public static void RtlInitUnicodeString(ref SpDi.Native.UNICODE_STRING DestinationString, [MarshalAs(UnmanagedType.LPWStr)] string SourceString)
{
object[] funcargs =
{
DestinationString, SourceString
};
Generic.DynamicAPIInvoke(@"ntdll.dll", @"RtlInitUnicodeString", typeof(DELEGATES.RtlInitUnicodeString), ref funcargs);
DestinationString = (SpDi.Native.UNICODE_STRING)funcargs[0];
}
public static IntPtr LoadModuleFromDisk(string DLLPath)
{
SpDi.Native.UNICODE_STRING uModuleName = new SpDi.Native.UNICODE_STRING();
Native.RtlInitUnicodeString(ref uModuleName, DLLPath);
IntPtr hModule = IntPtr.Zero;
SpDi.Native.NTSTATUS CallResult = Native.LdrLoadDll(IntPtr.Zero, 0, ref uModuleName, ref hModule);
if (CallResult != SpDi.Native.NTSTATUS.Success || hModule == IntPtr.Zero)
{
return(IntPtr.Zero);
}
return(hModule);
}
public static string GetFilenameFromMemoryPointer(IntPtr hProc, IntPtr pMem)
{
IntPtr pBase = IntPtr.Zero;
IntPtr RegionSize = (IntPtr)0x500;
IntPtr pAlloc = NtAllocateVirtualMemory(hProc, ref pBase, IntPtr.Zero, ref RegionSize, SpDi.Win32.Kernel32.MEM_COMMIT | SpDi.Win32.Kernel32.MEM_RESERVE, SpDi.Win32.WinNT.PAGE_READWRITE);
SpDi.Native.MEMORYINFOCLASS memoryInfoClass = SpDi.Native.MEMORYINFOCLASS.MemorySectionName;
UInt32 MemoryInformationLength = 0x500;
UInt32 Retlen = 0;
object[] funcargs =
{
hProc, pMem, memoryInfoClass, pAlloc, MemoryInformationLength, Retlen
};
SpDi.Native.NTSTATUS retValue = (SpDi.Native.NTSTATUS)Generic.DynamicAPIInvoke(@"ntdll.dll", @"NtQueryVirtualMemory", typeof(DELEGATES.NtQueryVirtualMemory), ref funcargs);
string FilePath = string.Empty;
if (retValue == SpDi.Native.NTSTATUS.Success)
{
SpDi.Native.UNICODE_STRING sn = (SpDi.Native.UNICODE_STRING)Marshal.PtrToStructure(pAlloc, typeof(SpDi.Native.UNICODE_STRING));
FilePath = Marshal.PtrToStringUni(sn.Buffer);
}
NtFreeVirtualMemory(hProc, ref pAlloc, ref RegionSize, SpDi.Win32.Kernel32.MEM_RELEASE);
if (retValue == SpDi.Native.NTSTATUS.AccessDenied)
{
throw new UnauthorizedAccessException("Access is denied.");
}
if (retValue == SpDi.Native.NTSTATUS.AccessViolation)
{
throw new InvalidOperationException("The specified base address is an invalid virtual address.");
}
if (retValue == SpDi.Native.NTSTATUS.InfoLengthMismatch)
{
throw new InvalidOperationException("The MemoryInformation buffer is larger than MemoryInformationLength.");
}
if (retValue == SpDi.Native.NTSTATUS.InvalidParameter)
{
throw new InvalidOperationException("The specified base address is outside the range of accessible addresses.");
}
return(FilePath);
}
public static PE.PE_MANUAL_MAP MapModuleFromDisk(string DLLPath)
{
if (!File.Exists(DLLPath))
{
throw new InvalidOperationException("Filepath not found.");
}
SpDi.Native.UNICODE_STRING ObjectName = new SpDi.Native.UNICODE_STRING();
SpDi2.Native.RtlInitUnicodeString(ref ObjectName, (@"\??\" + DLLPath));
IntPtr pObjectName = Marshal.AllocHGlobal(Marshal.SizeOf(ObjectName));
Marshal.StructureToPtr(ObjectName, pObjectName, true);
SpDi.Native.OBJECT_ATTRIBUTES objectAttributes = new SpDi.Native.OBJECT_ATTRIBUTES();
objectAttributes.Length = Marshal.SizeOf(objectAttributes);
objectAttributes.ObjectName = pObjectName;
objectAttributes.Attributes = 0x40;
SpDi.Native.IO_STATUS_BLOCK ioStatusBlock = new SpDi.Native.IO_STATUS_BLOCK();
IntPtr hFile = IntPtr.Zero;
SpDi2.Native.NtOpenFile(
ref hFile,
SpDi.Win32.Kernel32.FileAccessFlags.FILE_READ_DATA |
SpDi.Win32.Kernel32.FileAccessFlags.FILE_EXECUTE |
SpDi.Win32.Kernel32.FileAccessFlags.FILE_READ_ATTRIBUTES |
SpDi.Win32.Kernel32.FileAccessFlags.SYNCHRONIZE,
ref objectAttributes, ref ioStatusBlock,
SpDi.Win32.Kernel32.FileShareFlags.FILE_SHARE_READ |
SpDi.Win32.Kernel32.FileShareFlags.FILE_SHARE_DELETE,
SpDi.Win32.Kernel32.FileOpenFlags.FILE_SYNCHRONOUS_IO_NONALERT |
SpDi.Win32.Kernel32.FileOpenFlags.FILE_NON_DIRECTORY_FILE
);
IntPtr hSection = IntPtr.Zero;
ulong MaxSize = 0;
SpDi.Native.NTSTATUS ret = SpDi2.Native.NtCreateSection(
ref hSection,
(UInt32)SpDi.Win32.WinNT.ACCESS_MASK.SECTION_ALL_ACCESS,
IntPtr.Zero,
ref MaxSize,
SpDi.Win32.WinNT.PAGE_READONLY,
SpDi.Win32.WinNT.SEC_IMAGE,
hFile
);
IntPtr pBaseAddress = IntPtr.Zero;
SpDi2.Native.NtMapViewOfSection(
hSection, (IntPtr)(-1), ref pBaseAddress,
IntPtr.Zero, IntPtr.Zero, IntPtr.Zero,
ref MaxSize, 0x2, 0x0,
SpDi.Win32.WinNT.PAGE_READWRITE
);
PE.PE_MANUAL_MAP SecMapObject = new PE.PE_MANUAL_MAP
{
PEINFO = SpDi2.Generic.GetPeMetaData(pBaseAddress),
ModuleBase = pBaseAddress
};
return(SecMapObject);
}
public static SpDi.Native.NTSTATUS LdrLoadDll(IntPtr PathToFile, UInt32 dwFlags, ref SpDi.Native.UNICODE_STRING ModuleFileName, ref IntPtr ModuleHandle)
{
object[] funcargs =
{
PathToFile, dwFlags, ModuleFileName, ModuleHandle
};
SpDi.Native.NTSTATUS retValue = (SpDi.Native.NTSTATUS)Generic.DynamicAPIInvoke(@"ntdll.dll", @"LdrLoadDll", typeof(DELEGATES.LdrLoadDll), ref funcargs);
ModuleHandle = (IntPtr)funcargs[3];
return(retValue);
}
