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Method and device for preventing computer virus

A computer virus and virus technology, applied in the field of preventing computer viruses, can solve problems such as economic losses, inability to prevent new viruses, system paralysis, etc., and achieve a good protective effect

Inactive Publication Date: 2005-02-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that this method always lags behind the emergence of new viruses, and cannot find new viruses that have not yet taken place in normal programs or data files, and cannot prevent new viruses. When the attack condition is met, it will cause damage to the computer system, affecting the normal operation of the system at the slightest, and causing the system to be paralyzed or even destroying the hardware of the system, causing serious economic losses.

Method used

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  • Method and device for preventing computer virus
  • Method and device for preventing computer virus
  • Method and device for preventing computer virus

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Embodiment Construction

[0036] In order to make those skilled in the art better understand the present invention, the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0037] Since the virus that spreads by infecting the executable program must parasitize itself in the program file of the executable program, the corresponding checksum file is generated for the executable program file before being infected with the virus, and then verified when the program is executed , comparison, it can be found whether it is infected by the virus, thereby controlling and preventing the outbreak of the virus.

[0038] refer to figure 1 , figure 1 Flowchart depicting the steps of a method of preventing computer viruses in a preferred embodiment of the present invention:

[0039] First, in step 10, before the system runs, use a predetermined algorithm to generate a checksum file for the program file of the application program that needs to be execu...

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Abstract

The present invention provides a method for preventing computer virus. Said method includes the following steps: creating original information file containing appliction program file information which is not infected by virus; when said application programfile makes a request for operation, extracting information of said application program file to generate new information file; comparing new information file with old information file, according to compared result controlling operation of said application program file. Said invention also provides a device for implementing said method, and said device includes control device, detection device and information generation device.

Description

technical field [0001] The invention relates to computer virus prevention technology, in particular to a method and device for preventing computer viruses. Background technique [0002] With the development of computer technology, there are more and more types and hazards of computer viruses, which cause hardware damage, data loss, or abnormal use, etc., which have brought great impact and losses to computer users. Computer viruses are highly contagious and contagious, and are mainly spread through the network or by infecting executable programs in computers. At present, antivirus software is mostly used to scan and kill computer viruses. Antivirus software generally consists of a virus inspection engine (Scan Engine) and a virus signature database (Virus Definition). The virus checking engine checks the computer files according to the virus signature codes in the virus signature database, and checks the files under computer coordination. If a corresponding signature code i...

Claims

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Application Information

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IPC IPC(8): G06F11/00G06F11/08
Inventor 李刚夏泉源
Owner HUAWEI TECH CO LTD
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