RunAsImpersonator.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace RunAsX {
    public class RunAsImpersonator {

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
        struct StartupInfo {
            public int cb;
            public string reserved1;
            public string desktop;
            public string title;
            public uint dwX;
            public uint dwY;
            public uint dwXSize;
            public uint dwYSize;
            public uint dwXCountChars;
            public uint dwYCountChars;
            public uint dwFillAttribute;
            public uint dwFlags;
            public ushort wShowWindow;
            public short reserved2;
            public int reserved3;
            public IntPtr hStdInput;
            public IntPtr hStdOutput;
            public IntPtr hStdError;
        }

        [StructLayout(LayoutKind.Sequential)]
        struct ProcessInfo {
            public IntPtr hProcess;
            public IntPtr hThread;
            public uint dwProcessId;
            public uint dwThreadId;
        }

        [Flags]
        enum LogonFlags {
            LOGON_WITH_PROFILE = 0x00000001,
            LOGON_NETCREDENTIALS_ONLY = 0x00000002
        }

        [Flags]
        enum CreationFlags {
            CREATE_SUSPENDED = 0x00000004,
            CREATE_NEW_CONSOLE = 0x00000010,
            CREATE_NEW_PROCESS_GROUP = 0x00000200,
            CREATE_UNICODE_ENVIRONMENT = 0x00000400,
            CREATE_SEPARATE_WOW_VDM = 0x00000800,
            CREATE_DEFAULT_ERROR_MODE = 0x04000000,
        }

        [DllImport("advapi32.dll", CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = true)]
        static extern bool CreateProcessWithLogonW(
            string principal,
            string authority,
            string password,
            LogonFlags logonFlags,
            string appName,
            string cmdLine,
            CreationFlags creationFlags,
            IntPtr environmentBlock,
            string currentDirectory,
            ref StartupInfo startupInfo,
            out ProcessInfo processInfo);

        public static void Run(string file, string domain, string login, string password) {
            //var commandLine = string.Format("\"{0}\" {1}", pathToIExploreExe, arguments);
            var commandLine = string.Format("\"{0}\"", file);

            uint LOGON_NETCREDENTIALS_ONLY = 2;
            var lpStartupInfo = new StartupInfo();
            ProcessInfo processInformation;

            CreateProcessWithLogonW(
                        login,
                        domain,
                        password,
                        (LogonFlags) LOGON_NETCREDENTIALS_ONLY,
                        null,
                        commandLine,
                        0,
                        IntPtr.Zero,
                        null,
                        ref lpStartupInfo,
                        out processInformation);
        }

    }
}