虚拟机自省中一种消除语义鸿沟的方法

doi:10.11959/j.issn.1000-436x.2015103

通信学报 ›› 2015, Vol. 36 ›› Issue (8): 31-37.doi: 10.11959/j.issn.1000-436x.2015103

虚拟机自省中一种消除语义鸿沟的方法

崔超远¹,乌云²,李平^1,³,张晓明¹

¹ 中国科学院合肥智能机械研究所，安徽合肥 230031
² 中国科学院安徽循环经济技术工程院，安徽合肥 230088
³ 中国科学技术大学自动化系，安徽合肥 230027

出版日期:2015-08-25 发布日期:2015-08-25
基金资助:
中国科学院合肥物质科学研究院院长基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目

Narrowing the semantic gap in virtual machine introspection

Chao-yuan CUI¹,Yun WU²,Ping LI^1,³,Xiao-ming ZHANG¹

¹ Institute of Intelligent Machines,CAS,Hefei 230031,China
² Anhui Technology and Engineering Institute for Recycling Economy,CAS,Hefei 230088,China
³ Department of Automation,University of Science and Technology of China,Hefei 230027，China

Online:2015-08-25 Published:2015-08-25
Supported by:
Foundation of President of Hefei Institutes of Physical Science,Chinese Academy of Sciences;The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要/Abstract

摘要：

虚拟机自省技术已经广泛应用于入侵检测和恶意软件分析等领域。但是由于语义鸿沟的存在，获取虚拟机内部信息时会导致其通用性和执行效率降低。通过分析现有语义鸿沟修复技术的不足，提出了一种称为ModSG的语义鸿沟消除方法。ModSG 是一个模块化系统，将语义修复分为 2 部分：与用户直接交互的在线语义视图构建和与操作系统知识交互的离线高级语义解析。二者以独立的模块实现且后者为前者提供语义重构时必要的内核语义信息。针对不同虚拟机状态和不同内核版本操作系统的实验表明，ModSG 在消除语义鸿沟上是准确和高效的。模块化设计和部署也使ModSG容易扩展到其他操作系统和虚拟化平台上。

关键词: 语义鸿沟, 虚拟机自省, 模块化系统, 可移植性

Abstract:

Virtual machine introspection(VMI)has been widely used in areas such as intrusion detection and malware analysis.However,due to the existence of semantic gap,the generality and the efficiency of VMI were partly influenced while getting internal information of a virtual machine.By analyzing the deficiencies of existing technology of semantic gap restoration,a method called ModSG was proposed to bridge the semantic gap.ModSG was a modularity system,it divided semantic restoration into two parts.One was online phase that interact directly with user to construct semantic views,the other was offline phase that only interact with operating system to parse high-level semantic knowledge.Both were implemented via independent module,and the latter provided the former with necessary kernel information during semantic view construction.Experiments on different virtual machine states and different kernel versions show that the ModSG is accurate and efficient in narrowing semantic gap.The modular design and deployment also make ModSG easily to be extended to other operating systems and virtualization platforms.

Key words: semantic gap, virtual machine introspection, modularity system, portability

崔超远,乌云,李平,张晓明. 虚拟机自省中一种消除语义鸿沟的方法[J]. 通信学报, 2015, 36(8): 31-37.

Chao-yuan CUI,Yun WU,Ping LI,Xiao-ming ZHANG. Narrowing the semantic gap in virtual machine introspection[J]. Journal on Communications, 2015, 36(8): 31-37.

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虚拟域	CPU	内存	OS	内核
Dom0	4核	4 GB	Ubuntu12.04	3.2.0
Dom1	1核	1 GB	Ubuntu12.04	3.2.0
Dom2	1核	1 GB	CentOS6.4	2.6.32
Dom3	1核	1 GB	Debian7.3.0	3.2.0
Dom4	1核	1 GB	Fedora18	3.6.10

虚拟机自省中一种消除语义鸿沟的方法

Narrowing the semantic gap in virtual machine introspection

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