thing is the CIH that broke out on 26th, in addition to the famous "Black Friday" that broke out every Friday at 13, and so on. Viruses are usually attached to normal hard disks or programs, and it is difficult for computer users to find them before they are activated.

Its programming skills are very high, and it is a short and pithy executable program, which has a devastating effect on computers. Generally, no user actively executes the virus program, but the virus will take effect after its conditions are ripe.

Or destroy the program, disturb the system work, etc. Unauthorized operation on a computer is a typical feature of a computer virus, which will automatically run without the permission of the operator.

Baidu Encyclopedia-Computer Virus