public static bool Is64BitProcess(int pid)
{
SYSTEM_INFO si = new SYSTEM_INFO();
UnsafeFunctions.GetNativeSystemInfo(ref si);
if (si.processorArchitecture == 0)
{
return(false);
}
IntPtr hProcess = UnsafeFunctions.OpenProcess(ProcessAccessFlags.QueryInformation, false, pid);
if (IntPtr.Zero == hProcess)
{
throw new Exception("Cann't open process.");
}
bool result;
if (!UnsafeFunctions.IsWow64Process(hProcess, out result))
{
UnsafeFunctions.CloseHandle(hProcess);
throw new InvalidOperationException();
}
UnsafeFunctions.CloseHandle(hProcess);
return(!result);
}
private IntPtr GetFunctionAddress(ProcessModule remoteKernel32, string name)
{
Process process = Process.GetCurrentProcess();
ProcessModule kernel32 = GetKernel32Module(process);
IntPtr proc = UnsafeFunctions.GetProcAddress(kernel32.BaseAddress, name);
if (IntPtr.Zero == proc)
{
throw new Exception("Cann't get process address.");
}
return(new IntPtr(remoteKernel32.BaseAddress.ToInt64() + (proc.ToInt64() - kernel32.BaseAddress.ToInt64())));
}
protected void adjustDebugPriv(int pid)
{
IntPtr hProcess = UnsafeFunctions.OpenProcess(ProcessAccessFlags.All, false, pid);
if (IntPtr.Zero == hProcess)
{
throw new Exception("Cann't open process.");
}
TOKEN_PRIVILEGES tp = new TOKEN_PRIVILEGES
{
PrivilegeCount = 1,
Attributes = SE_NAMES.SE_PRIVILEGE_ENABLED
};
if (!UnsafeFunctions.LookupPrivilegeValue(null, SE_NAMES.SE_DEBUG_NAME, out tp.Luid))
{
UnsafeFunctions.CloseHandle(hProcess);
throw new Exception("Cann't lookup value");
}
IntPtr hToken;
if (!UnsafeFunctions.OpenProcessToken(hProcess, TOKEN_ACCESS.TOKEN_ADJUST_PRIVILEGES, out hToken))
{
UnsafeFunctions.CloseHandle(hProcess);
throw new Exception("Cann't open process token value");
}
if (!UnsafeFunctions.AdjustTokenPrivileges(hToken, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero))
{
UnsafeFunctions.CloseHandle(hProcess);
UnsafeFunctions.CloseHandle(hToken);
throw new Exception("Cann't AdjustTokenPrivileges");
}
UnsafeFunctions.CloseHandle(hProcess);
UnsafeFunctions.CloseHandle(hToken);
}
public int Inject(int pid, string bootstrapPath, string runtimeVersion, string injecteePath, string injecteeClass, string injecteeFunc)
{
adjustDebugPriv(Process.GetCurrentProcess().Id);
ProcessModule remoteKernel32 = GetKernel32Module(Process.GetProcessById(pid));
IntPtr loadLibraryAddress = GetFunctionAddress(remoteKernel32, "LoadLibraryA");
IntPtr getProcAddressAddress = GetFunctionAddress(remoteKernel32, "GetProcAddress");
IntPtr hProcess = UnsafeFunctions.OpenProcess(
ProcessAccessFlags.CreateThread | ProcessAccessFlags.VMWrite | ProcessAccessFlags.VMOperation
| ProcessAccessFlags.VMRead | ProcessAccessFlags.QueryInformation,
false, pid);
if (IntPtr.Zero == hProcess)
{
throw new Exception("Cann't open process.");
}
bool is64BitTargetProcess = Is64BitProcess(pid);
byte[] bootstrap = File.ReadAllBytes(bootstrapPath);
List <byte[]> param = new List <byte[]>(6)
{
Encoding.Unicode.GetBytes(runtimeVersion + "\0"),
Encoding.Unicode.GetBytes(injecteePath + "\0"),
Encoding.Unicode.GetBytes(injecteeClass + "\0"),
Encoding.Unicode.GetBytes(injecteeFunc + "\0")
};
int totalSize = bootstrap.Length // code
+ (param.Count + 2) * (is64BitTargetProcess ? 8 : 4) // addresses of params
+ param.Sum(p => p.Length); // params
IntPtr memory = UnsafeFunctions.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)totalSize, AllocationType.Commit, MemoryProtection.ExecuteReadWrite);
if (IntPtr.Zero == memory)
{
UnsafeFunctions.CloseHandle(hProcess);
throw new Exception("Cann't alloc memory.");
}
int length = param.Count;
if (is64BitTargetProcess)
{
param.Add(BitConverter.GetBytes(loadLibraryAddress.ToInt64()));
param.Add(BitConverter.GetBytes(getProcAddressAddress.ToInt64()));
}
else
{
param.Add(BitConverter.GetBytes(loadLibraryAddress.ToInt32()));
param.Add(BitConverter.GetBytes(getProcAddressAddress.ToInt32()));
}
long address = memory.ToInt64() + bootstrap.Length;
for (int i = 0; i < length; i++)
{
byte[] b;
if (is64BitTargetProcess)
{
b = BitConverter.GetBytes(address);
}
else
{
b = BitConverter.GetBytes((int)address);
}
param.Add(b);
address += param[i].Length;
}
byte[] injectedData = new byte[totalSize];
Array.Copy(bootstrap, 0, injectedData, 0, bootstrap.Length);
int position = bootstrap.Length;
foreach (var p in param)
{
Array.Copy(p, 0, injectedData, position, p.Length);
position += p.Length;
}
UIntPtr written;
if (!UnsafeFunctions.WriteProcessMemory(hProcess, memory, injectedData, (uint)injectedData.Length, out written) || injectedData.Length != written.ToUInt32())
{
UnsafeFunctions.CloseHandle(hProcess);
throw new Exception("Cann't write memory.");
}
IntPtr threadId;
IntPtr thread = UnsafeFunctions.CreateRemoteThread(hProcess, IntPtr.Zero, 0x20000 /*at least 0x10000*/, memory, new IntPtr(address), 0, out threadId);
if (IntPtr.Zero == thread)
{
Debug.WriteLine(Marshal.GetLastWin32Error().ToString("X"));
UnsafeFunctions.CloseHandle(hProcess);
throw new Exception("Cann't create thread.");
}
UnsafeFunctions.CloseHandle(hProcess);
UnsafeFunctions.CloseHandle(thread);
return(0);
}
