hGuard: A Framework to Measure Hypervisor Critical Files

ISCAS OpenIR

	hGuard: A Framework to Measure Hypervisor Critical Files
	Ding, Baozeng; He, Yeping; Zhou, Qiming; Wu, Yanjun; Wu, Jingzheng
	2013
会议名称	7th IEEE International Conference on Software Security and Reliability (SERE)
页码	177-182
会议日期	JUN 18-20, 2013
会议地点	Gaithersburg, MD
收录类别	CPCI
出版地	IEEE COMPUTER SOC
ISBN	978-0-7695-5030-5
部门归属	[Ding, Baozeng; He, Yeping; Zhou, Qiming; Wu, Yanjun; Wu, Jingzheng] Chinese Acad Sci, Inst Software, Beijing 100864, Peoples R China.
摘要	Virtualization has been widely adopted in current computer systems. A key part of virtualization is a hypervisor, which virtualizes physical resources to be shared among multiple guest virtual machines (VMs). Configuration files and security policy files used by the hypervisor control VMs' behavior. If these critical files are tampered with, all the VMs that run on the same hypervisor will be affected. This paper presents hGuard, a framework to measure hypervisor critical files. Each time a critical file is updated, its hash is stored into a non-volatile storage of the trusted chip. When a critical file is loaded into memory, a measurement module computes its hash and a validation module checks its integrity by comparing this hash with that stored in the non-volatile storage. Only if they are the same could the files be used and continuous operation will be allowed. The experiment shows that hGuard can detect illegal modification of hypervisor critical files.; Virtualization has been widely adopted in current computer systems. A key part of virtualization is a hypervisor, which virtualizes physical resources to be shared among multiple guest virtual machines (VMs). Configuration files and security policy files used by the hypervisor control VMs' behavior. If these critical files are tampered with, all the VMs that run on the same hypervisor will be affected. This paper presents hGuard, a framework to measure hypervisor critical files. Each time a critical file is updated, its hash is stored into a non-volatile storage of the trusted chip. When a critical file is loaded into memory, a measurement module computes its hash and a validation module checks its integrity by comparing this hash with that stored in the non-volatile storage. Only if they are the same could the files be used and continuous operation will be allowed. The experiment shows that hGuard can detect illegal modification of hypervisor critical files.
关键词	Hypervisor Critical Files Integrity Measurement
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16532
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Ding, Baozeng,He, Yeping,Zhou, Qiming,et al. hGuard: A Framework to Measure Hypervisor Critical Files[C]. IEEE COMPUTER SOC,2013:177-182.