View your computer to find out what viruses are like

All kinds of viruses have been put together today. Once you find that your computer is abnormal, it is regarded as a virus, and anti-virus software is everywhere, in a word, it seems that the "culprit" is not the same. As a result, the virus software is used one after another. Maybe the RMB is used one after another, or there is no trace of the "culprit, in fact, this is not necessarily a virus.

Such examples are not uncommon, especially for some beginner computer users. Next, I will introduce how to determine whether a virus is detected in the following aspects based on my computer experience and enterprise network maintenance experience, hope to help identify "real virus! Differences and connection between viruses and software and hardware faults: Computer faults are not only caused by viruses, but also caused by software and hardware faults, the network is mostly caused by permission settings. Only by fully understanding the differences and connections between the two can we make a correct judgment and discover the virus in time when it comes. The following briefly lists some common symptoms of computer faults caused by virus, software, and hardware faults. Symptoms: Possibility of virus intrusion, possibility of software and hardware faults Frequent crashes:The virus opens many files or occupies a large amount of memory; the system is unstable (such as poor memory quality and poor hardware overclocking performance); the large-capacity software occupies a large amount of memory and disk space; some testing software (with many bugs) and insufficient hard disk space are used. When running software on the network, it may be because the network speed is too slow, the program running is too large, or the hardware configuration of the workstation is too low. All of the above situations may cause frequent system crashes. Therefore, when using the latest anti-virus software to detect and kill viruses, we recommend that you first check whether the hardware or system is faulty. The system cannot be started.: There are also many reasons for the system to fail to start normally. The following lists the possible causes of this problem. The virus modifies the boot information of the hard disk or deletes some startup files. If the boot virus boot file is damaged, the hard disk is damaged, the parameter settings are incorrect, and the system file is deleted by mistake. File cannot be opened: Files cannot be opened normally. Most files are related to viruses, but the system or other software conflicts cannot be ruled out. The virus modifies the file format, and the virus modifies the File Link location. File damage; hard disk damage; the link location of the file shortcut has changed; the software for editing the file has been deleted; if the file storage location on the server changes in the LAN, the workstation does not promptly refresh the server content (the resource manager is opened for a long time ). Insufficient memory frequently reported: The virus illegally occupies a large amount of memory, opens a large number of software, runs the software that requires memory resources, the system configuration is incorrect, and the memory is not enough (the current basic memory requirement is 128 MB). Insufficient hard disk space: Virus copies a large number of virus files; the size of individual hard disk partitions is too small; a large number of large-capacity software is installed; all software is installed in one partition; the hard disk itself is small; if the system administrator sets the "Private disk" space limit for each user in the LAN, the system administrator can view the size of the entire network disk, in fact, the capacity of the "Private disk" is used up. A read/write signal is generated when a floppy disk or other device is not accessed.: Virus infection; a floppy disk has taken away files that have been opened on a floppy disk. A large number of unknown files: Virus copy files, which may be temporary files generated during software installation, or software configuration information and Operation Records. Black screen startup: Virus infection, Display fault, Display Card fault, motherboard fault, overclock, CPU damage, etc. Data Loss: The virus has deleted the file; the hard disk sector is damaged; the original file is overwritten due to restoration; if the file is on the network, it may be deleted by another user by mistake. The keyboard or mouse is locked for no reason: Virus, special attention should be paid to "Trojan"; damaged keyboard or mouse interface on the motherboard; running a keyboard or mouse lock program, the program is too large, the system was very busy for a long time and showed that pressing the keyboard or mouse did not work. Slow system running speed: The virus occupies memory and CPU resources, and runs a large number of illegal operations in the background; low hardware configuration; too many or too large open programs; incorrect system configuration; if the program running on the network is mostly caused by the low configuration of your machine, it may also be because the network is busy, and many users open a program at the same time; another possibility is that your hard disk space is insufficient for temporary data exchange during program running. The system automatically performs the operation.: The virus performs illegal operations in the background. The user sets the relevant program to run automatically in the registry or Startup Group. After some software is installed or upgraded, the system needs to be restarted automatically. Through the above analysis and comparison, we know that most faults may be caused by human or software or hardware faults. Do not rush to assert when an exception is found, when the anti-virus solution cannot be solved, the fault characteristics should be carefully analyzed to eliminate the possibility of software, hardware and human resources. To truly identify viruses and promptly scan and kill viruses, we also need to have a more detailed understanding of the virus. It is best to visit some anti-virus websites or forums frequently to get more exposure to some phenomena, this improves the maintenance system.