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Computer virus knowledge
Understand computer virus 1:
Computer virus is a malicious program that has a destructive effect on computers. They have the following characteristics:
1, destructive Computer viruses can play a destructive role, such as deleting files stored in computer memory and slowing down the running speed of computers. Some viruses, such as cih, can also destroy computer hardware.
2. Concealment. General computer viruses will appear with the illusion of legal procedures to trick users into falling for it.
3. Infectious. Computer viruses can replicate themselves according to preset conditions and spread through file transfer, e-mail and QQ.
Understanding of computer virus II:
There are many hazards of computer viruses, which can be generally divided into remote control, data theft, password theft and spam advertising.
Understanding of computer virus III:
Computer virus is not the familiar biological virus. A computer virus is a program and executable code. However, computer viruses, like biological viruses, have unique replication capabilities. Like biological viruses, computer viruses can spread quickly and are usually difficult to eradicate.
They can attach themselves to various types of files. When files are copied or transferred from one user to another, they will spread with the files.
In addition to the ability to replicate, computer viruses have other characteristics similar to biological viruses: programs infected with viruses can spread virus vectors, just like infectious diseases.
When you see that virus carriers only appear in words and images, they may have destroyed files, reformatted your hard disk, deleted drives or caused various other disasters. If the virus is not parasitic on a single infected program, it will also bring you trouble by occupying storage space and reducing the overall performance of the computer.
Is it similar to the spread of biological viruses? Computer virus? The origin of the name. Trojans work in the same way as viruses. The only difference is that one is to destroy your system, while Trojans focus on stealing users' personal data.
Related reading:
Brief introduction of computer virus
Computer virus is a set of computer instructions or program codes that a compiler inserts into a computer program to destroy computer functions or data, which can affect the use of the computer and replicate itself.
Computer viruses are contagious, hidden, contagious, latent, exciting, expressive or destructive. Life cycle of computer virus: development period? Infectious period? Incubation period? An episode? Discovery period? Digestive period? Extinction period
A computer virus is a program, an executable code. Just like biological virus, it has the characteristics of self-replication, mutual infection and activation and regeneration. Computer virus has unique replication ability. They can spread quickly and are usually difficult to eradicate. They can attach themselves to various types of files, and when files are copied or transmitted from one user to another, they will spread with the files.
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