Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 3.59%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.11%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.16%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.05%
6.2.9200.16384 (win8_rtm.120725-1247) 2.69%
6.2.9200.16384 (win8_rtm.120725-1247) 9.93%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.11%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.11%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.05%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.11%
6.1.7600.16385 (win7_rtm.090713-1255) 30.16%
6.1.7600.16385 (win7_rtm.090713-1255) 25.83%
6.1.7600.16385 (win7_rtm.090713-1255) 0.05%
6.0.6000.16386 (vista_rtm.061101-2205) 0.85%
6.0.6000.16386 (vista_rtm.061101-2205) 0.42%
6.0.6000.16386 (vista_rtm.061101-2205) 6.76%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.11%
5.1.2600.5512 (xpsp.080413-2108) 11.52%
5.1.2600.5512 (xpsp.080413-2108) 0.95%
5.1.2600.5512 (xpsp.080413-2108) 0.69%
5.1.2600.5512 (xpsp.080413-2108) 0.11%
5.1.2600.5512 (xpsp.080413-2108) 0.63%
5.1.2600.5512 (xpsp.080413-2108) 0.05%
5.1.2600.5512 (xpsp.080413-2108) 0.05%
5.1.2600.5512 (xpsp.080413-2108) 0.42%
View more

PE structurePE file structure
Show functions
Import table
advapi32.dll
OpenSCManagerW, OpenServiceW, QueryServiceStatus, CloseServiceHandle, WmiNotificationRegistrationW, CreateProcessAsUserW, GetTokenInformation, LookupAccountSidW, RegOpenKeyExW, RegQueryValueExW, RegCloseKey, GetLengthSid, InitializeAcl, AddAccessAllowedAce, InitializeSecurityDescriptor, SetSecurityDescriptorDacl, AllocateAndInitializeSid, FreeSid, UnregisterTraceGuids, RegisterTraceGuidsW, GetTraceLoggerHandle, GetTraceEnableLevel, GetTraceEnableFlags, RegisterServiceCtrlHandlerExW, SetServiceStatus, TraceMessage
api-ms-win-core-delayload-l1-1-1.dll
DelayLoadFailureHook, ResolveDelayLoadedAPI
api-ms-win-core-errorhandling-l1-1-0.dll
UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetLastError
api-ms-win-core-errorhandling-l1-1-1.dll
UnhandledExceptionFilter, GetLastError, SetUnhandledExceptionFilter
api-ms-win-core-handle-l1-1-0.dll
DuplicateHandle, CloseHandle
api-ms-win-core-heap-l1-1-0.dll
HeapFree, GetProcessHeap, HeapAlloc
api-ms-win-core-heap-l1-2-0.dll
GetProcessHeap, HeapAlloc, HeapFree
api-ms-win-core-interlocked-l1-1-0.dll
InterlockedExchange, InterlockedCompareExchange, InterlockedDecrement, InterlockedIncrement
api-ms-win-core-interlocked-l1-2-0.dll
InterlockedCompareExchange, InterlockedExchange, InterlockedDecrement, InterlockedIncrement
api-ms-win-core-kernel32-legacy-l1-1-0.dll
GetSystemPowerStatus
api-ms-win-core-libraryloader-l1-1-0.dll
LoadLibraryExA, FreeLibrary, GetProcAddress, DisableThreadLibraryCalls
api-ms-win-core-libraryloader-l1-1-1.dll
LoadLibraryExW, GetProcAddress, FreeLibrary, DisableThreadLibraryCalls
api-ms-win-core-localregistry-l1-1-0.dll
RegCloseKey, RegOpenKeyExW, RegQueryValueExW
api-ms-win-core-memory-l1-1-0.dll
CreateFileMappingW, UnmapViewOfFile, MapViewOfFile
api-ms-win-core-memory-l1-1-1.dll
MapViewOfFile, CreateFileMappingW, UnmapViewOfFile
api-ms-win-core-misc-l1-1-0.dll
Sleep
api-ms-win-core-processthreads-l1-1-0.dll
GetCurrentProcessId, TerminateProcess, GetCurrentThreadId, CreateProcessAsUserW, GetCurrentProcess
api-ms-win-core-processthreads-l1-1-1.dll
GetCurrentProcessId, TerminateProcess, GetCurrentThreadId, GetCurrentProcess, CreateProcessAsUserW
api-ms-win-core-profile-l1-1-0.dll
QueryPerformanceCounter
api-ms-win-core-registry-l1-1-0.dll
RegQueryValueExW, RegCloseKey, RegOpenKeyExW
api-ms-win-core-synch-l1-1-0.dll
WaitForSingleObject, ResetEvent, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, InitializeCriticalSection, CreateEventW, SetEvent
api-ms-win-core-synch-l1-2-0.dll
LeaveCriticalSection, Sleep, InitializeCriticalSection, DeleteCriticalSection, EnterCriticalSection, CreateEventW, ResetEvent, SetEvent, WaitForSingleObject
api-ms-win-core-sysinfo-l1-1-0.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-core-sysinfo-l1-2-0.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-core-threadpool-l1-1-0.dll
DeleteTimerQueueTimer, CreateTimerQueueTimer, UnregisterWaitEx
api-ms-win-core-threadpool-legacy-l1-1-0.dll
QueueUserWorkItem, UnregisterWaitEx, DeleteTimerQueueTimer, CreateTimerQueueTimer
api-ms-win-security-base-l1-1-0.dll
GetTokenInformation, GetLengthSid, InitializeAcl, AddAccessAllowedAce, FreeSid, SetSecurityDescriptorDacl, AllocateAndInitializeSid, InitializeSecurityDescriptor
api-ms-win-security-base-l1-2-0.dll
GetLengthSid, AddAccessAllowedAce, AllocateAndInitializeSid, InitializeSecurityDescriptor, FreeSid, SetSecurityDescriptorDacl, GetTokenInformation, InitializeAcl
api-ms-win-security-lsalookup-l1-1-1.dll
LookupAccountSidLocalW
kernel32.dll
QueueUserWorkItem, DelayLoadFailureHook, GetSystemPowerStatus, LoadLibraryW, CloseHandle, SetEvent, GetLastError, CreateEventW, UnregisterWaitEx, InitializeCriticalSection, GetProcessHeap, DeleteCriticalSection, ResetEvent, GetTickCount, DisableThreadLibraryCalls, FreeLibrary, GetProcAddress, WaitForSingleObject, DuplicateHandle, GetCurrentProcess, InterlockedIncrement, InterlockedDecrement, EnterCriticalSection, LeaveCriticalSection, HeapAlloc, HeapFree, InterlockedExchange, DeleteTimerQueueTimer, Sleep, CreateTimerQueueTimer, MapViewOfFile, CreateFileMappingW, UnmapViewOfFile, InterlockedCompareExchange, LoadLibraryA, QueryPerformanceCounter, GetCurrentThreadId, GetCurrentProcessId, GetSystemTimeAsFileTime, TerminateProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter
msvcrt.dll
DllMain
ntdll.dll
EtwGetTraceEnableFlags, EtwGetTraceEnableLevel, EtwGetTraceLoggerHandle, EtwRegisterTraceGuidsW, EtwUnregisterTraceGuids, EtwTraceMessage
ole32.dll
CoCreateInstance, CoRevokeClassObject, CoInitializeEx, CoUninitialize
rpcrt4.dll
RpcServerUseProtseqEpW, NdrClientCall2, RpcBindingFromStringBindingW, RpcBindingSetAuthInfoExW, RpcBindingFree, RpcServerUnregisterIf, RpcMgmtSetServerStackSize, RpcServerRegisterIfEx, I_RpcBindingIsClientLocal, NdrServerCall2, RpcServerRegisterIf3
sysntfy.dll
SysNotifyStartServer, SysNotifyStopServer
user32.dll
UnregisterDeviceNotification
wtsapi32.dll
WTSQueryUserToken
Export table
SensNotifyNetconEvent
SensNotifyRasEvent
SensNotifyWinlogonEvent
ServiceMain
SvchostPushServiceGlobals

sens.dll

System Event Notification Service (SENS) by Microsoft

Remove sens.dll
Version:   5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
MD5:   1ffbd0e61c14f7816875c3c88d7ce732
SHA1:   99bdec9aeeb340f6d22d718aa19f27e2d4a69890
SHA256:   464548be2dc73a9d769ce138d4ba5c020e7a87cb2e680f9bd00136327580112b
This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

sens.dll is loaded as dynamic link library that runs in the context of a process. The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). This version is installed on Windows XP.

DetailsDetails

File name:sens.dll
Publisher:Microsoft Corporation
Product name:System Event Notification Service (SENS)
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\sens.dll
Original name:sens.dll.mui
File version:5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
Product version:5.1.2600.2180
Size:38 KB (38,912 bytes)
Build date:8/4/2004 3:47 PM
Digital DNA
PE subsystem:Windows Console
File packed:No
Code language:Microsoft Visual C# / Basic .NET
.NET CLR:Yes
.NET NGENed:No
More details

BehaviorsBehaviors

Hosted services
Runs as a shared service under the Windows svcHost
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'
  • Shared name is 'SENS'

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 52.00%
Windows 7 Ultimate 28.50%
Windows 7 Professional 9.50%
Windows 7 Home Basic 2.50%
Windows 8 Pro 2.00%
Windows 7 Starter 1.50%
Windows Seven Black Edition 0.50%
Windows Vista Home Premium 0.50%
Windows 8 Enterprise Evaluation 0.50%
Windows 7 Enterprise 0.50%
Windows Se7en Titan 0.50%
Windows 8 Pro with Media Center 0.50%
Windows 8 0.50%
Windows Vista Business 0.50%

Distribution by countryDistribution by country

United States installs about 40.31% of System Event Notification Service (SENS).

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 25.00%
ASUS 16.67%
Hewlett-Packard 15.53%
Acer 12.88%
Toshiba 6.82%
Sony 6.06%
Lenovo 3.03%
Intel 3.03%
GIGABYTE 2.65%
Samsung 1.89%
Medion 1.52%
MSI 1.52%
Alienware 1.14%
Gateway 0.76%
NEC 0.76%
Compaq 0.76%
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