A Virus Detection Framework based on SPMOS

2008 International Conference on Embedded Software and Systems Pub Date : 2008-07-29 DOI:10.1109/ICESS.2008.93

Tianzhou Chen, Jijun Ma, N. Zhang, Qingsong Shi

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引用次数: 1

Abstract

Embedded systems have been used in many different areas in which sensitive information communication and storage are needed. This makes security a serious concern in embedded system design, especially in operating system design. At the same time computer virus has been mutating and developing as fast as the upgrading speed of embedded operating system. Even it is possible for some intelligent virus to destroy the anti-virus software process in the memory. The system-on-a-chip technology provides Scratch-Pad Memory(SPM) which is physically isolated with main memory and more efficient than other kind of memories. We construct a demilitarized zone(DMZ) on SPM and design a small OS named SPMOS in the DMZ. A watchdog is contained in GPOS to monitor the events occurred. If an abnormal event is detected, GPOS will trap itself to SPMOS which will invoke anti-virus program. It is a big challenge to switch the two OSes without any virtual layer support. The way to protect SPM showed that the anti-virus detection platform based on SPMOS is secure. Then the experiment results show that the platform is efficient while switching between OSes.

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基于SPMOS的病毒检测框架

嵌入式系统已经应用于许多需要敏感信息通信和存储的不同领域。这使得安全性成为嵌入式系统设计，尤其是操作系统设计中需要认真考虑的问题。与此同时，计算机病毒也随着嵌入式操作系统的升级速度而不断变异和发展。甚至一些智能病毒也有可能破坏内存中的杀毒软件进程。片上系统技术提供了与主存储器物理隔离的刮擦板存储器(SPM)，比其他类型的存储器效率更高。我们在SPM上构造了一个非军事区(DMZ)，并在非军事区设计了一个名为SPMOS的小型操作系统。GPOS中包含一个看门狗，用来监视发生的事件。如果检测到异常事件，GPOS将自己捕获到SPMOS, SPMOS将调用杀毒程序。在没有任何虚拟层支持的情况下切换两个操作系统是一个很大的挑战。对SPMOS的保护表明，基于SPMOS的防病毒检测平台是安全的。实验结果表明，该平台在操作系统之间的切换是高效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2008 International Conference on Embedded Software and Systems

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