What devices can anti-virus software check and disinfect?

The devices that anti-virus software can check and disinfect are U disks and hard disks. Computer viruses are programs that damage computer information or systems. They are generally hidden in U disks, CDs, floppy disks, and mobile hard disks, and spread through these devices. Therefore, anti-virus software needs to detect U disks, CDs, floppy disks, and hard disks. The device is checked and disinfected.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The devices that anti-virus software can check and disinfect are U disks and hard disks.

Computer virus refers to a set of computer instructions or program codes inserted by the programmer into a computer program that destroy computer functions or destroy data, affect the normal use of the computer, and are capable of self-replication.

Computer viruses are contagious, covert, contagious, latent, excitable, expressive or destructive. The life cycle of a computer virus: development period → infection period → incubation period → attack period → discovery period → digestion period → extinction period.

Computer viruses can spread through mobile storage devices: U disks, CDs, floppy disks, mobile hard disks, etc. can all be paths for spreading viruses, and because they are often moved and used, they are easier to obtain. Favored by computer viruses and become carriers of computer viruses.

Therefore, anti-virus software needs to check and disinfect U disks, CDs, floppy disks, hard disks and other devices.

Antivirus software, also known as anti-virus software or anti-virus software, is a type of software used to eliminate computer threats such as computer viruses, Trojan horses, and malware.

Anti-virus software usually integrates functions such as monitoring and identification, virus scanning and removal, automatic upgrades, and active defense. Some anti-virus software also has functions such as data recovery, hacker intrusion prevention, and network traffic control. It is a computer defense system. (Including anti-virus software, firewalls, Trojan and malware detection programs, intrusion prevention systems, etc.)

The task of anti-virus software is to monitor and scan the disk in real time. Some anti-virus software enters the system by adding drivers to the system and starts with the operating system. Most antivirus software also has firewall functionality. Antivirus software's real-time monitoring methods vary from software to software. Some anti-virus software divides a part of the memory and compares the data flowing through the memory with the signatures of the virus database (including virus definitions) carried by the anti-virus software itself to determine whether it is a virus. Other anti-virus software virtually executes programs submitted by the system or users in the divided memory space, and makes judgments based on their behaviors or results.

The method of scanning the disk is the same as the first working method of real-time monitoring mentioned above, except here, the anti-virus software will scan all files on the disk (or user-defined scan files within the scope) do a check.

For real-time monitoring of anti-virus software, its working method varies depending on the software:

• Some anti-virus software divides a part of the space in the memory, and the computer flows through the memory. The data is compared with the signatures of the virus database (including virus definitions) carried by the anti-virus software itself to determine whether it is a virus.

• Some anti-virus software virtually executes programs submitted by the system or users in the allocated memory space, and makes judgments based on their behaviors or results.

The method of scanning the disk is the same as the first method of real-time monitoring mentioned above, except that when scanning the disk, the anti-virus software will scan all the files on the disk ( Or files within the user-defined scan range) do a check.

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