Three methods are used to detect hidden viruses in hard disks and memory, and three methods are used to detect viruses.

Three methods are used to detect hidden viruses in hard disks and memory, and three methods are used to detect viruses.

In fact, the computer virus is like a person who is ill, there will be some kind of symptoms, the virus will leave marks for infection. Therefore, to detect computer viruses, you also need to be targeted. If something goes wrong, check the virus and solve the virus. Computer viruses are stored in hard disks in static mode and reside in memory when activated. Therefore, computer viruses can be detected by hard disks.

In most cases, when detecting a virus on a hard disk, There is no virus in the memory, because some computer viruses may report false reports. Detection of viruses in a hard disk can be divided into Detection of boot zone viruses and detection of file viruses. In fact, the two detection principles are the same. However, due to the different storage methods of viruses, detection is also different. The following solutions can be used to detect hidden viruses in the memory or hard disk.

Search Method:

This method scans specific strings of the virus. If a specific string is found inside the object to be detected, it indicates the virus represented by the byte string.

Analysis Method:

This method can be used to determine whether the detected disk and program contain viruses, identify the virus type and type, and clarify the general structure of the virus.

Comparison Method:

This is a method of comparing the original backup with the detected boot sector or detected file. You can use the printed code list to compare and compare the program.

It can be seen that the comparison method of the original backup and tested programs can be applied to different software and abnormal phenomena can be found. This is a very simple virus detection method, the search and analysis methods are more suitable for computer users and can be quickly detected.