The most common type of virus

Have you ever thought of a virus that can be drilled into the "body" of another program? Some viruses can take part of other programs and their generation? These are the things that the virus dictionary will talk about. This time to bring you the "DOS virus", "Windows Virus", "Intrusion Virus", "embedded virus", "shell-like virus" and "Virus manufacturing tools."

DOS virus:

A virus developed by a pointer to a DOS operating system. There are few new DOS viruses, and because of the Win9x virus, the DOS virus is almost extinct. However, the DOS virus can still be infected in the Win9x environment, so the Win9x user will be infected if the infection file is executed. We use anti-virus software to kill more than half of the virus is a DOS virus, the DOS era of the prevalence of DOS virus. But the vast majority of these viruses, with the exception of a handful of viruses that make users tremble with fear, are mostly viruses created by curiosity or a certain distortion of the public code.

Windows virus:

Mainly refers to the virus for the Win9x operating system. Today's computer users generally install Windows system, Windows virus generally infected Win9x system, the most typical of the virus has CIH virus. But that does not mean that the system is a Winnt series including Win2000 computers. Some windows viruses are not only infected on the Win9x, but can also infect other files on the Winnt. The main infected file name extension is Exescrdllocx, and so on.

Intrusion virus:

You can replace a portion of a module or stack area in a normal program with itself. Therefore, this kind of virus only attacks certain specific programs, the pertinence is strong. Generally difficult to find, clear up more difficult.

Embedded virus:

The virus embeds its own code into infected files, and when the file is infected, killing and removing the virus is very difficult. However, it is difficult to write embedded viruses, so the number of viruses is not very large.

Shell type virus:

The virus attaches its own code to the header or tail of the normal program. The virus is a wide variety of viruses, most of which are infected with files of this type.

Virus Generation Tool:

Usually in the form of a menu, as long as the person with a bit of computer knowledge, the use of virus generation tools can be as easy as a la carte to create computer viruses, and can design a very complex with the theft and polymorphism characteristics of the virus.