Virus scanning method and scanning system
A virus scanning and virus technology, applied in the field of virus scanning methods and scanning systems, can solve problems such as potential safety hazards of virus databases, inability to guarantee computer system security, and impact on computer system security, so as to avoid damage or tampering, improve security, and ensure safety effect
Active Publication Date: 2013-02-06
NATIONZ TECH INC
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Problems solved by technology
It can be seen that the prior art cannot well guarantee that the virus database also has certain potential safety hazards, which will indirectly affect the security of the computer system.
For example, if a malicious program or a Trojan tampers with the virus signature information in the virus database, the antivirus software cannot recognize the malicious program or Trojan at all when scanning the content to be detected, so that the virus cannot be effectively checked and killed, and then the virus cannot be detected. computer system security cannot be guaranteed
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[0032] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0033] In the existing anti-virus technology, since the virus library is stored in the directory where the anti-virus software is located or in the local disk of the computer, any program under the operating system does not need any security certification when accessing the virus library, so that malicious programs or Trojans can also access virus database. Then when a malicious program or a Trojan horse accesses the virus database, if the virus signature information in the virus database is tampered with, the malicious program or Trojan horse can effectively evade scanning and killing by the antivirus software. In this way, the security of the computer cannot be well guaranteed. Therefore, it is necessary to improve the virus detection and killing capabilities of the existing antivirus software.
[0034] In order to improve the ...
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The invention discloses a virus scanning method and a virus scanning system. The method comprises the following steps of: reading a virus database stored in a protection region of a disk by a protective interface, and acquiring virus characteristic information in the virus database; scanning content to be detected, and comparing the content to be detected with a virus characteristic code; and judging whether the content to be detected is infected with virus or not according to a comparison result. By applying the technical scheme disclosed by the invention, the content to be detected which is infected with the virus can be accurately detected, the phenomenon of leak finding of the content to be detected which is infected with the virus already caused by tampering the virus characteristic code can be prevented, so that subsequent virus killing can be performed better, and the safety of a computer system is further improved.
Description
technical field [0001] The present invention relates to the field of computer security, in particular to a virus scanning method and a scanning system. Background technique [0002] Any antivirus software judges whether a file is a virus or whether it has been infected with a virus based on the characteristics of the virus, and the characteristics of these viruses will be recorded in a file, which is the virus database. [0003] The virus database records various "appearance characteristics" of computer viruses. Sometimes we also call the data in the virus database "virus signature information" or "virus signature file". In other words, a virus database is a database in which virus signatures are recorded. Antivirus software can judge whether the content to be detected is a virus file or a normal file by comparing the content to be detected with the "virus characteristic information" in the virus database. It can be seen that the "virus signature information" recorded in t...
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IPC IPC(8): G06F21/56
Inventor 王正鹏朱贺新艾俊王东
Owner NATIONZ TECH INC