Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 5.89%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.12%
6.2.9200.16384 (win8_rtm.120725-1247) 55.36%
6.2.9200.16384 (win8_rtm.120725-1247) 21.20%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.24%
6.1.7600.16385 (win7_rtm.090713-1255) 5.30%
6.1.7600.16385 (win7_rtm.090713-1255) 4.83%
6.1.7600.16385 (win7_rtm.090713-1255) 2.24%
6.1.7600.16385 (win7_rtm.090713-1255) 2.47%
6.0.6000.16386 (vista_rtm.061101-2205) 1.18%
6.0.6000.16386 (vista_rtm.061101-2205) 0.59%
6.0.6000.16386 (vista_rtm.061101-2205) 0.47%
6.0.5716.32 (winmain(wmbla).060928-1756) 0.12%

Relationships

Parent process
Child process
Related files

PE structurePE file structure

Show functions
Import table
advapi32.dll
GetTraceEnableFlags, GetTraceEnableLevel, GetTraceLoggerHandle, RegisterTraceGuidsW, TraceMessage, UnregisterTraceGuids, RegQueryValueExW, RegCloseKey, RegOpenKeyExW, TraceEvent, ConvertStringSidToSidW, RegSetValueExW, RevertToSelf, EventRegister, EventWrite, EventUnregister, EventActivityIdControl
api-ms-win-core-com-l1-1-1.dll
CLSIDFromString, CoInitializeEx, CoUninitialize
api-ms-win-core-errorhandling-l1-1-1.dll
SetLastError, GetLastError, RaiseException, SetUnhandledExceptionFilter, UnhandledExceptionFilter
api-ms-win-core-file-l1-2-1.dll
CreateFileW, WriteFile, FlushFileBuffers, ReadFile
api-ms-win-core-handle-l1-1-0.dll
CloseHandle
api-ms-win-core-heap-l1-2-0.dll
HeapAlloc, GetProcessHeap, HeapFree, HeapSetInformation
api-ms-win-core-heap-obsolete-l1-1-0.dll
LocalAlloc, LocalFree
api-ms-win-core-io-l1-1-1.dll
GetOverlappedResult, DeviceIoControl
api-ms-win-core-libraryloader-l1-1-1.dll
LoadLibraryExW, GetModuleHandleA, GetProcAddress, LoadLibraryExA, FreeLibrary
api-ms-win-core-namedpipe-l1-2-0.dll
WaitNamedPipeW, SetNamedPipeHandleState, TransactNamedPipe
api-ms-win-core-processenvironment-l1-2-0.dll
SetEnvironmentVariableW, ExpandEnvironmentStringsW
api-ms-win-core-processthreads-l1-1-2.dll
GetCurrentThread, TlsFree, GetCurrentProcess, TlsSetValue, GetCurrentProcessId, TlsAlloc, TlsGetValue, GetCurrentThreadId, TerminateProcess, CreateThread
api-ms-win-core-profile-l1-1-0.dll
QueryPerformanceCounter
api-ms-win-core-registry-l1-1-0.dll
RegCloseKey, RegQueryValueExW, RegSetValueExW, RegOpenKeyExW
api-ms-win-core-rtlsupport-l1-2-0.dll
RtlCaptureContext
api-ms-win-core-synch-l1-2-0.dll
DeleteCriticalSection, InitializeCriticalSection, Sleep, WaitForSingleObject, CreateEventW, EnterCriticalSection, SetEvent, WaitForMultipleObjectsEx, InitializeCriticalSectionAndSpinCount, LeaveCriticalSection
api-ms-win-core-sysinfo-l1-2-1.dll
GetTickCount, GetSystemTimeAsFileTime, GetSystemDirectoryW, GetOsSafeBootMode
api-ms-win-core-threadpool-l1-2-0.dll
SetThreadpoolThreadMinimum, SetThreadpoolThreadMaximum, CloseThreadpool, CreateThreadpool, CreateThreadpoolWait, SetThreadpoolWait, WaitForThreadpoolWaitCallbacks, CloseThreadpoolWait, CloseThreadpoolCleanupGroupMembers, CloseThreadpoolCleanupGroup, CreateThreadpoolCleanupGroup
api-ms-win-eventing-classicprovider-l1-1-0.dll
TraceMessage, RegisterTraceGuidsW, GetTraceEnableFlags, GetTraceEnableLevel, UnregisterTraceGuids, GetTraceLoggerHandle
api-ms-win-eventing-provider-l1-1-0.dll
EventActivityIdControl, EventUnregister, EventWrite, EventRegister
api-ms-win-security-base-l1-2-0.dll
RevertToSelf
api-ms-win-security-sddl-l1-1-0.dll
ConvertStringSidToSidW
devobj.dll
DevObjGetDeviceRegistryProperty, DevObjCreateDeviceInfoList, DevObjOpenDevRegKey, DevObjGetDeviceInstanceId, DevObjDestroyDeviceInfoList, DevObjEnumDeviceInfo, DevObjGetClassDevs
kernel32.dll
GetProcAddress, GetModuleHandleW, GetVersionExW, WaitForSingleObject, CloseHandle, TlsFree, GetLastError, TlsGetValue, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, TlsSetValue, TlsAlloc, InitializeCriticalSectionAndSpinCount, GetSystemDirectoryW, HeapSetInformation, InterlockedIncrement, InterlockedDecrement, InterlockedCompareExchange, CreateThread, LocalFree, CreateEventW, SetEvent, GetOverlappedResult, DeviceIoControl, CreateFileW, SetEnvironmentVariableW, InitializeCriticalSection, InterlockedExchange, BindIoCompletionCallback, FreeLibrary, LoadLibraryExW, GetCurrentProcessId, HeapFree, HeapAlloc, GetProcessHeap, FlushFileBuffers, Sleep, ReadFile, WriteFile, GetCurrentThread, VerifyVersionInfoW, VerSetConditionMask, LocalAlloc, LoadLibraryA, RaiseException, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, GetSystemTimeAsFileTime, GetCurrentThreadId, GetTickCount, QueryPerformanceCounter, GetModuleHandleA, SetUnhandledExceptionFilter, OutputDebugStringA, RtlCaptureContext, WaitNamedPipeW, SetNamedPipeHandleState, TransactNamedPipe, ExpandEnvironmentStringsW, SetThreadpoolThreadMinimum, SetThreadpoolThreadMaximum, CloseThreadpool, CreateThreadpool, CreateThreadpoolWait, SetThreadpoolWait, WaitForThreadpoolWaitCallbacks, CloseThreadpoolWait, WaitForMultipleObjects, LoadLibraryExA
msvcrt.dll
DllMain
ntdll.dll
DbgPrintEx, RtlNtStatusToDosError, NtQueryInformationFile, RtlUnwind, NtSetInformationFile, RtlInitUnicodeString, RtlSetIoCompletionCallback, VerSetConditionMask, RtlVerifyVersionInfo
ole32.dll
CoInitializeEx, CLSIDFromString, CoUninitialize
rpcrt4.dll
UuidFromStringW
user32.dll
GetSystemMetrics
wudfplatform.dll
GetAndInitializePlatformObject, ShutdownPlatformLibrary, WudfWaitForDebugger, WudfDebugBreakPoint, WudfIsUserDebuggerPresent, WdfGetLpcInterface, InitializePlatformLibrary, WudfIsKernelDebuggerPresent

WUDFHost.exe

Windows Driver Foundation - User-mode Driver Framework Host Process by Microsoft

Remove WUDFHost.exe
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   c6e7ab7e798167095987ebccb76df61b
SHA1:   8e91c91146c1c93c7211818cb220d57cfc1aeddf
SHA256:   35ad463afd5394c9c339b6cbe1f6917954c2ed7de7cff02a2fb3ccf48a983ffd
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is WUDFHost.exe?

Windows Driver Foundation (WDF) is a set of Microsoft tools that aid in the creation of device drivers for Windows. The User-Mode Driver Framework, for writing certain classes of driver that can run in user-mode.

About WUDFHost.exe (from Microsoft)

WDF implements the fundamental features of a Windows driver and enables you to focus on the specific details of your hardware or filter. WDF defines a single driver model that you can use to create ob

Overview

WUDFHost.exe executes as a process with the local user's privileges typically within the context of its parent svchost.exe (Host Process for Windows Services by Microsoft Corporation). This version is designed to run on Windows 7 and is compiled as a 32 bit program.

DetailsDetails

File name:WUDFHost.exe
Publisher:Microsoft Corporation
Product name:Windows Driver Foundation - User-mode Driver Framework Host Process
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\wudfhost.exe
Original name:WUDFHost.exe.mui
File version:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:191 KB (195,584 bytes)
Digital DNA
Entropy:5.856292
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.01119368%
0.028634%
Kernel CPU:0.00887010%
0.013761%
User CPU:0.00232358%
0.014873%
Kernel CPU time:299,883 ms/min
100,923,805ms/min
User CPU time:0 ms/min
0 ms/min
CPU cycles:62,275/sec
17,470,203/sec
Context switches:2/sec
284/sec
Memory
Private memory:1.65 MB
21.59 MB
Private (maximum):4.67 MB
Private (minimum):3.63 MB
Non-paged memory:1.65 MB
21.59 MB
Virtual memory:34.59 MB
140.96 MB
Virtual memory (peak):35.42 MB
169.69 MB
Working set:4.07 MB
18.61 MB
Working set (peak):5.26 MB
37.95 MB
Page faults:3,387/min
2,039/min
I/O
I/O read transfer:2.12 KB/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O write transfer:39 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:188 Bytes/sec
448.09 KB/min
I/O other operations:17/sec
1,671/min
Resource allocations
Threads:9
12
Handles:226
600
GUI GDI count:4
103
GUI USER count:2
49

BehaviorsProcess properties

Integrety level:System
Platform:32-bit
Command lines:
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-8ad0ecc9-d735-47b4-8134-220c5c7996c3 -systemeventportnamC:hostprocess-64419664-b054-426f-91c0-84217bb307eb -iocanceleventportnamC:hostprocess-67857988-03df-4027-8fbc-9cc575a1eb31 -nonstatechangingeventportnamC:hostprocess-26dc9a0f-a3be-4e23-b56e-463ba0646e7e -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:3b13f79d-aa5d-4adc-866d-765ef5c0b4a3
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-e9870c35-b144-48b4-813b-cec0a4290f1d -systemeventportnamC:hostprocess-2665f99a-3b93-4fe4-84b7-21dfc16ff527 -iocanceleventportnamC:hostprocess-605e5a4a-3335-44c9-a2e3-612b99646903 -nonstatechangingeventportnamC:hostprocess-aa49bf17-94bf-44fd-b04d-b17af6a48f5e -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:3d31db64-26c8-4f6a-b13d-7b62608c22c3
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-a3d056d2-1e87-4b8b-a7c2-4c71cd005a83 -systemeventportnamC:hostprocess-b2e0545f-f0a6-4e9e-89c2-697b72a036f2 -iocanceleventportnamC:hostprocess-ba8a71fc-b9c3-418a-97a4-a866267b4507 -nonstatechangingeventportnamC:hostprocess-0bd28a02-fe85-4c54-8e19-252261375069 -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:c28c5d59-7999-42ed-9662-4a39f7e0b5dd
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-664f2d54-8b83-410e-822d-57547ccbee23 -systemeventportnamC:hostprocess-b4433564-7f77-44bc-852f-4659f95645f5 -iocanceleventportnamC:hostprocess-d309cc3f-58c3-48de-b853-f611133dfc7d -nonstatechangingeventportnamC:hostprocess-e813edc0-1b74-4b28-898b-53d9ffc24281 -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:fe377dc4-6712-4bac-adf1-8eefaa1547b2
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-9ae024fe-7638-4320-b676-19153be06530 -systemeventportnamC:hostprocess-ee6ae0c4-f062-4b92-802c-0678dc4861ec -iocanceleventportnamC:hostprocess-4f8f2d5b-a61f-4af7-b76c-fd9f0d9443c6 -nonstatechangingeventportnamC:hostprocess-d4ff4050-08a5-48a4-bc13-247a30a75c96 -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:39d7fa15-a366-4d39-9b64-6bca0e82bf78
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-4ff2f09c-874f-4559-9e0e-82108c05cdbe -systemeventportnamC:hostprocess-9df9dcaa-9d56-44c9-9870-704560d6de90 -iocanceleventportnamC:hostprocess-2432fe6f-79c5-44ad-bd35-7a902c6582d5 -nonstatechangingeventportnamC:hostprocess-c8ea2b8d-8115-44f5-8456-3f1a44759ada -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:5347d7c2-05ce-4db8-94b9-50d82f027709
  • "C:\Windows\System32\wudfhost.exe" -hostguiC:{193a1820-d9ac-4997-8c55-be817523f6aa} -ioeventportnamC:hostprocess-336d411f-b845-49ad-8944-06de2a778c56 -systemeventportnamC:hostprocess-0d2a044c-48bf-41b1-a37f-9a4d1e5857dd -iocanceleventportnamC:hostprocess-baa3baaf-a627-4acb-b489-d0e3c1fcf712 -nonstatechangingeventportnamC:hostprocess-319c7c75-8d20-4c90-b565-af6046f7ceed -servicesiC:s-1-5-80-2652678385-582572993-1835434367-1344795993-749280709 -lifetimeiC:807f9cbe-49a4-4c2e-98f0-c2fd83f6497c
  • (41 more)
Owner:User
Parent process:svchost.exe (Host Process for Windows Services by Microsoft Corporation)

ResourcesThreads

Averages
 
WUDFHost.exe (main module)
Total CPU:0.00312671%
0.272967%
Kernel CPU:0.00219581%
0.107585%
User CPU:0.00093090%
0.165382%
CPU cycles:56,476/sec
5,741,424/sec
Memory:204 KB
1.16 MB
WpdFs.dll
Total CPU:0.00132713%
Kernel CPU:0.00072344%
User CPU:0.00060369%
CPU cycles:28,219/sec
Memory:228 KB
SensorsAlsDriver.dll
Total CPU:0.00005250%
Kernel CPU:0.00000142%
User CPU:0.00005108%
CPU cycles:1,257/sec
Memory:48 KB
ntdll.dll
Total CPU:0.00000654%
Kernel CPU:0.00000654%
User CPU:0.00000000%
CPU cycles:10/sec
Memory:1.23 MB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 28.00%
Windows 7 Ultimate 14.50%
Windows 8.1 11.50%
Windows 7 Professional 10.50%
Windows 8 Pro 7.50%
Windows 8.1 Pro 6.50%
Windows 8 4.50%
Windows 8.1 Single Language 3.50%
Windows 8 Single Language 3.00%
Windows 8.1 Pro with Media Center 2.50%
Windows 8 Enterprise 2.00%
Windows Vista Home Premium 2.00%
Windows Seven Black Edition 1.00%
Windows 8.1 Enterprise Evaluation 0.50%
Windows Vista Home Basic 0.50%
Windows 7 Starter 0.50%
Windows 8.1 Enterprise 0.50%
Windows 7 Enterprise 0.50%
Windows Se7en Titan 0.50%

Distribution by countryDistribution by country

United States installs about 41.12% of Windows Driver Foundation - User-mode Driver Framework Host Process.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Lenovo 19.31%
ASUS 16.99%
Hewlett-Packard 16.22%
Dell 16.22%
Acer 11.58%
Sony 6.18%
GIGABYTE 3.09%
Toshiba 2.32%
Intel 2.32%
Samsung 1.54%
Medion 1.54%
Gateway 0.77%
NEC 0.77%
Sahara 0.39%
Alienware 0.39%
American Megatrends 0.39%
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