ATTACKING WINDOWS BY WINDOWS

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How to exploit? Q1: Where to write? Q2: What to write? Q3: What can we do now?
Old days.. Q1: Where to write? • nt!HalDispatchTable Q2: What to write? • Userland shellcode address Q3: What can we do now? ring3 XXX.exe ntdll!NtQueryIntervalProfile ring0 ntoskrnl.exe nt!NtQueryIntervalProfile XXX!Shellcode nt!HalDispatchTable
Page 1 and 2: ATTACKING WINDOWS BY WINDOWS Yin Li
Page 3 and 4: About us Team member: • xin, godz
Page 5: • 46 acknowledgments!
Page 9 and 10: Where to write?
Page 11 and 12: What to write?
Page 13 and 14: Window Extra Data • Two APIs: LON
Page 15 and 16: If we change a bit… • Bin: 1000
Page 17 and 18: Read from anywhere • Two APIs: LO
Page 19 and 20: Steal SYSTEM Token My Window (tagWN
Page 21 and 22: Pwn2Own 2016 Flash
Page 23 and 24: How to exploit 0 → 1 Q1: Where to
Page 25 and 26: The Function - CVE-2016-3355 DWORD
Page 27 and 28: My Exploit 1Create memory font 2Cre
Page 29 and 30: The Refcount! • Win32k object: 1:
Page 31 and 32: Make a Use-After-Free • API: BOOL
Page 33 and 34: Fake tagMENU Window Text (Fake tagM
Page 35 and 36: Let`s rule them all!
Page 37 and 38: Summary All Windows OS Trigger one

ATTACKING WINDOWS BY WINDOWS

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