What are the viruses on my computer? What are the common computer viruses?

Hackers and virus makers have never been crazier. According to a newly released "2006 Annual Report on the Epidemic of Chinese mainland Computer Viruses and Internet Security," because hackers generally use programs to encapsulate viruses, which is equivalent to encrypting and deforming viruses and realizing "mechanized production of viruses," the number of new viruses that appeared in 2006 has increased dramatically to 234211, which is almost equal to the total number of all previous viruses.

More than 90% of these new viruses have obvious interest characteristics, such as stealing personal information and various passwords. Among them, there are 167387 viruses that steal personal virtual property information such as user passwords, accounting for the total number of viruses. This year also saw the emergence of the first ransomware virus "process killer variant" in China.

In terms of the number of infected computers, the old drug kings such as "Gray Pigeon" and "Gao Bo", which were raging in the past, have abdicated, and the "Panda Burning Incense" virus that broke out at the end of the year has come to the top and become the new drug king of the year.

Since 2006, the trend of hacker gangs fighting antivirus software has become more and more obvious, and it has changed from "sneaky" at the beginning to a blatant technical confrontation. For example, dozens of variants of the "Orange August" malignant virus will make many mainstream antivirus software and personal firewalls unable to open, and even cause the system to appear "blue screen", automatic restart, crash and other conditions during antivirus.

Top 10 viruses in 2006.

1. Panda burns incense (

2. Wiggin worm (

4. Legendary Terminator (

5. Journey Trojan (

6. QQ pass (

7. Wiltsov (

8. Call the door rootkit (

9. Gray pigeon back door (

10, Warcraft Trojan (

In 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.

According to destructiveness, it is divided into benign virus, malignant virus, extremely malignant virus, and catastrophic virus.

It is divided according to the mode of infection.

Boot zonal virus.

Boot zone viruses are mainly spread in the operating system through floppy disks, infect the boot area, spread to the hard disk, and can infect the hard disk"Master boot record"。

File viruses.

File viruses are file infectors, also known as parasitic viruses. It runs in computer memory and usually infects files with extensions such as com, exe, sys, etc.

Mixed viruses.

Mixed viruses have the characteristics of both guide region viruses and file viruses.

Macro Virus A macro virus is a macro that is written in the basic language and hosted on Office documents. Macro viruses affect various operations on documents. Yo.