Pay attention to eight key steps of comprehensive prevention of network virus

Looking at the development of computer viruses around the world, we find that the speed of virus development is still increasing, especially after the network has spread to every family. And ordinary users know nothing about the virus, often infected with the virus and don't know it. The values of today's society play a decisive role in the development direction of the virus. For example, the previous viruses are all to show off technology (such as CIH virus) and satisfy personal vanity. Later, it developed into malicious destruction, modification or deletion of user data. Now for the purpose of economic benefits, we steal and sell user information. Therefore, data security has become the first problem to be solved today.

Some users said, "I don't have to worry about installing anti-virus software", but it's not. Antivirus software plays the role of prevention and cleaning, and all its functions should be based on its virus database. If a new virus is not included in the virus database, anti-virus software will not play its due role. Therefore, preventing computers from being infected with viruses is not only what anti-virus software should do, but also users need to improve their anti-virus awareness to reduce the probability of being infected. Now let's discuss several key factors of anti-virus.

1. Install anti-virus software: Now people are aware of the importance of anti-virus software, and general merchants will install anti-virus software for newly equipped computers. The efficiency of antivirus software depends on antivirus engine and virus database, and the efficiency of engine has great influence on antivirus efficiency. An excellent engine can lay a good foundation for the anti-virus process, and with the latest virus database, it can achieve good anti-virus effect. Users should choose products with good reputation, update virus database in time, conduct comprehensive scanning regularly, and effectively prevent and clean virus programs.

2. CD-ROM media: Since floppy disks are rarely used, they will not be discussed here. Regarding the CD, the easiest way is to scan it with anti-virus software before opening it to ensure that there are no virus files in it. And try not to use the auto-play option to prevent the virus from loading automatically when the CD enters the CD-ROM drive.

3. Download common sense: At present, the easiest way to spread viruses is to download them online. Many users habitually download files and execute them directly. If the antivirus software doesn't give an alarm, the file is considered safe. This kind of behavior is dangerous, but it is the easiest to be exploited. The two key points of downloading files are download source and file size. When downloading, try to download from a relatively reliable website or a safer website that you frequently visit. Some people like to download on BBS. Of course, not all BBS are unsafe, but viruses often appear on BBS. Virus publishers attract users to download with attractive slogans. What users think is the software mentioned in the title is actually a virus.

This involves the second factor-file size. Usually, virus source files are very small. If the size of the downloaded file is quite different from your expected size, you should be vigilant. For example, if the nominal size of a software is 13M and the file you downloaded is only 100K, it is probably a virus.

E-mail: this is an old topic. The principle is not to open strangers' emails at will, especially attachments. There used to be a technology that realized the phenomenon of virus when opening email, but it is rarely used at present, and the efficiency is not as high as that of network download. Most of them add virus sources in attachments.

5. Use client-based firewall or hardware filtering measures: It can enhance the computer's immunity to hackers and malicious code attacks, but it is not suitable for home users. You can also scan the computer for viruses in some security stations to see if there are security vulnerabilities and viruses, and install the vulnerability patches of the system or software in time.

6. Deceptive advertising: The principle of deceptive advertising is to use advertisements to attract users to click. There is no phenomenon after clicking, but at this time, the virus or Trojan file has been automatically downloaded and executed in the background, but the user has no knowledge. However, such advertisements generally do not appear on large or extraordinary websites, otherwise it will have a great impact on the reputation. Generally only appears on relatively small private websites. They all make money by these viruses and Trojans, but such websites will soon close down. So users should not click on advertisements easily unless you can be sure that the advertisements are virus-free.

7. Webpage virus: Compared with 6, it is similar to automatically downloading virus when opening a webpage. Many people have seen opening a web page and then opening it until it crashes. The principle is the same, but it is changed to download viruses and trojans. The precautionary principle is not to log on to unfamiliar websites, especially those posted by others. Followed by a string of characters.

8. Other forms of documents: for example, switching office software. Wps or Pdf files to prevent macro viruses. Of course, this is not a complete solution to completely avoid viruses, but it is a good way to avoid virus entanglement. The current anti-virus software generally has the anti-virus function of office software, so it must be turned on.

In a word, users' online behavior also affects the probability of being infected by viruses, so users can't just rely on anti-virus software to complete all prevention work. It is also an important content of anti-virus work to standardize personal online behavior. Anyway, for the safety of your computer, let's not bother. Raising awareness of prevention will save you the trouble you want to recruit after poisoning.