This chapter introduces you to the bootkit, a malicious program that infects the early stages of the system startup process, before the operating system is fully loaded. Bootkits have made an impressive comeback after their use diminished due to changes in the PC boot process. Modern bootkits use variations on old stealth and persistence approaches from these early bootkits to remain active on a target system for as long as possible without the system user’s knowledge.

In this chapter, we take a look at the earliest bootkits; trace the fluctuating popularity of bootkits, including their spectacular comeback in recent ...

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