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基于本地虚拟化技术的隐藏进程检测

温研 赵金晶 王怀民   

  1. 国防科学技术大学 北京系统工程研究所 国防科学技术大学
  • 收稿日期:2008-01-03 修回日期:2008-03-24 发布日期:2008-07-01 出版日期:2008-07-01
  • 通讯作者: 温研

Detecting hidden process with local virtualization technology

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  • Received:2008-01-03 Revised:2008-03-24 Online:2008-07-01 Published:2008-07-01
  • Contact: WEN Yan

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摘要： 自隐藏恶意代码已成为PC平台下急需解决的安全问题，进程隐藏则是这类恶意代码最常用和最基本的规避检测的自隐藏技术。针对这个问题，提出了一种新的基于本地虚拟化技术的隐藏进程检测技术——Gemini。基于该本地虚拟化技术，Gemini在本地化启动的虚拟机中（Local-Booted Virtual Machine)完整重现了宿主操作系统的运行环境，结合隐式的真实进程列表（TVPL)获取技术，Gemini实现了在虚拟机监视器（VMM)内检测宿主操作系统内隐藏进程的能力。测试结果证明了宿主计算环境重现的有效性与隐藏进程检测的完整性。

关键词: 虚拟机监视器, 虚拟机, 自隐藏恶意代码, 本地虚拟化技术, 进程隐藏

Abstract: Currently stealth malware is becoming a major threat to the PC computers. Process hiding is the technique commonly used by stealth malware to evade detection by anti-malware scanners. In this paper, we presented a new VM-based approach called Gemini that accurately reproduced the software environment of the underlying preinstalled OS within the Gemini VM. With our new local-booting technology, Gemini VM just booted from the underlying host OS but not a newly installed OS image. In addition, Gemini adopted a unique technique to implicitly construct the Trusted View of Process List (TVPL) from within the virtualized hardware layer. Thus, Gemini provided a way to detect the existing process-hiding stealth malware in the host OS. Our evaluation results with real-world hiding-process rootkits, which are widely used by stealth malware, demonstrate its practicality and effectiveness.

Key words: virtual machine monitor (VMM), virtual machine (VM), stealth malware, local virtualization, process hiding

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