Computer and mobile phone viruses are better to nip in the bud. If comprehensive protective measures can be taken, the possibility of infection will be reduced, and prevention is one of the effective measures to avoid large-scale virus infection.
First of all, users should be alert to antivirus. By using anti-virus technology and management measures, some viruses cannot break through the computer security barrier and spread widely. Individual users should upgrade their operating systems and antivirus products in time, because viruses are generated at a rate of 4-6 per day. Anti-virus products must adapt to the development of viruses and upgrade constantly, so as to identify and kill new viruses and provide a relatively safe environment for the system.
Every computer user should abide by the laws and regulations on virus prevention, so as not to create or spread viruses. Develop good computer habits, such as regularly backing up system data files; External storage devices should be disinfected before use; Don't visit illegal or unknown websites, don't download bad files, don't connect to unknown WiFi, and don't scan QR codes at will.
2. Prevention of Trojan virus
Trojan horses can be deleted manually or through antivirus software. While detecting and removing trojans, we should also pay attention to the prevention of trojans, so as to nip in the bud.
(1) Don't click on unknown websites or emails, and don't scan QR codes of unknown origin. Many Trojans are spread through URL links, QR codes or emails. Don't open an email of unknown origin, and delete it as soon as possible. Smart clients should not scan unauthenticated QR codes at will.
(2) Don't download software provided by unofficial authorities. If you want to download the software you must always have, you'd better find some well-known websites to download it, and don't download and run the software of unknown origin. And before installing the software, it is best to use anti-virus software to check whether there is a virus, and then install it.
(3) Make an official patch package for the operating system in time to fix loopholes, and only open common ports. Trojans generally open ports on the system through vulnerabilities, leaving a back door, thus uploading Trojan files and executing code. While fixing the vulnerability, they need to check the port and close the suspicious port to ensure that the virus cannot spread.
(4) Adopt real-time monitoring program. When surfing the Internet, it is best to run the anti-Trojan real-time virus monitoring and killing program and personal firewall, and regularly check whether the system has viruses. It is also necessary to frequently upgrade the system and update the virus database, pay attention to relevant news announcements about network security, and take effective measures to prevent Trojans in advance.