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A new class of stealthy kernel-level malware, called transient kernel control flow attacks, uses dynamic soft timers to achieve significant work while avoiding any persistent changes to kernel code or data. We demonstrate that soft timers can be used to implement attacks such as a stealthy key logger and a CPU cycle stealer. To defend against these attacks, we propose an approach based on static analysis...
Host-based security tools such as anti-virus and intrusion detection systems are not adequately protected on today's computers. Malware is often designed to immediately disable any security tools upon installation, rendering them useless. While current research has focused on moving these vulnerable security tools into an isolated virtual machine, this approach cripples security tools by preventing...
Researchers have studied usable computer security for more than 20 years, and developers have created numerous security interfaces. Here, the authors examine research in this space, starting with a historical look at papers that address two consistent problems: user authentication and email encryption. Drawing from successes and failures within these areas, they study several security systems to determine...
The monitoring of virtual machines has many applications in areas such as security and systems management. A monitoring technique known as introspection has received significant discussion in the research literature, but these prior works have focused on the applications of introspection rather than how to properly build a monitoring architecture. In this paper we propose a set of requirements that...
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