Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

4, 15, 00, 4725 0.20%
4, 14, 00, 4707 7.77%
4, 13, 00, 4693 1.79%
4, 12, 00, 4657 0.20%
4, 11, 00, 4619 1.20%
4, 10, 00, 4570 1.00%
4, 09, 00, 4471 1.20%
4, 08, 00, 4428 0.80%
4, 07, 00, 4369 5.58%
4, 06, 00, 4324 5.38%
4, 05, 00, 4250 3.19%
4, 04, 00, 4197 2.39%
4, 03, 00, 4151 3.98%
4, 02, 00, 4115 5.38%
4, 01, 00, 4093 5.18%
4, 00, 0, 4064 5.78%
4, 00, 0, 4064 0.20%
3, 28, 0, 1913 4.98%
3, 28, 0, 1913 0.20%
3, 27, 0, 1900 9.96%
3, 26, 0, 1888 7.37%
3, 26, 0, 1888 0.20%
3, 25, 0, 1872 6.37%
3, 24, 0, 1850 7.37%
3, 24, 0, 1850 0.20%
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Relationships

Child process
Related files

PE structurePE file structure

Show functions
Import table
advapi32.dll
GetLengthSid, OpenProcessToken, GetTokenInformation, CryptGenRandom, CryptReleaseContext, CryptAcquireContextA, LookupPrivilegeNameW, RegNotifyChangeKeyValue, MapGenericMask, DuplicateToken, GetFileSecurityW, AccessCheck, AdjustTokenPrivileges, LookupPrivilegeValueW, GetSidSubAuthority, GetSidSubAuthorityCount, AllocateAndInitializeSid, OpenThreadToken, EqualSid, FreeSid, LookupAccountSidW, RegCloseKey, CopySid, LookupAccountNameW, IsValidSid, GetSidIdentifierAuthority, RegUnLoadKeyW, RegLoadKeyW, OpenEventLogW, ClearEventLogW, CloseEventLog, GetUserNameW, RegEnumValueW, SetEntriesInAclW, SetNamedSecurityInfoW
comctl32.dll
ImageList_Destroy, ImageList_GetImageInfo, ImageList_SetIconSize, ImageList_Duplicate, ImageList_Replace, ImageList_Remove, _TrackMouseEvent, ImageList_GetIconSize, ImageList_Draw, ImageList_SetImageCount, ImageList_LoadImageW, ImageList_GetImageCount, ImageList_Create, ImageList_GetIcon, InitCommonControlsEx, ImageList_ReplaceIcon
crypt32.dll
CertCloseStore, CryptMsgClose, CryptDecodeObject, CertFindCertificateInStore, CertGetNameStringW, CertFreeCertificateContext, CryptQueryObject, CryptMsgGetParam
esent.dll
JetCloseTable, JetCloseDatabase, JetEndSession, JetTerm2, JetCreateInstance2, JetGetDatabaseFileInfo, JetInit2, JetBeginSession, JetCreateDatabase2, JetAttachDatabase2, JetOpenDatabase, JetOpenTable, JetSetCurrentIndex4, JetMove, JetEnumerateColumns, JetBeginTransaction, JetDelete, JetCommitTransaction, JetRollback, JetDeleteTable, JetSetSystemParameter
gdi32.dll
Ellipse, GetClipBox, GetDeviceCaps, GetStockObject, RestoreDC, SaveDC, CreatePatternBrush, CreateBitmap, PatBlt, CreateDIBSection, StrokeAndFillPath, EndPath, CreatePen, BeginPath, CreateRectRgn, LineTo, MoveToEx, CreateSolidBrush, ExcludeClipRect, SelectClipRgn, GetClipRgn, CombineRgn, SetBkColor, CreateRectRgnIndirect, StretchBlt, BitBlt, SetTextColor, SetBkMode, SelectObject, DeleteObject, CreateCompatibleBitmap, SetViewportOrgEx, CreateCompatibleDC, GetDIBColorTable, DeleteDC, PolylineTo, SetDIBColorTable
gdiplus.dll
GdiplusShutdown, GdiplusStartup, GdipCreateBitmapFromStream, GdipGetImagePixelFormat, GdipGetImageWidth, GdipGetImagePaletteSize, GdipGetImagePalette, GdipBitmapLockBits, GdipBitmapUnlockBits, GdipCreateBitmapFromScan0, GdipCloneImage, GdipAlloc, GdipFree, GdipDisposeImage, GdipGetImageGraphicsContext, GdipDeleteGraphics, GdipDrawImageI, GdipGetImageHeight
kernel32.dll
GetConsoleMode, GetConsoleCP, GetStartupInfoA, GetFileType, SetHandleCount, GetCommandLineA, GetEnvironmentStrings, FreeEnvironmentStringsA, GetOEMCP, GetStdHandle, LCMapStringA, RtlUnwind, CreateThread, ExitThread, GetLogicalDrives, ExitProcess, IsDebuggerPresent, UnhandledExceptionFilter, CreateWaitableTimerA, SetWaitableTimer, WaitForMultipleObjects, ResumeThread, TlsSetValue, OpenEventA, TlsGetValue, LoadResource, TlsAlloc, GetThreadLocale, GetLocaleInfoA, GetACP, VirtualAlloc, VirtualFree, IsProcessorFeaturePresent, LocalAlloc, SetFileTime, LockFileEx, HeapSize, UnmapViewOfFile, GetTimeFormatA, CreateFileA, FormatMessageA, HeapReAlloc, GetDiskFreeSpaceA, UnlockFileEx, GetTickCount, GetDateFormatA, LoadLibraryA, GetStringTypeA, GetUserDefaultLCID, EnumSystemLocalesA, IsValidLocale, SetStdHandle, WriteConsoleA, GetConsoleOutputCP, SetEnvironmentVariableA, SetLastError, EnterCriticalSection, RaiseException, LeaveCriticalSection, InterlockedExchange, FreeLibrary, InitializeCriticalSection, GetCommandLineW, DeleteCriticalSection, InterlockedIncrement, InterlockedDecrement, QueryPerformanceFrequency, QueryPerformanceCounter, MulDiv, WriteFile, FlushFileBuffers, LocalFree, GetVersion, GlobalLock, GlobalUnlock, GlobalAlloc, SetFilePointer, ReadFile, DeviceIoControl, SetFilePointerEx, GetCompressedFileSizeW, GetFullPathNameA, DeleteFileA, AreFileApisANSI, HeapValidate, LockFile, HeapCreate, GetTempPathA, UnlockFile, GetFileAttributesA, InterlockedCompareExchange, GetCurrentProcessId, HeapDestroy, lstrcmpA, SetEndOfFile, lstrlenA, MoveFileExW, SystemTimeToFileTime, GetSystemTime, SystemTimeToTzSpecificLocalTime, GetTimeZoneInformation, FileTimeToSystemTime, FileTimeToLocalFileTime, FindClose, GetUserDefaultLangID, SetErrorMode, Sleep, GetCurrentThread, GetSystemTimeAsFileTime, OutputDebugStringA, BackupSeek, GetLocalTime, GetModuleFileNameA, GetVersionExA, GlobalMemoryStatus, GetSystemInfo, BackupRead, GetFileSize, SetUnhandledExceptionFilter, IsBadReadPtr, VirtualProtect, GetModuleHandleA, CompareStringA, MapViewOfFile, LockResource, SizeofResource, GetLastError, GetCurrentThreadId, CreateEventA, WaitForSingleObject, GetCurrentProcess, ResetEvent, OpenProcess, FlushInstructionCache, HeapFree, GetProcessHeap, CloseHandle, HeapAlloc, SetEvent, TlsFree, TerminateProcess, ReleaseSemaphore, SetThreadPriority, GetProcessTimes, DllMain
netapi32.dll
NetLocalGroupGetMembers, NetApiBufferFree
ole32.dll
OleInitialize, CoTaskMemFree, CoTaskMemAlloc, OleUninitialize, ReleaseStgMedium, OleDuplicateData, RevokeDragDrop, CoTaskMemRealloc, DoDragDrop, CoInitializeSecurity, PropVariantClear, CoInitialize, CoUninitialize, CoSetProxyBlanket, CLSIDFromString, CoInitializeEx, CoCreateInstance, RegisterDragDrop, CreateStreamOnHGlobal
rpcrt4.dll
UuidFromStringA
shlwapi.dll
PathRemoveArgsW, PathUnquoteSpacesW, PathFindExtensionW, PathRemoveFileSpecW, SHStrDupW, PathRemoveExtensionA, PathRemoveExtensionW, PathAddExtensionW, PathStripToRootW, PathRemoveBackslashW, PathCompactPathW, PathIsDirectoryW, PathStripPathW, PathIsURLW, PathMatchSpecW, PathFileExistsW, PathAppendW, PathCreateFromUrlW, PathStripPathA, PathIsUNCW, PathIsRelativeW, PathFindFileNameW, StrRetToStrW, PathIsDirectoryEmptyW, PathCombineW, PathSkipRootW, PathGetDriveNumberW
user32.dll
IsWindow, SetWindowPos, EndDialog, GetParent, GetWindow, GetDesktopWindow, UnregisterClassA, SetClipboardData, CharLowerA, CloseClipboard, EmptyClipboard, OpenClipboard, ExitWindowsEx, WaitForInputIdle, MonitorFromWindow, CallNextHookEx, UnhookWindowsHookEx, GetWindowThreadProcessId, GetMenuItemID, SystemParametersInfoA, GetWindowPlacement, GetSystemMetrics, GetNextDlgTabItem, PostQuitMessage, IsZoomed, SetActiveWindow, LockWindowUpdate, SetMenuDefaultItem, GetComboBoxInfo, AdjustWindowRectEx, GetMenu, GetScrollPos, ScrollWindowEx, SetScrollInfo, SetScrollPos, GetScrollInfo, BringWindowToTop, GetCursorPos, GetMessagePos, KillTimer, UpdateWindow, SetRectEmpty, MoveWindow, DispatchMessageA, SetCursorPos, GetSysColorBrush, IsWindowEnabled, GetMessageA, TrackPopupMenu, IsChild, CreatePopupMenu, DestroyMenu, ChildWindowFromPoint, MsgWaitForMultipleObjects, EnableMenuItem, GetSystemMenu, GetDlgCtrlID, TranslateMessage, DestroyWindow, GetIconInfo, DrawEdge, SetTimer, DrawFocusRect, DestroyCursor, DestroyIcon, FrameRect, FillRect, ScreenToClient, CopyRect, GetFocus, GetKeyState, GetSysColor, OffsetRect, InflateRect, ReleaseDC, GetDC, GetWindowDC, SetCursor, PtInRect, EndPaint, SetRect, ReleaseCapture, BeginPaint, WindowFromPoint, InvalidateRect, ClientToScreen, RedrawWindow, SetCapture, GetCapture, GetActiveWindow, SetFocus, IsIconic, EnumWindows, SetForegroundWindow, OpenIcon, ShowWindow, IsWindowVisible, GetWindowRect, GetDlgItem, MapWindowPoints, GetClientRect, GetForegroundWindow, GetDlgItemInt, IsDlgButtonChecked, DrawFrameControl, SendMessageTimeoutW, EnumDisplaySettingsW, GetMonitorInfoW, LoadStringW, DrawTextExW, UnregisterClassW, CharLowerW, LoadBitmapW, GetDlgItemTextW, SetLayeredWindowAttributes, DeleteMenu
wintrust.dll
WinVerifyTrust
wtsapi32.dll
WTSFreeMemory, WTSQuerySessionInformationW

ccleaner.exe

CCleaner by Piriform Ltd (Signed)

Remove ccleaner.exe
Version:   4, 01, 00, 4093
MD5:   42bc01952e1ed3152dde0c0c9c2012d4
SHA1:   aae3fceb8dff8f7fb07976ce7d9207791f9e1000
SHA256:   947a08e8e541160c7a5cb2cac2b1c98b1883c249ef50ff95bcc12bb12bc30cb7

What is ccleaner.exe?

CCleaner (formerly Crap Cleaner), developed by Piriform, is a utility program used to clean potentially unwanted files and invalid Windows Registry entries from a computer. CCleaner supports the cleaning of temporary or potentially unwanted files left by certain programs. CCleaner can be employed to uninstall programs. In addition, CCleaner allows the alteration of start-up programs.

About ccleaner.exe (from Piriform Ltd)

CCleaner is our system optimization, privacy and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces

DetailsDetails

File name:ccleaner.exe
Publisher:Piriform Ltd
Product name:CCleaner
Typical file path:C:\Program Files\ccleaner\ccleaner.exe
File version:4, 01, 00, 4093
Size:3.38 MB (3,545,880 bytes)
Build date:4/19/2013 2:04 PM
Certificate
Issued to:Piriform Ltd
Authority (CA):VeriSign
Effective date:Tuesday, July 5, 2011
Expiration date:Thursday, August 22, 2013
Digital DNA
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
MAGIX AG
6% remove
MAGIX Audio Cleaning Lab features all the audio tools you need to get the absolute most out of your audio files! In just a few easy steps you can digitize, edit and optimize your audio files and recordings to achieve the sound you're looking for. Take advantage of first-class tools and easy-to-use program features to make your LPs, cassettes, ringtones, speech recordings and live audio sound better than you ever imagined! Enjoy your son...
Piriform
3% remove
CCleaner developed by Piriform, is a utility program used to clean potentially unwanted files and invalid Windows Registry entries from a computer. CCleaner supports the cleaning of temporary or potentially unwanted files left by certain programs along with browsing history, cookies, recycle bin, memory dumps, file fragments, log files, system caches, application data, autocomplete form history, and various other data. The program also ...

BehaviorsBehaviors

Scheduled tasks
  • The task 'CCleanerSkipUAC' runs in the path '\CCleanerSkipUAC'
  • Entry path '\CCleanerSkipUAC'
Startup files (user) run
Runs under the registry key 'HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'
  • 'ccleaner' → "C:\Program Files\CCleaner\CCleaner.exe" /AUTO
Windows firewall allowed programs
Exceptions allow programs to access to the Internet through an outbound connections
  • Firewall exception for 'C:\Program Files\CCleaner\CCleaner.exe'
  • Firewall exception for 'C:\Programmer\CCleaner\CCleaner.exe'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.01546960%
0.028634%
Kernel CPU:0.00591113%
0.013761%
User CPU:0.00955847%
0.014873%
Kernel CPU time:193,934 ms/min
100,923,805ms/min
CPU cycles:1,494,167/sec
17,470,203/sec
Context switches:31/sec
284/sec
Memory
Private memory:13.37 MB
21.59 MB
Private (maximum):19.9 MB
Private (minimum):8.04 MB
Non-paged memory:13.37 MB
21.59 MB
Virtual memory:101.18 MB
140.96 MB
Virtual memory (peak):108.93 MB
169.69 MB
Working set:19.83 MB
18.61 MB
Working set (peak):22.16 MB
37.95 MB
Page faults:15,690/min
2,039/min
I/O
I/O read transfer:535 Bytes/sec
1.02 MB/min
I/O read operations:18/sec
343/min
I/O write transfer:78.53 KB/sec
274.99 KB/min
I/O write operations:5/sec
227/min
I/O other transfer:3.3 KB/sec
448.09 KB/min
I/O other operations:146/sec
1,671/min
Resource allocations
Threads:2
12
Handles:190
600
GUI GDI count:186
103
GUI USER count:102
49

BehaviorsProcess properties

Integrety level:Undefined
Platform:32-bit
Command lines:
  • "C:\Program Files\ccleaner\ccleaner.exe"
  • "C:\Program Files\ccleaner\ccleaner.exe" /uac
Owner:User
Parent processes:

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 37.00%
Windows 7 Ultimate 17.00%
Windows 7 Professional 9.50%
Windows 8.1 7.00%
Windows 8 Pro 5.50%
Windows 8.1 Pro 5.00%
Windows 8 5.00%
Windows Vista Home Premium 2.50%
Windows 8 Single Language 2.00%
Windows 8.1 Single Language 1.50%
Windows 8 Enterprise N 1.00%
Windows 8.1 Pro with Media Center 1.00%
Windows Vista Home Basic 1.00%
Microsoft Windows XP 1.00%
Windows 8 Pro with Media Center 1.00%
Windows Vista Business 1.00%
Windows 7 Starter 0.50%
Windows 7 Home Basic 0.50%
Windows 8.1 Pro Preview 0.50%
Windows 8 Enterprise 0.50%

Distribution by countryDistribution by country

United States installs about 37.88% of CCleaner.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
ASUS 19.85%
Dell 18.38%
Hewlett-Packard 15.81%
Toshiba 12.50%
Acer 10.29%
Lenovo 8.09%
Sony 5.88%
Intel 3.68%
GIGABYTE 2.57%
Samsung 1.10%
Compaq 0.74%
MSI 0.74%
American Megatrends 0.37%
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