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APPENDIX A
The Bootup Process
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The Windows Bootup Process
To better understand how malware autostarts in Windows, let’s take a quick look at how Windows boots up. Depending on whether the system is BIOS-based or EFI-based, the bootup process differs up to the point of passing control to the kernel (see Figure A-1).
Figure A-1 A simplistic view of the bootup process
BIOS-Based system
On a BIOS-based system, the bootup process begins with the BIOS. The BIOS code selects a boot device and loads that device’s Master Boot Record (MBR) into memory. ...
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