154 lines
3.5 KiB
C++
154 lines
3.5 KiB
C++
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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Win2000VersionLie.cpp
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Abstract:
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This DLL hooks GetVersion and GetVersionEx so that they return Windows 2000
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version credentials.
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Notes:
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This is a general purpose shim.
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History:
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03/13/2000 clupu Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(Win2000VersionLie)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetVersionExA)
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APIHOOK_ENUM_ENTRY(GetVersionExW)
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APIHOOK_ENUM_ENTRY(GetVersion)
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APIHOOK_ENUM_END
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/*++
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This stub function fixes up the OSVERSIONINFO structure that is
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returned to the caller with Windows 95 credentials.
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--*/
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BOOL
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APIHOOK(GetVersionExA)(
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OUT LPOSVERSIONINFOA lpVersionInformation
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)
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{
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BOOL bReturn = FALSE;
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if (ORIGINAL_API(GetVersionExA)(lpVersionInformation)) {
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LOGN(
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eDbgLevelInfo,
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"[GetVersionExA] called. return Win2k.");
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//
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// Fixup the structure with the Win2k data.
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//
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lpVersionInformation->dwMajorVersion = 5;
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lpVersionInformation->dwMinorVersion = 0;
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lpVersionInformation->dwBuildNumber = 2195;
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lpVersionInformation->dwPlatformId = VER_PLATFORM_WIN32_NT;
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*lpVersionInformation->szCSDVersion = '\0';
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if( lpVersionInformation->dwOSVersionInfoSize == sizeof(OSVERSIONINFOEXA) )
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{
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// We are here as we are passed a OSVERSIONINFOEX structure.
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// Set the major and minor service pack numbers.
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((LPOSVERSIONINFOEXA)lpVersionInformation)->wServicePackMajor = 0;
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((LPOSVERSIONINFOEXA)lpVersionInformation)->wServicePackMinor = 0;
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}
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bReturn = TRUE;
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}
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return bReturn;
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}
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/*++
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This stub function fixes up the OSVERSIONINFO structure that is
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returned to the caller with Windows 95 credentials. This is the
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wide-character version of GetVersionExW.
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--*/
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BOOL
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APIHOOK(GetVersionExW)(
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OUT LPOSVERSIONINFOW lpVersionInformation
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)
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{
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BOOL bReturn = FALSE;
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if (ORIGINAL_API(GetVersionExW)(lpVersionInformation)) {
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LOGN(
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eDbgLevelInfo,
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"[GetVersionExW] called. return Win2k.");
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//
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// Fixup the structure with the Win2k data.
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//
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lpVersionInformation->dwMajorVersion = 5;
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lpVersionInformation->dwMinorVersion = 0;
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lpVersionInformation->dwBuildNumber = 2195;
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lpVersionInformation->dwPlatformId = VER_PLATFORM_WIN32_NT;
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*lpVersionInformation->szCSDVersion = L'\0';
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if( lpVersionInformation->dwOSVersionInfoSize == sizeof(OSVERSIONINFOEXW) )
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{
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// We are here as we are passed a OSVERSIONINFOEX structure.
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// Set the major and minor service pack numbers.
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((LPOSVERSIONINFOEXW)lpVersionInformation)->wServicePackMajor = 0;
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((LPOSVERSIONINFOEXW)lpVersionInformation)->wServicePackMinor = 0;
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}
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bReturn = TRUE;
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}
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return bReturn;
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}
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/*++
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This stub function returns Windows 95 credentials.
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--*/
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DWORD
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APIHOOK(GetVersion)(
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void
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)
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{
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LOGN(
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eDbgLevelInfo,
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"[GetVersion] called. return Win2k.");
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return (DWORD)0x08930005;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(KERNEL32.DLL, GetVersionExA)
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APIHOOK_ENTRY(KERNEL32.DLL, GetVersionExW)
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APIHOOK_ENTRY(KERNEL32.DLL, GetVersion)
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HOOK_END
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IMPLEMENT_SHIM_END
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