public static ObjectInformation GetHandleInfo(this SystemHandleEntry thisHandle, ProcessHandle process, bool getName)
        {
            IntPtr        handle = new IntPtr(thisHandle.Handle);
            IntPtr        objectHandleI;
            int           retLength;
            GenericHandle objectHandle = null;

            if (thisHandle.Handle == 0 || thisHandle.Handle == -1 || thisHandle.Handle == -2)
            {
                throw new WindowsException(NtStatus.InvalidHandle);
            }

            // Duplicate the handle if we're not using KPH
            //if (KProcessHacker.Instance == null)
            {
                Win32.NtDuplicateObject(
                    process,
                    handle,
                    ProcessHandle.Current,
                    out objectHandleI,
                    0,
                    0,
                    0
                    ).ThrowIf();

                objectHandle = new GenericHandle(objectHandleI);
            }

            ObjectInformation info = new ObjectInformation();

            // If the cache contains the object type's name, use it. Otherwise, query the type
            // for its name.
            Windows.ObjectTypesLock.AcquireShared();

            try
            {
                if (Windows.ObjectTypes.ContainsKey(thisHandle.ObjectTypeNumber))
                {
                    info.TypeName = Windows.ObjectTypes[thisHandle.ObjectTypeNumber];
                }
            }
            finally
            {
                Windows.ObjectTypesLock.ReleaseShared();
            }

            if (string.IsNullOrEmpty(info.TypeName))
            {
                Win32.NtQueryObject(
                    objectHandle,
                    ObjectInformationClass.ObjectTypeInformation,
                    IntPtr.Zero,
                    0,
                    out retLength
                    );

                if (retLength > 0)
                {
                    using (MemoryAlloc otiMem = new MemoryAlloc(retLength))
                    {
                        Win32.NtQueryObject(
                            objectHandle,
                            ObjectInformationClass.ObjectTypeInformation,
                            otiMem,
                            otiMem.Size,
                            out retLength
                            ).ThrowIf();

                        ObjectTypeInformation oti = otiMem.ReadStruct <ObjectTypeInformation>();
                        UnicodeString         str = oti.Name;

                        //if (KProcessHacker.Instance != null)
                        //str.Buffer = str.Buffer.Increment(otiMem.Memory.Decrement(baseAddress));

                        info.TypeName = str.Text;

                        Windows.ObjectTypesLock.AcquireExclusive();

                        try
                        {
                            if (!Windows.ObjectTypes.ContainsKey(thisHandle.ObjectTypeNumber))
                            {
                                Windows.ObjectTypes.Add(thisHandle.ObjectTypeNumber, info.TypeName);
                            }
                        }
                        finally
                        {
                            Windows.ObjectTypesLock.ReleaseExclusive();
                        }
                    }
                }
            }

            if (!getName)
            {
                return(info);
            }

            // Get the object's name. If the object is a file we must take special
            // precautions so that we don't hang.
            if (string.Equals(info.TypeName, "File", StringComparison.OrdinalIgnoreCase))
            {
                //if (KProcessHacker.Instance != null)
                //{
                //    // Use KProcessHacker for files to avoid hangs.
                //    info.OrigName = KProcessHacker.Instance.GetHandleObjectName(process, handle);
                //}
                //else
                {
                    // 0: No hack, query the thing normally.
                    // 1: No hack, use NProcessHacker.
                    // 2: Hack.
                    int hackLevel = 1;

                    // If we already tried to use NPH but it wasn't present,
                    // skip to level 2.
                    if (NphNotAvailable)
                    {
                        hackLevel = 2;
                    }

                    // Can't use NPH because XP had a bug where a thread hanging
                    // on NtQueryObject couldn't be terminated.
                    if (OSVersion.IsBelowOrEqual(WindowsVersion.XP))
                    {
                        hackLevel = 2;
                    }

                    // On Windows 7 and above the hanging bug appears to have
                    // been fixed. Query the object normally.
                    // UPDATE: Not so. It still happens.
                    //if (OSVersion.IsAboveOrEqual(WindowsVersion.Seven))
                    //    hackLevel = 0;

                    if (hackLevel == 1)
                    {
                        try
                        {
                            // Use NProcessHacker.
                            using (MemoryAlloc oniMem = new MemoryAlloc(0x4000))
                            {
                                NProcessHacker.PhQueryNameFileObject(
                                    objectHandle,
                                    oniMem,
                                    oniMem.Size,
                                    out retLength
                                    ).ThrowIf();

                                var oni = oniMem.ReadStruct <ObjectNameInformation>();

                                info.OrigName = oni.Name.Text;
                            }
                        }
                        catch (DllNotFoundException)
                        {
                            hackLevel       = 2;
                            NphNotAvailable = true;
                        }
                    }

                    if (hackLevel == 0)
                    {
                        info.OrigName = GetObjectNameNt(process, handle, objectHandle);
                    }
                    else if (hackLevel == 2)
                    {
                        // KProcessHacker and NProcessHacker not available. Fall back to using hack
                        // (i.e. not querying the name at all if the access is 0x0012019f).
                        if (thisHandle.GrantedAccess != 0x0012019f)
                        {
                            info.OrigName = GetObjectNameNt(process, handle, objectHandle);
                        }
                    }
                }
            }
            else
            {
                // Not a file. Query the object normally.
                info.OrigName = GetObjectNameNt(process, handle, objectHandle);
            }

            // Get a better name for the handle.
            try
            {
                switch (info.TypeName)
                {
                case "File":
                    // Resolves \Device\HarddiskVolume1 into C:, for example.
                    if (!string.IsNullOrEmpty(info.OrigName))
                    {
                        info.BestName = FileUtils.GetFileName(info.OrigName);
                    }

                    break;

                case "Key":
                    info.BestName = NativeUtils.FormatNativeKeyName(info.OrigName);
                    break;

                case "Process":
                {
                    int processId;

                    using (NativeHandle <ProcessAccess> processHandle = new NativeHandle <ProcessAccess>(process, handle, OSVersion.MinProcessQueryInfoAccess))
                    {
                        if ((processId = Win32.GetProcessId(processHandle)) == 0)
                        {
                            Win32.Throw();
                        }
                    }

                    info.BestName = (new ClientId(processId, 0)).GetName(false);
                }
                break;

                case "Thread":
                {
                    int processId;
                    int threadId;

                    using (var threadHandle = new NativeHandle <ThreadAccess>(process, handle, OSVersion.MinThreadQueryInfoAccess))
                    {
                        var basicInfo = ThreadHandle.FromHandle(threadHandle).GetBasicInformation();

                        threadId  = basicInfo.ClientId.ThreadId;
                        processId = basicInfo.ClientId.ProcessId;
                    }

                    info.BestName = (new ClientId(processId, threadId)).GetName(true);
                }
                break;

                case "TmEn":
                {
                    using (NativeHandle <EnlistmentAccess> enHandleDup = new NativeHandle <EnlistmentAccess>(process, handle, EnlistmentAccess.QueryInformation))
                        using (EnlistmentHandle enHandle = EnlistmentHandle.FromHandle(enHandleDup))
                        {
                            info.BestName = enHandle.BasicInformation.EnlistmentId.ToString("B");
                        }
                }
                break;

                case "TmRm":
                {
                    using (var rmHandleDup = new NativeHandle <ResourceManagerAccess>(process, handle, ResourceManagerAccess.QueryInformation))
                    {
                        var rmHandle = ResourceManagerHandle.FromHandle(rmHandleDup);

                        info.BestName = rmHandle.Description;

                        if (string.IsNullOrEmpty(info.BestName))
                        {
                            info.BestName = rmHandle.Guid.ToString("B");
                        }
                    }
                }
                break;

                case "TmTm":
                {
                    using (NativeHandle <TmAccess> tmHandleDup = new NativeHandle <TmAccess>(process, handle, TmAccess.QueryInformation))
                        using (TmHandle tmHandle = TmHandle.FromHandle(tmHandleDup))
                        {
                            info.BestName = FileUtils.GetFileName(FileUtils.GetFileName(tmHandle.LogFileName));

                            if (string.IsNullOrEmpty(info.BestName))
                            {
                                info.BestName = tmHandle.BasicInformation.TmIdentity.ToString("B");
                            }
                        }
                }
                break;

                case "TmTx":
                {
                    using (var transactionHandleDup = new NativeHandle <TransactionAccess>(process, handle, TransactionAccess.QueryInformation))
                    {
                        TransactionHandle transactionHandle = TransactionHandle.FromHandle(transactionHandleDup);

                        info.BestName = transactionHandle.Description;

                        if (string.IsNullOrEmpty(info.BestName))
                        {
                            info.BestName = transactionHandle.BasicInformation.TransactionId.ToString("B");
                        }
                    }
                }
                break;

                case "Token":
                {
                    using (var tokenHandleDup = new NativeHandle <TokenAccess>(process, handle, TokenAccess.Query))
                        using (TokenHandle tokenHandle = TokenHandle.FromHandle(tokenHandleDup))
                            using (tokenHandle.User)
                            {
                                info.BestName = tokenHandle.User.GetFullName(true) + ": 0x" + tokenHandle.Statistics.AuthenticationId;
                            }
                }
                break;

                default:
                    if (!string.IsNullOrEmpty(info.OrigName))
                    {
                        info.BestName = info.OrigName;
                    }
                    else
                    {
                        info.BestName = null;
                    }

                    break;
                }
            }
            catch
            {
                if (!string.IsNullOrEmpty(info.OrigName))
                {
                    info.BestName = info.OrigName;
                }
                else
                {
                    info.BestName = null;
                }
            }

            if (objectHandle != null)
            {
                objectHandle.Dispose();
            }

            return(info);
        }
Beispiel #2
0
        public static ObjectInformation GetHandleInfo(this SystemHandleEntry thisHandle, ProcessHandle process, bool getName)
        {
            IntPtr        handle = new IntPtr(thisHandle.Handle);
            IntPtr        objectHandleI;
            int           retLength    = 0;
            GenericHandle objectHandle = null;

            if (thisHandle.Handle == 0 || thisHandle.Handle == -1 || thisHandle.Handle == -2)
            {
                throw new WindowsException(NtStatus.InvalidHandle);
            }

            // Duplicate the handle if we're not using KPH
            if (KProcessHacker.Instance == null)
            {
                NtStatus status;

                if ((status = Win32.NtDuplicateObject(
                         process, handle, ProcessHandle.Current, out objectHandleI, 0, 0, 0)) >= NtStatus.Error)
                {
                    Win32.ThrowLastError(status);
                }

                objectHandle = new GenericHandle(objectHandleI);
            }

            ObjectInformation info = new ObjectInformation();

            // If the cache contains the object type's name, use it. Otherwise, query the type
            // for its name.
            lock (Windows.ObjectTypes)
            {
                if (Windows.ObjectTypes.ContainsKey(thisHandle.ObjectTypeNumber))
                {
                    info.TypeName = Windows.ObjectTypes[thisHandle.ObjectTypeNumber];
                }
                else
                {
                    int baseAddress = 0;

                    if (KProcessHacker.Instance != null)
                    {
                        KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectTypeInformation,
                                                              IntPtr.Zero, 0, out retLength, out baseAddress);
                    }
                    else
                    {
                        Win32.NtQueryObject(objectHandle, ObjectInformationClass.ObjectTypeInformation,
                                            IntPtr.Zero, 0, out retLength);
                    }

                    if (retLength > 0)
                    {
                        using (MemoryAlloc otiMem = new MemoryAlloc(retLength))
                        {
                            if (KProcessHacker.Instance != null)
                            {
                                if (KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectTypeInformation,
                                                                          otiMem, otiMem.Size, out retLength, out baseAddress) >= NtStatus.Error)
                                {
                                    throw new Exception("ZwQueryObject failed.");
                                }
                            }
                            else
                            {
                                if (Win32.NtQueryObject(objectHandle, ObjectInformationClass.ObjectTypeInformation,
                                                        otiMem, otiMem.Size, out retLength) >= NtStatus.Error)
                                {
                                    throw new Exception("NtQueryObject failed.");
                                }
                            }

                            var oti = otiMem.ReadStruct <ObjectTypeInformation>();
                            var str = oti.Name;

                            if (KProcessHacker.Instance != null)
                            {
                                str.Buffer = str.Buffer.Increment(otiMem.Memory.Decrement(baseAddress));
                            }

                            info.TypeName = str.Read();
                            Windows.ObjectTypes.Add(thisHandle.ObjectTypeNumber, info.TypeName);
                        }
                    }
                }
            }

            if (!getName)
            {
                return(info);
            }

            // Get the object's name. If the object is a file we must take special
            // precautions so that we don't hang.
            if (info.TypeName == "File")
            {
                if (KProcessHacker.Instance != null)
                {
                    // Use KProcessHacker for files to avoid hangs.
                    info.OrigName = KProcessHacker.Instance.GetHandleObjectName(process, handle);
                }
                else
                {
                    // 0: No hack, query the thing normally.
                    // 1: No hack, use NProcessHacker.
                    // 2: Hack.
                    int hackLevel = 1;

                    // Can't use NPH because XP had a bug where a thread hanging
                    // on NtQueryObject couldn't be terminated.
                    if (OSVersion.IsBelowOrEqual(WindowsVersion.XP))
                    {
                        hackLevel = 2;
                    }

                    // On Windows 7 and above the hanging bug appears to have
                    // been fixed. Query the object normally.
                    // UPDATE: Not so. It still happens.
                    //if (OSVersion.IsAboveOrEqual(WindowsVersion.Seven))
                    //    hackLevel = 0;

                    if (hackLevel == 1)
                    {
                        try
                        {
                            // Use NProcessHacker.
                            using (MemoryAlloc oniMem = new MemoryAlloc(0x4000))
                            {
                                if (NProcessHacker.PhQueryNameFileObject(
                                        objectHandle, oniMem, oniMem.Size, out retLength) >= NtStatus.Error)
                                {
                                    throw new Exception("PhQueryNameFileObject failed.");
                                }

                                var oni = oniMem.ReadStruct <ObjectNameInformation>();

                                info.OrigName = oni.Name.Read();
                            }
                        }
                        catch (DllNotFoundException)
                        {
                            hackLevel = 2;
                        }
                    }

                    if (hackLevel == 0)
                    {
                        info.OrigName = GetObjectNameNt(process, handle, objectHandle);
                    }
                    else if (hackLevel == 2)
                    {
                        // KProcessHacker and NProcessHacker not available. Fall back to using hack
                        // (i.e. not querying the name at all if the access is 0x0012019f).
                        if ((int)thisHandle.GrantedAccess != 0x0012019f)
                        {
                            info.OrigName = GetObjectNameNt(process, handle, objectHandle);
                        }
                    }
                }
            }
            else
            {
                // Not a file. Query the object normally.
                info.OrigName = GetObjectNameNt(process, handle, objectHandle);
            }

            // Get a better name for the handle.
            try
            {
                switch (info.TypeName)
                {
                case "File":
                    // Resolves \Device\Harddisk1 into C:, for example.
                    if (!string.IsNullOrEmpty(info.OrigName))
                    {
                        info.BestName = FileUtils.GetFileName(info.OrigName);
                    }

                    break;

                case "Key":
                    info.BestName = NativeUtils.FormatNativeKeyName(info.OrigName);

                    break;

                case "Process":
                {
                    int processId;

                    if (KProcessHacker.Instance != null)
                    {
                        processId = KProcessHacker.Instance.KphGetProcessId(process, handle);

                        if (processId == 0)
                        {
                            throw new Exception("Invalid PID");
                        }
                    }
                    else
                    {
                        using (var processHandle =
                                   new NativeHandle <ProcessAccess>(process, handle, OSVersion.MinProcessQueryInfoAccess))
                        {
                            if ((processId = Win32.GetProcessId(processHandle)) == 0)
                            {
                                Win32.ThrowLastError();
                            }
                        }
                    }

                    info.BestName = (new ClientId(processId, 0)).GetName(false);
                }

                break;

                case "Thread":
                {
                    int processId;
                    int threadId;

                    if (KProcessHacker.Instance != null)
                    {
                        threadId = KProcessHacker.Instance.KphGetThreadId(process, handle, out processId);

                        if (threadId == 0 || processId == 0)
                        {
                            throw new Exception("Invalid TID or PID");
                        }
                    }
                    else
                    {
                        using (var threadHandle =
                                   new NativeHandle <ThreadAccess>(process, handle, OSVersion.MinThreadQueryInfoAccess))
                        {
                            var basicInfo = ThreadHandle.FromHandle(threadHandle).GetBasicInformation();

                            threadId  = basicInfo.ClientId.ThreadId;
                            processId = basicInfo.ClientId.ProcessId;
                        }
                    }

                    info.BestName = (new ClientId(processId, threadId)).GetName(true);
                }

                break;

                case "TmEn":
                {
                    using (var enHandleDup =
                               new NativeHandle <EnlistmentAccess>(process, handle, EnlistmentAccess.QueryInformation))
                    {
                        var enHandle = EnlistmentHandle.FromHandle(enHandleDup);

                        info.BestName = enHandle.GetBasicInformation().EnlistmentId.ToString("B");
                    }
                }
                break;

                case "TmRm":
                {
                    using (var rmHandleDup =
                               new NativeHandle <ResourceManagerAccess>(process, handle, ResourceManagerAccess.QueryInformation))
                    {
                        var rmHandle = ResourceManagerHandle.FromHandle(rmHandleDup);

                        info.BestName = rmHandle.GetDescription();

                        if (string.IsNullOrEmpty(info.BestName))
                        {
                            info.BestName = rmHandle.GetGuid().ToString("B");
                        }
                    }
                }
                break;

                case "TmTm":
                {
                    using (var tmHandleDup =
                               new NativeHandle <TmAccess>(process, handle, TmAccess.QueryInformation))
                    {
                        var tmHandle = TmHandle.FromHandle(tmHandleDup);

                        info.BestName = FileUtils.GetFileName(FileUtils.GetFileName(tmHandle.GetLogFileName()));

                        if (string.IsNullOrEmpty(info.BestName))
                        {
                            info.BestName = tmHandle.GetBasicInformation().TmIdentity.ToString("B");
                        }
                    }
                }
                break;

                case "TmTx":
                {
                    using (var transactionHandleDup =
                               new NativeHandle <TransactionAccess>(process, handle, TransactionAccess.QueryInformation))
                    {
                        var transactionHandle = TransactionHandle.FromHandle(transactionHandleDup);

                        info.BestName = transactionHandle.GetDescription();

                        if (string.IsNullOrEmpty(info.BestName))
                        {
                            info.BestName = transactionHandle.GetBasicInformation().TransactionId.ToString("B");
                        }
                    }
                }
                break;

                case "Token":
                {
                    using (var tokenHandleDup =
                               new NativeHandle <TokenAccess>(process, handle, TokenAccess.Query))
                    {
                        var tokenHandle = TokenHandle.FromHandle(tokenHandleDup);
                        var sid         = tokenHandle.GetUser();

                        using (sid)
                            info.BestName = sid.GetFullName(true) + ": 0x" +
                                            tokenHandle.GetStatistics().AuthenticationId.ToString();
                    }
                }

                break;

                default:
                    if (info.OrigName != null &&
                        info.OrigName != "")
                    {
                        info.BestName = info.OrigName;
                    }
                    else
                    {
                        info.BestName = null;
                    }

                    break;
                }
            }
            catch
            {
                if (info.OrigName != null && info.OrigName != "")
                {
                    info.BestName = info.OrigName;
                }
                else
                {
                    info.BestName = null;
                }
            }

            if (objectHandle != null)
            {
                objectHandle.Dispose();
            }

            return(info);
        }