mirror of https://github.com/vxunderground/VX-API
26 lines
969 B
C++
26 lines
969 B
C++
#include "Win32Helper.h"
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ULONG XpressHuffMaximumDecompressBuffer(_In_ PBYTE CompressedBuffer, _In_ ULONG SizeOfCompressedBufferInBytes, _Inout_ PBYTE DecompressedBuffer, _In_ ULONG DecompressedBufferSizeInBytes)
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{
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RTLDECOMPRESSBUFFER RtlDecompressBuffer = NULL;
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HMODULE hMod = NULL;
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NTSTATUS Status = STATUS_SUCCESS;
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USHORT CompressionFormatAndEngine = COMPRESSION_FORMAT_XPRESS_HUFF | COMPRESSION_ENGINE_MAXIMUM;
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ULONG FinalDecompressedSize = 0;
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hMod = GetModuleHandleEx2W(L"ntdll.dll");
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if (hMod == NULL)
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goto EXIT_ROUTINE;
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RtlDecompressBuffer = (RTLDECOMPRESSBUFFER)GetProcAddressA((DWORD64)hMod, "RtlDecompressBuffer");
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if (!RtlDecompressBuffer)
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goto EXIT_ROUTINE;
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Status = RtlDecompressBuffer(CompressionFormatAndEngine, DecompressedBuffer, DecompressedBufferSizeInBytes, CompressedBuffer, SizeOfCompressedBufferInBytes, &FinalDecompressedSize);
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if (Status != STATUS_SUCCESS)
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goto EXIT_ROUTINE;
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EXIT_ROUTINE:
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return FinalDecompressedSize;
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} |