示例#1
0
        private void unloadMenuItem_Click(object sender, EventArgs e)
        {
            if (!PhUtils.ShowConfirmMessage(
                "Unload",
                _pid != 4 ? "the selected module" : "the selected driver",
                _pid != 4 ?
                "Unloading a module may cause the process to crash." :
                "Unloading a driver may cause system instability.",
                true
                ))
                return;

            if (_pid == 4)
            {
                try
                {
                    var moduleItem = (ModuleItem)listModules.SelectedItems[0].Tag;
                    string serviceName = null;

                    using (var dhandle = new DirectoryHandle("\\Driver", DirectoryAccess.Query))
                    {
                        foreach (var obj in dhandle.GetObjects())
                        {
                            try
                            {
                                using (var driverHandle = new DriverHandle("\\Driver\\" + obj.Name))
                                {
                                    if (driverHandle.GetBasicInformation().DriverStart == moduleItem.BaseAddress)
                                    {
                                        serviceName = driverHandle.GetServiceKeyName();
                                        break;
                                    }
                                }
                            }
                            catch
                            { }
                        }
                    }

                    if (serviceName == null)
                    {
                        if (moduleItem.Name.ToLower().EndsWith(".sys"))
                            serviceName = moduleItem.Name.Remove(moduleItem.Name.Length - 4, 4);
                        else
                            serviceName = moduleItem.Name;
                    }

                    RegistryKey servicesKey =
                        Registry.LocalMachine.OpenSubKey("SYSTEM\\CurrentControlSet\\Services", true);
                    bool serviceKeyCreated;
                    RegistryKey serviceKey;

                    if (Array.Exists<string>(servicesKey.GetSubKeyNames(),
                        (keyName) => (string.Compare(keyName, serviceName, true) == 0)))
                    {
                        serviceKeyCreated = false;
                    }
                    else
                    {
                        serviceKeyCreated = true;

                        serviceKey = servicesKey.CreateSubKey(serviceName);

                        serviceKey.SetValue("ErrorControl", 1, RegistryValueKind.DWord);
                        serviceKey.SetValue("ImagePath", "\\??\\" + moduleItem.FileName, RegistryValueKind.ExpandString);
                        serviceKey.SetValue("Start", 1, RegistryValueKind.DWord);
                        serviceKey.SetValue("Type", 1, RegistryValueKind.DWord);
                        serviceKey.Close();
                        servicesKey.Flush();
                    }

                    try
                    {
                        Windows.UnloadDriver(serviceName);
                    }
                    finally
                    {
                        if (serviceKeyCreated)
                            servicesKey.DeleteSubKeyTree(serviceName);

                        servicesKey.Close();
                    }

                    listModules.SelectedItems.Clear();
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Unable to unload the driver. Make sure Process Hacker " +
                        "is running with administrative privileges. Error:\n\n" +
                        ex.Message, "Process Hacker", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else
            {
                try
                {
                    using (ProcessHandle phandle = new ProcessHandle(_pid,
                        Program.MinProcessQueryRights | ProcessAccess.VmOperation |
                        ProcessAccess.VmRead | ProcessAccess.VmWrite | ProcessAccess.CreateThread))
                    {
                        IntPtr baseAddress = ((ModuleItem)listModules.SelectedItems[0].Tag).BaseAddress;

                        phandle.SetModuleReferenceCount(baseAddress, 1);

                        ThreadHandle thread;

                        if (OSVersion.IsAboveOrEqual(WindowsVersion.Vista))
                        {

                            thread = phandle.CreateThread(
                                Loader.GetProcedure("ntdll.dll", "LdrUnloadDll"),
                                baseAddress
                                );
                        }
                        else
                        {

                            thread = phandle.CreateThreadWin32(
                                Loader.GetProcedure("kernel32.dll", "FreeLibrary"),
                                baseAddress
                                );
                        }

                        thread.Wait(1000 * Win32.TimeMsTo100Ns);

                        NtStatus exitStatus = thread.GetExitStatus();

                        if (exitStatus == NtStatus.DllNotFound)
                        {
                            if (IntPtr.Size == 8)
                            {
                                PhUtils.ShowError("Unable to find the module to unload. This may be caused " +
                                    "by an attempt to unload a mapped file or a 32-bit module.");
                            }
                            else
                            {
                                PhUtils.ShowError("Unable to find the module to unload. This may be caused " +
                                    "by an attempt to unload a mapped file.");
                            }
                        }
                        else
                        {
                            exitStatus.ThrowIf();
                        }

                        thread.Dispose();
                    }

                    listModules.SelectedItems.Clear();
                }
                catch (Exception ex)
                {
                    PhUtils.ShowException("Unable to unload the module", ex);
                }
            }
        }
示例#2
0
        public void KphQueryInformationDriver(
            DriverHandle driverHandle,
            DriverInformationClass driverInformationClass,
            IntPtr driverInformation,
            int driverInformationLength,
            out int returnLength
            )
        {
            byte* inData = stackalloc byte[0x14];
            int returnLengthLocal;

            *(int*)inData = driverHandle;
            *(int*)(inData + 0x4) = (int)driverInformationClass;
            *(int*)(inData + 0x8) = driverInformation.ToInt32();
            *(int*)(inData + 0xc) = driverInformationLength;
            *(int*)(inData + 0x10) = (int)&returnLengthLocal;

            try
            {
                _fileHandle.IoControl(CtlCode(Control.KphQueryInformationDriver), inData, 0x14, null, 0);
            }
            finally
            {
                returnLength = returnLengthLocal;
            }
        }
示例#3
0
        private void unloadMenuItem_Click(object sender, EventArgs e)
        {
            if (!PhUtils.ShowConfirmMessage(
                "Unload",
                _pid != 4 ? "the selected module" : "the selected driver",
                _pid != 4 ?
                "Unloading a module may cause the process to crash." :
                "Unloading a driver may cause system instability.",
                true
                ))
                return;

            if (_pid == 4)
            {
                try
                {
                    ModuleItem moduleItem = listModules.SelectedItems[0].Tag as ModuleItem;
                    string serviceName = null;

                    // Try to find the name of the service key for the driver by 
                    // looping through the objects in the Driver directory and 
                    // opening each one.
                    using (DirectoryHandle dhandle = new DirectoryHandle("\\Driver", DirectoryAccess.Query))
                    {
                        foreach (DirectoryHandle.ObjectEntry obj in dhandle.GetObjects())
                        {
                            try
                            {
                                using (DriverHandle driverHandle = new DriverHandle("\\Driver\\" + obj.Name))
                                {
                                    if (driverHandle.BasicInformation.DriverStart == moduleItem.BaseAddress.ToIntPtr())
                                    {
                                        serviceName = driverHandle.ServiceKeyName;
                                        break;
                                    }
                                }
                            }
                            catch
                            { }
                        }
                    }

                    // If we didn't find the service name, use the driver base name.
                    if (string.IsNullOrEmpty(serviceName))
                    {
                        if (moduleItem.Name.EndsWith(".sys", StringComparison.OrdinalIgnoreCase))
                            serviceName = moduleItem.Name.Remove(moduleItem.Name.Length - 4, 4);
                        else
                            serviceName = moduleItem.Name;
                    }

                    RegistryKey servicesKey = Registry.LocalMachine.OpenSubKey("SYSTEM\\CurrentControlSet\\Services", true);
                    bool serviceKeyCreated;
                    RegistryKey serviceKey;

                    // Check if the service key exists so that we don't delete it 
                    // later if it does.
                    if (Array.Exists(servicesKey.GetSubKeyNames(),  keyName => string.Compare(keyName, serviceName, true) == 0))
                    {
                        serviceKeyCreated = false;
                    }
                    else
                    {
                        serviceKeyCreated = true;
                        // Create the service key.
                        serviceKey = servicesKey.CreateSubKey(serviceName);

                        serviceKey.SetValue("ErrorControl", 1, RegistryValueKind.DWord);
                        serviceKey.SetValue("ImagePath", "\\??\\" + moduleItem.FileName, RegistryValueKind.ExpandString);
                        serviceKey.SetValue("Start", 1, RegistryValueKind.DWord);
                        serviceKey.SetValue("Type", 1, RegistryValueKind.DWord);
                        serviceKey.Close();
                        servicesKey.Flush();
                    }

                    try
                    {
                        Windows.UnloadDriver(serviceName);
                    }
                    finally
                    {
                        if (serviceKeyCreated)
                            servicesKey.DeleteSubKeyTree(serviceName);

                        servicesKey.Close();
                    }

                    listModules.SelectedItems.Clear();
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Unable to unload the driver. Make sure Process Hacker " +
                        "is running with administrative privileges. Error:\n\n" +
                        ex.Message, "Process Hacker", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else
            {
                try
                {
                    using (ProcessHandle phandle = new ProcessHandle(_pid, Program.MinProcessQueryRights | ProcessAccess.VmOperation |
                        ProcessAccess.VmRead | ProcessAccess.VmWrite | ProcessAccess.CreateThread))
                    {
                        IntPtr baseAddress = (listModules.SelectedItems[0].Tag as ModuleItem).BaseAddress.ToIntPtr();

                        phandle.SetModuleReferenceCount(baseAddress, 1);

                        ThreadHandle thread;

                        if (OSVersion.IsAboveOrEqual(WindowsVersion.Vista))
                        {
                            // Use RtlCreateUserThread to bypass session boundaries. Since 
                            // LdrUnloadDll is a native function we don't need to notify CSR.
                            thread = phandle.CreateThread(
                                Loader.GetProcedure("ntdll.dll", "LdrUnloadDll"),
                                baseAddress
                                );
                        }
                        else
                        {
                            // On XP it seems we need to notify CSR...
                            thread = phandle.CreateThreadWin32(
                                Loader.GetProcedure("kernel32.dll", "FreeLibrary"),
                                baseAddress
                                );
                        }

                        thread.Wait(1000 * Win32.TimeMsTo100Ns);

                        NtStatus exitStatus = thread.GetExitStatus();

                        if (exitStatus == NtStatus.DllNotFound)
                        {
                            if (OSVersion.Architecture == OSArch.Amd64)
                            {
                                PhUtils.ShowError("Unable to find the module to unload. This may be caused by an attempt to unload a mapped file or a 32-bit module.");
                            }
                            else
                            {
                                PhUtils.ShowError("Unable to find the module to unload. This may be caused by an attempt to unload a mapped file.");
                            }
                        }
                        else
                        {
                            exitStatus.ThrowIf();
                        }

                        thread.Dispose();
                    }

                    listModules.SelectedItems.Clear();
                }
                catch (Exception ex)
                {
                    PhUtils.ShowException("Unable to unload the module", ex);
                }
            }
        }