| A New Definition of Virus |
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| 作者姓名： | HE Hongjun CAO Sihua LUO Li FENG Tao PAN Li ZOU Zhiji |
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| 作者单位： | School of Computer, National University of Defense Technology, Changsha 410073, Hunan, China |
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| 基金项目： | Supported by the Foundation of National Laboratory for Modern Communications（51436050505KG0101） |
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| 摘 要： | Security experts have not formally defined the distinction between viruses and normal programs. The paper takes user＇s intension as the criteria for malice, gives a formal definition of viruses that aim at stealing or destroying files, and proposes an algorithm to detect virus correctly. Compared with traditional definitions, this new definition is easy to understand, covers more malwares, adapts development of virus technology, and defines virus on the spot. The paper has also analyzed more than 250 real viruses and finds that they are all in the domain of the new definition, this implies that the new definition has great practical significance.
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| 关 键 词： | 病毒 用户意图 文件 信息安全 |
| 文章编号： | 1007-1202（2006）06-1697-04 |
| 收稿时间： | 2006-04-26 |
A new definition of virus |
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| HE Hongjun CAO Sihua LUO Li FENG Tao PAN Li ZOU Zhiji.A New Definition of Virus[J].Wuhan University Journal of Natural Sciences,2006,11(6):1697-1700. |
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| Authors: | He Hongjun Cao Sihua Luo Li Feng Tao Pan Li Zou Zhiji |
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| Institution: | (1) School of Computer, National University of Defense Technology, 410073 Changsha, Hunan, China |
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| Abstract: | Security experts have not formally defined the distinction between viruses and normal programs. The paper takes user's intension as the criteria for malice, gives a formal definition of viruses that aim at stealing or destroying files, and proposes an algorithm to detect virus correctly. Compared with traditional definitions, this new definition is easy to understand, covers more malwares, adapts development of virus technology, and defines virus on the spot. The paper has also analyzed more than 250 real viruses and finds that they are all in the domain of the new definition, this implies that the new definition has great practical significance. |
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| Keywords: | virus definition of virus intention of user file-attacking virus |
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