Research on ways and prevention of virus invading microcomputer

First, the way of computer virus invasion

Computer virus has the characteristics of self-replication and spread. From the analysis of the transmission mechanism of computer viruses, can you know? Any medium that can exchange data may become the transmission route of computer viruses. According to the statistical report of computer virus media? At present, the network has become the most important way for viruses to invade microcomputers? Besides? Traditional floppy disks, optical disks and other modes of transmission also occupy a considerable proportion. There are roughly the following four ways?

1, spread through immobile computer hardware devices? These devices usually have special ASI C chips and computer hard disks. Although this virus is rare? But extremely destructive? At present, there is no good detection method to deal with it.

2. Spread these devices by moving storage devices, including floppy disks and tapes. In a mobile storage device? Floppy disk is the most widely used and frequently moved storage medium? Therefore, it has become a "hotbed" for computer virus parasitism. Some computers are infected with viruses in this way.

3, spread through the computer network. Mainly in? With the rapid development of the network, the types and quantities of computer viruses increase rapidly. Computer viruses are becoming more and more harmful and destructive? Computer virus has seriously restricted the current information construction and work in China.

4. Spread through point-to-point communication systems and wireless channels? At present? Isn't this route of transmission very extensive? But it is expected that in the future information age. This way is likely to become the two main modes of virus transmission with the network. Fashion channel ".

Second, the prevention and control of computer viruses

There are two trends in the current virus epidemic in China? One trend is that foreign popular network viruses invade China's computer network. Another trend is the emergence of a large number of local viruses? And the communication ability and destructiveness are getting stronger and stronger. In order to effectively reduce the harm of the virus? Improve our ability to prevent and treat viruses? Every computer user should actively participate in virus prevention and control.

(a) the establishment of computer virus early warning system. Establish a virus early warning system in backbone networks and professional networks such as e-government, finance, securities and taxation in China. Monitor the spread of viruses throughout the network through this system? Discover and capture existing viruses and emerging computer viruses. Should the unit establish a virus emergency system? And establish an information exchange mechanism with emergency agencies established by local public security organs and the national computer virus emergency system? Anyone who finds the virus epidemic should report it in time. At the same time, pay attention to the virus epidemic situation released by the National Computer Virus Emergency Response Center? So that when the virus breaks out, Take precautions in time? Reduce the harm caused by viruses. For the virus accident that happened? Seriously analyze the reasons? Find out why the virus broke through the protection system? Modify the virus prevention strategy in time? And re-evaluate the adjusted virus prevention strategy. Ensure recovery. Reduce losses. Once there is a virus attack? Accident? Start the disaster recovery plan? Try to minimize the damage caused by the virus? Restore the normal operation of the system as soon as possible.

(2) Strengthen the legal construction of anti-virus security? According to the situation? Constantly improve information security laws and regulations. To strengthen the use of computer viruses for theft, * * information and other illegal and criminal activities of discovery, prevention and crackdown. In 2004? The use of trojan horses, malicious web pages and other virus programs to steal online accounts and equipment has increased significantly in online games? The use of Trojan horse programs to steal information is also prominent? The harm caused is becoming more and more serious. Suggest that in cracking down on online illegal and criminal activities? Strengthen the discovery, prevention and investigation of such viruses? Take targeted preventive measures in e-government, online transactions and e-commerce? And strengthen related publicity.

(3) Domestic mail service providers need to improve their own security. At present? E-mail is the main transmission channel for many computer viruses. Especially the last two years? The number of locally produced viruses is on the rise. These viruses often exploit the security vulnerabilities of domestic mail servers? Use these servers as a springboard for spreading viruses. So what? Need a mail service provider to install and use a mail antivirus system? Strengthen the authentication of sending and receiving emails? Establish contact with the National Computer Virus Emergency Center? Found a computer virus spread by mail? Take timely measures? Fundamentally block the spread of the virus.

(4) Constantly strengthen computer technology preventive measures. We as computer users? Always download, install security patches and upgrade antivirus software from software vendors? Install a firewall between the computer and the Internet? Improve the security of the system? System upgrades in newly purchased computers and newly installed systems? Ensure that all known security vulnerabilities are fixed? Use a strong password? Try to choose a password that is difficult to guess? Choose different passwords for different accounts? Always back up important data? Check the backup? Choose to install anti-virus software certified by the Ministry of Public Security? Regular virus detection and cleaning of the whole hard disk? So as to reduce virus attacks.

Because of the diversity of computer viruses? It's hard to cure. And the virus presents a diversified trend. Virus analysis shows? Although new viruses are constantly being produced? However, early virus outbreaks are still common and have developed. Besides. The new virus has better camouflage ability? What if the theme changes in communication? Many viruses pretend to be ordinary programs? Used to paralyze computer users? So what? We should pay more attention to virus intrusion prevention.

Improve computer security awareness. Should computer security training be further strengthened? Is it urgent to establish safety training courses? Adopt the method of grading training? Elementary course for ordinary computer users? On the one hand, improve safety awareness through safety training? On the other hand, master the basic virus prevention and control technology. Is the intermediate course network management for small and medium-sized enterprises? Master the virus prevention and control technology of small and medium-sized network systems through training. Advanced courses are suitable for advanced network management of large networks? Through training, fully understand and master the virus prevention technology and management methods for large networks. Stop the virus? Subjective initiative plays an important role. The spread of the virus Is it often because employees in the enterprise don't know enough about the spread of the virus? There are many channels for the virus to spread? Through the network, physical media, etc. Kill the virus? First of all, what is a virus? What is its harm? Do you know the danger of the virus? Increased safety awareness? The battle to eradicate cancer is half done. Usually? Enterprises should start with strengthening safety awareness? Be alert to the hidden virus hazards in daily work? For example, install a popular online antivirus software? Update virus definitions regularly and kill files of unknown origin before running? Kill the virus once a week? Reduce the number of * * * folders? Try to control permissions and increase passwords when enjoying files? Can well prevent the spread of viruses in the network.

Beware of suspicious emails. With the popularity of the Internet? E-mail has become an indispensable medium in people's work. Convenient and fast, and at the same time improve people's work efficiency? And inadvertently became an accomplice to the virus. There are data showing? Today, more than 90% of viruses are spread by mail. Although the transmission principle of these viruses is simple, this piece is not just a technical problem? Should we also educate users and enterprises? Let them take appropriate measures. Like what? What happens if all Windows users close VB scripts? Viruses like Kournikova can't spread. In order to reduce the loss caused by the virus? Do you usually pay attention to operating habits? For example, prepare a clean floppy disk that can start normally? Used to start the system? Don't download software from unknown websites easily? So as not to catch the virus? Don't open unknown emails and their attachments easily? Reduce the risk of infection and so on. Anyway. We should use all reasonable and scientific methods? Keep learning to improve your computer use and protection ability? In the increasingly complex network age? Find computer viruses earlier and take better precautions? Let computers and networks really become our right-hand man? To improve our work rhythm and efficiency.