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Anonymous users2024-02-07I'm not a professional, so I'll give you some examples.
1. Advertising viruses are some software, and you can get 2 points and 2 yuan for the recommender (for example, setting the xx station as the home page and installing a xx assistant is a network means to make money from advertising).
2. Trojan horse.
As the name suggests, it is a means of stealing the victim's game, bank, etc. account in exchange for payment.
3. Malicious viruses.
This virus is the most annoying - this virus, purely for the purpose of destroying the system to achieve the target of the attack. For example, the owner of this Internet café was jealous of the business of that Internet café, so he went to them and put poison on them, killing the entire Internet café and paralyzing ......
By the way, the kind in the middle is called a Trojan horse, which can control and spy on other people's computers The most representative is the gray pigeon, glacier, black hole remote control ......
The first type is called advertising virus, although it will not be stolen, but if you install too much, it will cause the computer to run slowly, or even the system will not be able to turn on the ...... by errorThe most representative ones are 3721 Internet Assistant, Yahoo Assistant, and Soba ......
The third type is a violent virus, such as panda burning incense, pre-annual worm, and ...... deaf worm
By the way, I also think of a virus -- a worm, which is often referred to as a shockwave virus, which can exploit machine vulnerabilities to force victims to help them attack other people's **, to achieve the purpose of DDDOS.
It's probably these categories, as long as you play a good Microsoft patch, don't mess with the software that doesn't come from the wrong place, it's generally okay Finally, good luck
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Anonymous users2024-02-06There are several types of computer viruses:
1 Network Virus – Spreads through a computer network to infect executable files in a network.
2 File viruses - infect files in your computer (e.g. com, exe, doc, etc.).
3 Boot Virus – Affects the boot sector (boot) and the system boot sector (MBR) of the hard disk.
4 There are also a mix of these three cases, e.g., multimodal viruses (file and boot) that infect both the file and the boot sector, which usually have complex algorithms that use unconventional methods to infiltrate the system, using both encryption and morphing algorithms.
Computer viruses are transmissible, hidden, infectious, latent, excitable, expressive, or destructive. The life cycle of a computer virus: development period, infectious period, incubation period, attack period, discovery period, digestion period, and extinction period.
A computer virus is a program that executes code. Just like biological viruses, they have the characteristics of biological viruses such as self-reproduction, mutual infection, and activation and regeneration. Computer viruses have a unique ability to replicate, and they can spread quickly and often hard**.
They can attach themselves to various types of files, and they spread along with files as they are copied or transferred from one user to another.
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Anonymous users2024-02-05In the years since the development of computers, computer viruses have been an unavoidable topic, and there are various types of computer viruses, and the harm they bring to us is also varied, so commonWhat are the computer viruses?？Below we will bring you a list of common types of computer viruses, hoping to help you.
What are the common computer viruses?
Common types of computer viruses 1, according to the presence of viruses ** division:
Network virus: Spreads through a computer network to infect executable files in a network.
File virus: infects files in your computer (e.g. com, exe, doc, etc.).
Boot virus: Affects the boot sector (boot) and the system boot sector (MBR) of the hard disk.
There is also a mixture of these three situations, for example: multiple types of viruses (file and boot type) infect both the file and the boot sector targets, such viruses usually have complex algorithms, they use unconventional methods to invade the system, and at the same time make Zheng lead use encryption and deformation algorithms.
Common types of computer viruses 2, according to the virus infection channel:
Resident virus: This virus infects a computer and places the part of its memory in memory (RAM), which is hooked up to system calls and merged into the operating system, where it remains active until it is shut down or restarted.
Non-resident virus: This virus does not infect computer memory when it has the opportunity to activate, some viruses leave a small part of the memory but do not transmit through this part, this type of virus is also classified as non-resident virus.
3. Common types of computer viruses are divided according to the destructive ability of viruses
Harmless: Except for the reduction of free disk space in the event of infection, there is no effect on the system.
Non-dangerous: This type of virus simply reduces memory, displays images, emits sounds, and similar effects.
Dangerous: This type of virus causes serious errors in the operation of computer systems.
Very dangerous: This type of virus deletes programs, corrupts data, and cleans the system memory area and important information in the operating system.
4. Common types of computer viruses are divided according to the virus algorithm
Companion viruses: These viruses do not change the file itself, they produce the companion of the exe file according to the algorithm, with the same name and a different extension (com), for example: the companion is xcopy-com.
The virus writes itself to the com file and does not change the exe file, when the DOS loads the file, the companion body sells the high priority to be executed, and then the companion loads and executes the original exe file.
"Worm" virus: Spread through the computer network, do not change the file and data information, use the network to spread from the memory of one machine to the memory of other machines, and the computer will send its own virus through the network. Sometimes they exist in the system and generally do not occupy other resources except memory.
Parasitic viruses: In addition to the companion and "worm" types, other viruses can be called parasitic viruses, which attach to the boot sector or file of the system and spread by shouting the functions of the system.
What are the common computer viruses that have brought you? The entire list of common types of computer viruses.
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Dear users, hello:
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Hello: Computer viruses are programs and do not have the function of automatic evolution.