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Virtual machine (VM) introspection is a powerful technique for determining the specific aspects of guest VM execution from outside the VM. Unfortunately, existing introspection solutions share a common questionable assumption. This assumption is embodied in the expectation that original kernel data structures are respected by the untrusted guest and thus(More)
Targeting the operating system (OS) kernels, kernel rootkits pose a formidable threat to computer systems and their users. Recent efforts have made significant progress in blocking them from injecting malicious code into the OS kernel for execution. Unfortunately, they cannot block the emerging so-called return-oriented rootkits (RORs). Without the need of(More)
—Protecting kernel control data (e.g., function pointers and return addresses) has been a serious issue plaguing rootkit defenders. In particular, rootkit authors only need to compromise one piece of control data to launch their attacks, while defenders need to protect thousands of such values widely scattered across kernel memory space. Worse, some of this(More)
Kernel rootkits are among the most insidious threats to computer security today. By employing various code injection techniques, they are able to maintain an omnipotent presence in the compromised OS kernels. Existing preventive countermeasures typically employ virtualization technology as part of their solutions. However, they are still limited in either(More)
Leucine-rich α2 glycoprotein 1 (LRG1) has been shown to be aberrantly expressed in multiple human malignancies. However, the biological functions of LRG1 in human glioblastoma remain unknown. Here, we report for the first time the role of LRG1 in glioblastoma development based on the preliminary in vitro and in vivo data. We first confirmed the expression(More)
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