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Old 01-24-2006, 21:56
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-Hide NtGlobalFlag, -Hide ProcessHeapFlag
On XP+ simply add _NO_DEBUG_HEAP=1 to sytem enviroment

-Patch ZwQueryInformationProcess
If second parameter is ProcessDebugPort (7), execute original API, then simply put zero at adress, extracted from thrid parameter.

-ZwSetInformationThread
If second parameter is HideFromDebugger (11h) simply return with stack correction and zero in eax

-Patch CheckRemoteDebuggerPresen
No need to patch coz it uses ZwQueryInformationProcess do detect debugger
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