Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 0.64%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.32%
6.2.9200.16384 (win8_rtm.120725-1247) 0.48%
6.2.9200.16384 (win8_rtm.120725-1247) 2.24%
6.1.7600.16385 (win7_rtm.090713-1255) 20.29%
6.1.7600.16385 (win7_rtm.090713-1255) 28.91%
6.1.7600.16385 (win7_rtm.090713-1255) 0.16%
6.0.6000.16386 (vista_rtm.061101-2205) 6.87%
6.0.6000.16386 (vista_rtm.061101-2205) 3.51%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.16%
5.2.3790.1830 (srv03_sp1_rtm.050324-1447) 0.16%
5.1.2600.5512 (xpsp.080413-2105) 27.32%
5.1.2600.5512 (xpsp.080413-2105) 0.16%
5.1.2600.5512 (xpsp.080413-2105) 0.16%
5.1.2600.3311 (xpsp.080212-0004) 0.16%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 8.47%

Relationships


PE structurePE file structure

Show functions
Import table
api-ms-win-core-path-l1-1-0.dll
PathCchAppend
imagehlp.dll
ImageDirectoryEntryToData
kernel32.dll
ExitProcess, GetCommandLineW, EncodePointer, GetNativeSystemInfo, SetFilePointer, SetErrorMode, FreeLibrary, CreateProcessW, LoadLibraryExW, GetCurrentProcess, SetProcessDEPPolicy, WaitForSingleObject, SetEvent, ReleaseSRWLockExclusive, AcquireSRWLockExclusive, GetSystemDirectoryW, WideCharToMultiByte, FormatMessageW, ReadFile, CreateFileW, ReleaseSRWLockShared, Wow64EnableWow64FsRedirection, GetLastError, GetProcAddress, LocalAlloc, IsWow64Process, CreateEventW, DecodePointer, HeapSetInformation, AcquireSRWLockShared, GetCurrentThreadId, CloseHandle, LocalFree, SetUnhandledExceptionFilter, GetStartupInfoW, InterlockedCompareExchange, InterlockedExchange, Sleep, QueryPerformanceCounter, GetCurrentProcessId, GetModuleHandleA, GetSystemTimeAsFileTime, GetTickCount, UnhandledExceptionFilter, TerminateProcess, QueryActCtxW, SearchPathW, SetSearchPathMode, GetModuleHandleW, CreateActCtxW, ActivateActCtx, ResolveDelayLoadedAPI, DelayLoadFailureHook, ReleaseActCtx, GetFileAttributesW, DeactivateActCtx, CompareStringW, lstrlenA, lstrlenW, LoadLibraryW, LoadLibraryA, LoadLibraryExA
msvcrt.dll
DllMain
ntdll.dll
NtOpenProcessToken, NtQueryInformationToken, NtSetInformationToken, NtClose, RtlNtStatusToDosError, RtlImageNtHeader, NtSetInformationProcess
shlwapi.dll
PathIsRelativeW, SHSetThreadRef
user32.dll
CreateWindowExW, SetWindowLongW, GetClassNameW, SetClassLongW, RegisterClassW, LoadIconW, GetClassLongW, DestroyWindow, GetMessageW, DefWindowProcW, GetWindow, CharNextW, GetWindowLongW, LoadCursorW, TranslateMessage, LoadStringW, PostThreadMessageW, MessageBoxW, DispatchMessageW

rundll32.exe

Windows host process (Rundll32) by Microsoft

Remove rundll32.exe
Version:   5.1.2600.5512 (xpsp.080413-2105)
MD5:   037b1e7798960e0420003d05bb577ee6
SHA1:   303a90020bf3beaf9acd0ea86487c853636a99a3
SHA256:   dee53d6d332dadd40c0ce34a425a6c0781f611765dcd4299d869f2b1ee80ae66
This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

rundll32.exe executes as a process with the local user's privileges. It is set to be run when the PC boots and the user logs into Windows (added to the Run registry key for the current user). It configures an autoplay handler withing explorer.exe named MSPhotoAcqHWEventHandler that will launch the program automatically. This version is installed on Windows XP and is compiled as a 32 bit program.

DetailsDetails

File name:rundll32.exe
Publisher:Microsoft Corporation
Product name:Windows host process (Rundll32)
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\rundll32.exe
Original name:RUNDLL32.EXE.MUI
File version:5.1.2600.5512 (xpsp.080413-2105)
Product version:5.1.2600.5512
Size:32.5 KB (33,280 bytes)
Digital DNA
PE subsystem:Windows GUI
Entropy:6.056689
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

BehaviorsBehaviors

Autoplay handlers
Runs under the registry key 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AutoplayHandlers\Handlers'
  • Handler name 'WinampMTPHandler'
  • Handler name 'PStarterVideoFilesArrival'
  • Handler name 'PStarterPicturesArrival'
  • Handler name 'PStarterMusicFilesArrival'
  • Handler name 'PStarterMixedCDArrival'
  • Handler name 'PStarterDVDBurningOnArrival'
  • Handler name 'PStarterBlankCDArrival'
  • Handler name 'Power2GoPlayCDAudioOnArrival'
  • Handler name 'PDirDVArrival'
  • Handler name 'P2GDVDBurningOnArrival'
  • Handler name 'P2GCDBurningOnArrival'
  • Handler name 'muveeVideoOnArrival'
  • Handler name 'muveeVideoCameraArrivalCaptureWizard'
  • Handler name 'MSShowPicturesOnArrival'
  • Handler name 'MSSHAudioDevHandler'
  • Handler name 'MSRipCDAudioOnArrival'
  • Handler name 'MediaCapture9VideoCamera'
  • Handler name 'MSSdRunBackup'
  • Handler name 'MSSdConfigBackup'
  • Handler name 'MSPromptEachTimeNoContent'
  • Handler name 'MSPromptEachTime'
  • Handler name 'MSPhotoAcqHWEventHandler'
Approved shell extensions
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
  • CLSID: {9D687A4C-1404-41ef-A089-883B6FBECDE6}
Scheduled tasks
  • The job 'MyTurboPC.com Registration3' runs daily in the path '\MyTurboPC.com Registration3'
  • The job 'EasyShare Registration Task' runs daily in the path '\EasyShare Registration Task'
  • The task 'PC Utility Kit Registration3' runs daily in the path '\PC Utility Kit Registration3'
  • The task 'PC Unleashed Online Registration3' runs daily in the path '\PC Unleashed Online Registration3'
  • The task 'SparkTrust Registration3' runs daily in the path '\SparkTrust Registration3'
  • The job 'ParetoLogic Registration' runs daily in the path '\ParetoLogic Registration'
  • The task 'SpeedMaxPc Registration3' runs daily in the path '\SpeedMaxPc Registration3'
  • The job 'ParetoLogic Registration3' runs daily in the path '\ParetoLogic Registration3'
  • The task 'SpeedyPC Registration3' runs daily in the path '\SpeedyPC Registration3'
  • Entry path '\{DF592278-9ED5-4925-9117-7AD619F1AAA8}'
  • Entry path '\{D6488D52-E069-4A39-816E-D1598D5449A4}'
  • Entry path '\{C8536D19-006C-4D7C-B8C4-5A4B5160C5ED}'
  • Entry path '\{BBA662F7-038F-467B-8873-EB604B5242A2}'
  • Entry path '\{B86A1F70-22DB-44E2-850A-04DB8130A83A}'
  • Entry path '\{A9F6F357-C7F2-493B-9CA6-BA8096AAF4DF}'
  • Entry path '\{8A560E02-3FEE-4E3F-BD2F-E30E081ACB04}'
  • Entry path '\{898C3889-ACDA-439E-91B0-36187A01B19B}'
  • Entry path '\{0FF765F0-1DE5-461B-9F9B-936450ABA203}'
  • Entry path '\{0420CBAC-4E40-4938-9955-4C7C8595BC42}'
  • Entry path '\{00BAB955-E3A4-40EE-A715-E595C89513B0}'
  • Entry path '\EasyShare Registration Task'
  • Entry path '\MyTurboPC.com Registration3'
Startup files (user) run
Runs under the registry key 'HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'
  • 'uprkr' → rundll32.exe ",RetrieveKey
User start menu folder
Shortcut pointer placed in '%appdata%\Microsoft\Windows\Start Menu'
  • Shortcut to 'rundll32.exe'
  • Shortcut to 'lsass.exe'
Startup files (all users) run
Runs under the registry key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'
  • 'CTMasterOnOffMonitor' → Rundll32.exe CTMWatch.dll StartCTMasterOnOffWatch

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.07870574%
0.028634%
Kernel CPU:0.02404534%
0.013761%
User CPU:0.05466040%
0.014873%
Kernel CPU time:1,155 ms/min
100,923,805ms/min
Context switches:6/sec
284/sec
Memory
Private memory:3.85 MB
21.59 MB
Private (maximum):8.02 MB
Private (minimum):5.52 MB
Non-paged memory:3.85 MB
21.59 MB
Virtual memory:44.75 MB
140.96 MB
Virtual memory (peak):47.09 MB
169.69 MB
Working set:6.3 MB
18.61 MB
Working set (peak):8.14 MB
37.95 MB
Page faults:404,753/min
2,039/min
I/O
I/O read transfer:98.71 KB/sec
1.02 MB/min
I/O read operations:25/sec
343/min
I/O write transfer:126 Bytes/sec
274.99 KB/min
I/O write operations:2/sec
227/min
I/O other transfer:32.07 KB/sec
448.09 KB/min
I/O other operations:448/sec
1,671/min
Resource allocations
Threads:3
12
Handles:122
600
GUI GDI count:35
103
GUI USER count:31
49

BehaviorsProcess properties

Platform:32-bit
Command lines:
  • "C:\Windows\System32\rundll32.exe" /d C:\Windows\System32\shell32.dll,control_rundll sysdm.cpl
  • "C:\Windows\System32\rundll32.exe" cm108.cpl,cmictrlwnd
  • "C:\Windows\System32\rundll32.exe" cmicnfg.cpl,cmictrlwnd
  • rundll32.exe ykx32mpcoinst,servicestartproc
  • rundll32.exe newdev.dll,clientsideinstall \\.\pipe\pnp_device_install_pipe_0.{e99514f3-63b8-4ee8-8726-206c1e8bf384}
Owner:User
Parent processes:

ResourcesThreads

Averages
 
rundll32.exe (main module)
Total CPU:0.05215443%
0.272967%
Kernel CPU:0.03323586%
0.107585%
User CPU:0.01891857%
0.165382%
Context switches:4/sec
79/sec
Memory:44 KB
1.16 MB
ntdll.dll
Total CPU:0.01125545%
Kernel CPU:0.00695568%
User CPU:0.00429977%
Memory:712 KB

Common loaded modules

These are modules that are typiclaly loaded within the context of this process.

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 36.50%
Windows 7 Home Premium 25.00%
Windows Vista™ Home Premium 9.00%
Windows Vista Ultimate 7.00%
Windows Vista Home Premium 4.50%
Windows 7 Professional 3.00%
Microsoft Windows 7 Professional 2.50%
Windows 8.1 2.00%
Windows 8 Pro 2.00%
Windows Vista Home Basic 1.50%
Windows 8 1.50%
Windows 8.1 Pro 1.00%
Windows 7 Home Basic 1.00%
Windows 7 Starter 1.00%
Windows 8 Single Language 0.50%
Windows 8 Enterprise 0.50%
Windows 8 Pro with Media Center 0.50%
Windows 7 Home Premium N 0.50%
Windows Server 2008 Standard 0.50%

Distribution by countryDistribution by country

United States installs about 50.56% of Windows host process (Rundll32).

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 21.36%
Acer 18.45%
Toshiba 13.59%
Dell 13.59%
Sony 9.71%
Lenovo 9.71%
Alienware 4.85%
GIGABYTE 4.85%
ASUS 1.94%
Gateway 1.94%
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