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Windows Handle

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  1. Windows Handle somma_at_vmcraft_dot_com VMCraft inc., Ltd. 2008. 11. 15

  2. Contents Windows kernel architecture Object ? Handle table Reversing the PspCidTable Exploit #1 Exploit #2

  3. Applications Subsystem servers DLLs System Services Login/GINA Kernel32 Critical services User32 / GDI ntdll / run-time library User-mode Kernel-mode Trap interface / LPC Security refmon IO Manager Virtual memory Procs & threads Win32 GUI File filters Scheduler FS run-time File systems Volume mgrs Cache mgr exec synchr Device stacks Object Manager / Configuration Management Kernel run-time / Hardware Adaptation Layer Windows kernel architecture

  4. Object ?

  5. Object structure

  6. DEMO - Digging windows object

  7. HANDLE ?

  8. Handle table

  9. Handle table structure

  10. Handle table structure

  11. Reversing the PspCidTable Handle table contains every Process and Thread object.

  12. DEMO - Reversing windows kernel

  13. Exploit #1 OpenProcess() trick

  14. Exploit #2 process hiding

  15. Q & A

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