Abstract
To guarantee the network computing system security, the effective method is illegal or malicious software detection. Most of the former researches implement it on OS kernel or hypervisor level. However, if the system is attacked by the ring 0 or ring 1 level risks, the OS kernel or hypervisor is unable to provide the trusted base, which may cause an incorrect result. To solve the shortcomings, we choose the System Management Mode (SMM) to build a trusted execution environment. The SMM is a special cpu mode in the x86 architecture, which could create a security and isolated area on firmware level for malicious attacks detection.
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