MJ0011 - Windows 10 Control Flow Guard Internals

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Add CFG Exception • CFG allows user process to add some exceptions for compatibility • Kernelbase!SetProcessValidCallTargets • It will call NtSetInformationVirtualMemory-> MiCfgMarkValidEntries to add valid call bits into bitmap
How CFG Works: Kernel Mode Part • CFG Initialization in Booting Process • CFG Bitmap Mapping in Process Creation Process • CFG Bitmap Building in Image Loading Process • Shared Bitmap VS. Private Bitmap
Page 1 and 2: Windows 10 Control Flow Guard Inter
Page 3 and 4: Intro to Control Flow Guard • New
Page 5 and 6: Control Flow Guard • CFG will pre
Page 7 and 8: New Load Config Structure • New l
Page 9 and 10: Call Target Validation Logics • L
Page 15: Unmapped Bitmap Processing • RtlD
Page 19 and 20: Process Creation Process • PspApp
Page 21 and 22: Shared Bitmap VS. Private Bitmap
Page 23 and 24: Stack Address • If we know thread
Page 25 and 26: Unaligned Guard Functions • Did e
Page 27 and 28: Fixed Kernel Address • Starting f
Page 29 and 30: Acknowledgement • Yuki Chen • V

MJ0011 - Windows 10 Control Flow Guard Internals

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