The main ways to manually detect computer viruses

Computer Virus Detection Methods:

1 Manual testing.

Manual testing refers to the detection of viruses through some software tools (such as the functions provided). This method is complex and requires familiarity with machine instructions and operating systems, making it uncommonplace. Its basic process is to use some tools and software to check the relevant parts of memory and disks that are vulnerable to virus attacks and modifications, and to judge whether they are infected by viruses by comparing and analyzing the status under normal circumstances.

This method of detecting viruses is time-consuming and labor-intensive, but it can dissect new viruses, detect unknown viruses, and detect new viruses that are not recognized by some automated detection tools.

2 Automatic detection.

Automatic detection refers to the method of using some diagnostic software to determine whether a system or a floppy disk is toxic. Automatic detection is relatively simple and can be performed by the average user, but requires better diagnostic software. This method can easily detect a large number of viruses, however, the automatic detection tool can only identify known viruses, and the development of automatic detection tools always lags behind the development of viruses, so the detection tool will always fail to identify a relative number of unknown viruses.

There are several ways to detect computer viruses:

1.Manual detection: This is a method that detects different types of viruses by manually checking the computer system. However, this method requires manual processing, is slow and susceptible to subjective factors.

2.Signature detection: This detection method compares the characteristics (signatures) of a known virus with the files being scanned, and if a matching feature is found, it is determined to be a virus. This method has the advantage of high accuracy, but the disadvantage is that it cannot detect novel viruses.

3.Behavior detection: Behavior detection is to determine whether a program has the behavioral characteristics of a virus by monitoring its behavior while it is running. This method is more flexible than signature detection and can detect some unknown viruses.

4.Backdoor detection: Backdoor refers to the vulnerability left in the system by hackers after intruding into the computer, which can enter the system at any time to control and steal sensitive information. Backdoor detection is used to find backdoor vulnerabilities in a system by looking for backdoor files and registry keys.

In summary, manual detection, signature detection, behavior detection, and backdoor detection are all common methods for computer virus detection, and different methods have their own advantages and disadvantages.

Answer]: a, b, c, d

There are several methods for the detection of computer starvation virus: virus characteristics blind detection method, document verification method, behavioral characteristics monitoring method and software simulation method.

Answer]: a, b, c, d

Expert interpretation] There are the following methods for the detection of computer disease limb grinding and virus culture: virus signature detection method, document verification method, behavior blind only feature monitoring method and software simulation method.

At present, the common methods of computer virus detection are: feature method, checksum method, behavior monitoring method, virtual execution method, etc.

For general data and files, the feature method is currently the most widely used and the most basic method, and the checksum method can be used for particularly critical data or files with minimal modification. The behavior monitoring method can detect unknown viruses, and the virtual execution method can detect viruses with packed encryption.