32位程序读写64位程序内存

　　32位程序可以通过NtWow64ReadVirtualMemory64，NtWow64WriteVirtualMemory64读写64程序内存。

　　步骤：

　　1.自定义函数参数结构，获取模块中的函数指针：

typedef NTSTATUS(NTAPI *LPFN_NTWOW64READVIRTUALMEMORY64)(
IN  HANDLE   ProcessHandle,
IN  ULONG64  BaseAddress,
OUT PVOID    BufferData,
IN  ULONG64  BufferLength,
OUT PULONG64 ReturnLength OPTIONAL);


typedef NTSTATUS(NTAPI *LPFN_NTWOW64WRITEVIRTUALMEMORY64)(
IN  HANDLE   ProcessHandle,
IN  ULONG64  BaseAddress,
OUT PVOID    BufferData,
IN  ULONG64  BufferLength,
OUT PULONG64 ReturnLength OPTIONAL);


NtdllModuleBase = GetModuleHandle(L"Ntdll.dll");
if (NtdllModuleBase == NULL)
{
return FALSE;
}

__NtWow64ReadVirtualMemory64 = (LPFN_NTWOW64READVIRTUALMEMORY64)GetProcAddress(NtdllModuleBase,
"NtWow64ReadVirtualMemory64");

__NtWow64WriteVirtualMemory64 = (LPFN_NTWOW64WRITEVIRTUALMEMORY64)GetProcAddress(NtdllModuleBase,
"NtWow64WriteVirtualMemory64");

　　2.获取进程ID和64进程中想要读写处的地址，调用函数读写目标进程内存

NTSTATUS Status = __NtWow64ReadVirtualMemory64(ProcessHandle,
BaseAddress, BufferData, BufferLength, &ReturnLength);
if (NT_SUCCESS(Status))
{
printf("%s\r\n", BufferData);
ZeroMemory(BufferData, BufferLength);
memcpy(BufferData, "LIUDADA", strlen("LIUDADA"));
__NtWow64WriteVirtualMemory64(ProcessHandle,
BaseAddress, BufferData,  strlen("LIUDADA")+1, (PULONG64)&ReturnLength);

}