private static bool doCreateRemoteThread(Process pToBeInjected, string sDllPath, out string sError, out IntPtr hwnd)
{
try
{
sError = "";
IntPtr hProcess = WINAPI.OpenProcess(0x43a, 1, (uint)pToBeInjected.Id);
hwnd = hProcess;
if (hProcess == IntPtr.Zero)
{
Console.WriteLine("Error: dCRT Code: " + Marshal.GetLastWin32Error());
return(false);
}
IntPtr procAddress = WINAPI.GetProcAddress(WINAPI.GetModuleHandle("kernel32.dll"), "LoadLibraryA");
if (procAddress == IntPtr.Zero)
{
Console.WriteLine("Unable to find address of \"LoadLibraryA\".\n");
Console.WriteLine("Error code: " + Marshal.GetLastWin32Error());
return(false);
}
IntPtr lpBaseAddress = WINAPI.VirtualAllocEx(hProcess, IntPtr.Zero, (IntPtr)sDllPath.Length, 0x3000, 0x40);
if ((lpBaseAddress == IntPtr.Zero) && (lpBaseAddress == IntPtr.Zero))
{
Console.WriteLine("Unable to allocate memory to target process.\n");
Console.WriteLine("Error code: " + Marshal.GetLastWin32Error());
return(false);
}
byte[] byteLength = GetByteLength(sDllPath);
IntPtr zero = IntPtr.Zero;
WINAPI.WriteProcessMemory(hProcess, lpBaseAddress, byteLength, (uint)byteLength.Length, out zero);
//if (Marshal.GetLastWin32Error() != 0)
//{
// sError = "Unable to write memory to process.";
// sError = sError + "Error code: " + Marshal.GetLastWin32Error();
// return false;
//}
if (WINAPI.CreateRemoteThread(hProcess, IntPtr.Zero, IntPtr.Zero, procAddress, lpBaseAddress, 0, IntPtr.Zero) == IntPtr.Zero)
{
Console.WriteLine("Memoryspace Error on LOAD_DLL\n");
Console.WriteLine("Error code: " + Marshal.GetLastWin32Error());
return(false);
}
WINAPI.VirtualFreeEx(hProcess, IntPtr.Zero, UIntPtr.Zero, 0x8000);
return(true);
}
catch (Exception exception)
{
sError = "";
hwnd = IntPtr.Zero;
Console.WriteLine(exception.ToString());
return(false);
}
}
private static bool CRT(
Process pToBeInjected,
string sDllPath,
out string sError,
out IntPtr hwnd)
{
sError = String.Empty; //in case we encounter no errors
IntPtr hndProc = WINAPI.OpenProcess(
(0x2 | 0x8 | 0x10 | 0x20 | 0x400), //create thread, query info, operation
//write, and read
1,
(uint)pToBeInjected.Id);
hwnd = hndProc;
if (hndProc == (IntPtr)0)
{
sError = "Unable to attatch to process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr lpLLAddress = WINAPI.GetProcAddress(
WINAPI.GetModuleHandle("kernel32.dll"),
"LoadLibraryA");
if (lpLLAddress == (IntPtr)0)
{
sError = "Unable to find address of \"LoadLibraryA\".\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr lpAddress = WINAPI.VirtualAllocEx(
hndProc,
(IntPtr)null,
(IntPtr)sDllPath.Length, //520 bytes should be enough
(uint)WINAPI.VAE_Enums.AllocationType.MEM_COMMIT |
(uint)WINAPI.VAE_Enums.AllocationType.MEM_RESERVE,
(uint)WINAPI.VAE_Enums.ProtectionConstants.PAGE_EXECUTE_READWRITE);
if (lpAddress == (IntPtr)0)
{
if (lpAddress == (IntPtr)0)
{
sError = "Unable to allocate memory to target process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
}
byte[] bytes = CalcBytes(sDllPath);
IntPtr ipTmp = IntPtr.Zero;
WINAPI.WriteProcessMemory(
hndProc,
lpAddress,
bytes,
(uint)bytes.Length,
out ipTmp);
if (Marshal.GetLastWin32Error() != 0)
{
sError = "Unable to write memory to process.";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr ipThread = WINAPI.CreateRemoteThread(
hndProc,
(IntPtr)null,
(IntPtr)0,
lpLLAddress,
lpAddress,
0,
(IntPtr)null);
if (ipThread == (IntPtr)0)
{
sError = "Unable to load dll into memory.";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
return(true);
}
private static bool CRT(
Process pToBeInjected,
string sDllPath,
out string sError,
out IntPtr hwnd)
{
sError = String.Empty; //in case we encounter no errors
IntPtr hndProc = WINAPI.OpenProcess((0x2 | 0x8 | 0x10 | 0x20 | 0x400), 1, (uint)pToBeInjected.Id);
hwnd = hndProc;
if (hndProc == (IntPtr)0)
{
sError = "Unable to attatch to process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr lpLLAddress = WINAPI.GetProcAddress(
WINAPI.GetModuleHandle("kernel32.dll"),
"LoadLibraryA");
if (lpLLAddress == (IntPtr)0)
{
sError = "Unable to find address of \"LoadLibraryA\".\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr lpAddress = WINAPI.VirtualAllocEx(
hndProc,
(IntPtr)null,
(IntPtr)sDllPath.Length,
//520 bytes should be enough
(uint)WINAPI.VAE_Enums.AllocationType.MEM_COMMIT |
(uint)WINAPI.VAE_Enums.AllocationType.MEM_RESERVE,
(uint)WINAPI.VAE_Enums.ProtectionConstants.PAGE_EXECUTE_READWRITE);
if (lpAddress == (IntPtr)0)
{
sError = "Unable to allocate memory to target process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
byte[] bytes = CalcBytes(sDllPath);
IntPtr ipTmp;
WINAPI.WriteProcessMemory(
hndProc,
lpAddress,
bytes,
(uint)bytes.Length,
out ipTmp);
if (Marshal.GetLastWin32Error() != 0)
{
sError = "Unable to write memory to process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
IntPtr hThread = WINAPI.CreateRemoteThread(
hndProc,
(IntPtr)null,
(IntPtr)0,
lpLLAddress,
lpAddress,
0,
(IntPtr)null);
if (hThread == (IntPtr)0)
{
sError = "Unable to load dll into memory.";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
//added so it won't crash while thread is initializing
// Time-out is 10 seconds...
int Result = WaitForSingleObject(hThread, 10 * 1000);
// Check whether thread timed out...
if (Result == 0x00000080L || Result == 0x00000102L || Result == 0xFFFFFFFF)
{
// Make sure thread handle is valid before closing... prevents crashes.
if (hThread != null)
{
//Close thread in target process
WINAPI.CloseHandle(hThread);
}
/* Thread timed out... */
throw new Exception("WaitForSingleObject failed!\n\n Call tech support.");
}
// Sleep thread for so as not to crash host
Thread.Sleep(1000);
// Clear up allocated space ( Allocmem )
VirtualFreeEx(hndProc, lpAddress, (UIntPtr)0, 0x8000);
// Make sure thread handle is valid before closing... prevents crashes.
if (hThread != null)
{
//Close thread in target process
WINAPI.CloseHandle(hThread);
}
Trace.TraceInformation("Injecter thinks all is OK");
return(true);
}
public static bool InjectDLL(IntPtr hProcess, String strDLLName)
{
IntPtr bytesout;
// Length of string containing the DLL file name +1 byte padding
Int32 LenWrite = strDLLName.Length + 1;
// Allocate memory within the virtual address space of the target process
IntPtr AllocMem = (IntPtr)WINAPI.VirtualAllocEx(hProcess, (IntPtr)null, (uint)LenWrite, 0x1000, 0x40);
// Write DLL file name to allocated memory in target process
WINAPI.WriteProcessMemory(hProcess, AllocMem, strDLLName, (UIntPtr)LenWrite, out bytesout);
// Function pointer "Injector"
UIntPtr Injector = (UIntPtr)WINAPI.GetProcAddress(WINAPI.GetModuleHandle("kernel32.dll"), "LoadLibraryA");
if (Injector == null)
{
throw new Exception("GetProcAddress failed!\n\n Call tech support.");
}
// Create thread in target process, and store handle in hThread
IntPtr hThread = (IntPtr)WINAPI.CreateRemoteThread(hProcess, (IntPtr)null, 0, Injector, AllocMem, 0, out bytesout);
// Make sure thread handle is valid
if (hThread == null)
{
//incorrect thread handle ... return failed
throw new Exception("CreateRemoteThread failed!\n\n Call tech support.");
}
// Time-out is 10 seconds...
int Result = WINAPI.WaitForSingleObject(hThread, 10 * 1000);
// Check whether thread timed out...
if (Result == 0x00000080L || Result == 0x00000102L || Result == 0xFFFFFFFF)
{
// Make sure thread handle is valid before closing... prevents crashes.
if (hThread != null)
{
//Close thread in target process
WINAPI.CloseHandle(hThread);
}
/* Thread timed out... */
throw new Exception("WaitForSingleObject failed!\n\n Call tech support.");
}
// Sleep thread so as not to crash host
Thread.Sleep(5000);
// Clear up allocated space ( Allocmem )
WINAPI.VirtualFreeEx(hProcess, AllocMem, (UIntPtr)0, 0x8000);
// Make sure thread handle is valid before closing... prevents crashes.
if (hThread != null)
{
//Close thread in target process
WINAPI.CloseHandle(hThread);
}
return(true);
}
/// <summary>
/// Injects a x86 or x64 DLL into the process
/// </summary>
/// <param name="pToBeInjected">Process to be injected (obtained with Process.GetProcesses() ) </param>
/// <param name="sDllPath">Full path to the DLL to be injected</param>
/// <param name="sError">OUT parameter with an error string</param>
/// <returns></returns>
public static bool DoInject(
Process pToBeInjected,
string sDllPath,
out string sError)
{
IntPtr hwnd = IntPtr.Zero;
sError = String.Empty; //in case we encounter no errors
//Open the target process with read , write and execute priviledges
IntPtr hndProc = WINAPI.OpenProcess(
(0x000F0000 // STANDARD_RIGHTS_REQUIRED
| 0x00100000 // SYNCHRONIZE
| 0xFFFF
), 0, (uint)pToBeInjected.Id);
hwnd = hndProc;
if (hndProc == (IntPtr)0)
{
sError = "Unable to attatch to process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
//Get the address of LoadLibraryA
IntPtr lpLLAddress = WINAPI.GetProcAddress(
WINAPI.GetModuleHandle("kernel32.dll"),
"LoadLibraryA");
if (lpLLAddress == (IntPtr)0)
{
sError = "Unable to find address of \"LoadLibraryA\".\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
// Allocate space in the process for our DLL
IntPtr lpAddress = WINAPI.VirtualAllocEx(
hndProc,
(IntPtr)null,
(IntPtr)sDllPath.Length, //520 bytes should be enough
(uint)WINAPI.VAE_Enums.AllocationType.MEM_COMMIT |
(uint)WINAPI.VAE_Enums.AllocationType.MEM_RESERVE,
(uint)WINAPI.VAE_Enums.ProtectionConstants.PAGE_EXECUTE_READWRITE);
if (lpAddress == (IntPtr)0)
{
sError = "Unable to allocate memory to target process.\n";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
byte[] bytes = CalcBytes(sDllPath);
IntPtr ipTmp = IntPtr.Zero;
// Write the string name of our DLL in the memory allocated
int bResult = WINAPI.WriteProcessMemory(
hndProc,
lpAddress,
bytes,
(uint)bytes.Length,
out ipTmp);
// ERROR x64: "Unable to write memory to process. Error code: 1300"
if (bResult == 0)
{
sError = "Unable to write memory to process.";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
// Load our DLL
IntPtr ipThread = WINAPI.CreateRemoteThread(
hndProc,
(IntPtr)null,
(IntPtr)0,
lpLLAddress,
lpAddress,
0,
(IntPtr)null);
if (ipThread == (IntPtr)0)
{
sError = "Unable to load dll into memory.";
sError += "Error code: " + Marshal.GetLastWin32Error();
return(false);
}
WINAPI.CloseHandle(hndProc);
return(true);
}