Industrial computer virus refers to a set of instructions or program code that can affect the normal operation of the machine and reproduce itself through some unconventional means, which has several important characteristics of propagation, concealment, destruction and infection. What are the manifestations of viruses in industrial computers? How can we tell if a computer has a virus?
1. Running speed
After the virus in the industrial control computer, the function of the computer will be much lower than the normal function, but it does not necessarily mean that the slow operation of the computer is the virus, and the center is not equivalent. The slow operation of the industrial computer may be caused by too many fragmented files on the hard disk, too high CPU memory occupied by the industrial computer, low machine functions, and too much adware installed.
2. CPU usage
If it is found that the CPU occupancy of the industrial computer is less than 70%, this situation is normal. Once you find that the value exceeds 90% and continues for a long period of time, you need to pay special attention to whether there is a virus in your computer. Because if the industrial computer is infected with a virus, there will be a lot of worms and viruses in the system to reproduce and imitate, resulting in high CPU usage.
3. System moment
Some viruses do not want to be found by themselves, they will be displayed to a specified moment after the industrial computer is started, although as one of the equipment in the industry that continues to run uninterruptedly, it does not need to be started often, but after occasional maintenance or sudden restart of some failures, it is necessary to observe whether the time displayed by the computer has been modified.
4. Software paralysis
The software here refers to protection software similar to QQ Butler, Kingsoft Poison Tyrant, 360 and other protection software that is paralyzed. Because the protection software is the nemesis of the virus, it can hinder the reproduction and imitation of the virus to a certain extent, so the first thing after the invasion of the industrial computer virus is to close the automatic protection module of these software.
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