Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

16,1,172,0 1.41%
16,1,172,0 1.41%
16,1,140,0 1.41%
16,1,140,0 7.04%
16,0,470,0 1.41%
16,0,470,0 1.41%
15,6,238,0 40.85%
15,6,238,0 16.90%
15,6,238,0 8.45%
15,6,231,0 8.45%
15,6,225,0 1.41%
15,6,225,0 4.23%
15,0,272,0 1.41%
15,0,272,0 1.41%
15,0,272,0 1.41%
15,0,272,0 1.41%

Relationships


PE structurePE file structure

Show functions
Import table
advapi32.dll
RegDeleteKeyA, RegSetValueExW, TraceEvent, GetTraceLoggerHandle, GetTraceEnableLevel, GetTraceEnableFlags, RegisterTraceGuidsW, UnregisterTraceGuids, RegCreateKeyA, GetTokenInformation, AllocateAndInitializeSid, EqualSid, FreeSid, RegDeleteValueA, RegCreateKeyExA, RegEnumKeyExA, RegSetValueExA, RegOpenKeyExA, RegQueryValueExA, QueryServiceStatus, RegCloseKey, RegQueryValueExW, RegOpenKeyExW, QueryServiceConfigW, ChangeServiceConfigW, OpenServiceW, OpenSCManagerW, OpenProcessToken, CloseServiceHandle, RegDeleteKeyW, RegCreateKeyExW
kernel32.dll
GetLocalTime, GetTickCount, lstrlenA, SystemTimeToFileTime, WaitForSingleObject, lstrcatA, GetShortPathNameA, GetCurrentDirectoryW, GetModuleFileNameA, lstrcpyA, VerSetConditionMask, VerifyVersionInfoW, GlobalFree, GlobalAlloc, GetVersionExA, LoadLibraryA, GetSystemDirectoryA, Module32Next, Module32First, OpenProcess, FindFirstFileA, IsBadWritePtr, InterlockedExchange, SwitchToThread, ReleaseMutex, SizeofResource, FindClose, LoadResource, FindResourceW, FindResourceExW, OutputDebugStringW, GetFileAttributesW, GetCurrentThreadId, WriteFile, SetFilePointer, CreateFileW, CreateMutexW, SetLastError, CreateDirectoryW, WritePrivateProfileStringW, WritePrivateProfileStructW, GetEnvironmentVariableW, UnhandledExceptionFilter, TerminateProcess, DecodePointer, EncodePointer, GetProcessHeap, HeapSize, HeapReAlloc, HeapFree, HeapAlloc, HeapDestroy, FindNextFileW, FindFirstFileW, GetSystemDirectoryW, LoadLibraryW, LocalAlloc, LocalFree, WideCharToMultiByte, GetThreadLocale, GetLocaleInfoA, GetACP, MultiByteToWideChar, GetModuleFileNameW, CreateToolhelp32Snapshot, Module32FirstW, Module32NextW, InitializeCriticalSectionAndSpinCount, InterlockedDecrement, InterlockedIncrement, CreateThread, IsBadStringPtrW, IsBadReadPtr, GetUserDefaultLCID, LoadLibraryExW, lstrlenW, GetShortPathNameW, FreeLibrary, GetCurrentProcessId, GetTimeFormatW, GetDateFormatW, CloseHandle, GetLastError, IsProcessorFeaturePresent, RaiseException, DeleteCriticalSection, InitializeCriticalSection, VirtualQuery, InterlockedCompareExchange, Sleep, EnterCriticalSection, LeaveCriticalSection, GetVersionExW, GetModuleHandleW, GetProcAddress, GetCurrentProcess, SetUnhandledExceptionFilter, IsDebuggerPresent, QueryPerformanceCounter, GetSystemTimeAsFileTime, LockResource, MoveFileExW, SetFileAttributesW, DeleteFileW, RemoveDirectoryW, GetWindowsDirectoryA, GetConsoleOutputCP, WriteConsoleA, SetStdHandle, GetModuleHandleA, GetLocaleInfoW, GetConsoleMode, GetConsoleCP, GetStringTypeA, IsValidLocale, EnumSystemLocalesA, CreateFileA, GetFileSize, ReadFile, SetEnvironmentVariableA, GetPrivateProfileStringA, GetPrivateProfileStructA, WritePrivateProfileStructA, WriteConsoleW, FlushFileBuffers, CompareStringA, CompareStringW, GetEnvironmentStringsW, FreeEnvironmentStringsW, GetEnvironmentStrings, FreeEnvironmentStringsA, GetStartupInfoA, GetFileType, SetHandleCount, GetTimeZoneInformation, IsValidCodePage, GetOEMCP, GetStdHandle, VirtualFree, HeapCreate, ExitProcess, TlsFree, TlsSetValue, TlsAlloc, TlsGetValue, GetStringTypeW, LCMapStringW, LCMapStringA, GetCPInfo, RtlUnwind, GetCommandLineA, GetSystemInfo, VirtualAlloc, VirtualProtect, GetModuleHandleExW
mcvsocfg.dll
McVsoCfgGetObject
msvcp100.dll
DllMain
msvcr100.dll
DllMain
ole32.dll
CoMarshalInterThreadInterfaceInStream, CoGetInterfaceAndReleaseStream, CoCreateFreeThreadedMarshaler, CoUninitialize, CoGetClassObject, CoCreateInstance, CoSetProxyBlanket, CoInitializeEx
rpcrt4.dll
UuidToStringW, RpcStringFreeW
shell32.dll
SHGetFolderPathW
shlwapi.dll
SHDeleteKeyW
user32.dll
LoadIconW, wsprintfW, LoadBitmapW, PostMessageW, GetWindowLongW, DefWindowProcW, CreateWindowExW, SetWindowLongW, RegisterClassW, UnregisterClassW, LoadImageW, DestroyWindow, LoadStringW
version.dll
GetFileVersionInfoW, GetFileVersionInfoSizeW, VerQueryValueW
wintrust.dll
WinVerifyTrust
Export table
DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

McOasShm.dll

McAfee VirusScan by McAfee (Signed)

Remove McOasShm.dll
Version:   15,0,272,0
MD5:   ff55520c297160a5176fc6f313a9f561
SHA1:   e9e1dca9697429efd7e477a9bdb61d7e413b6aaa
SHA256:   7cad5eef636059e8211b700c34296a1df20d11d4e71151c5d2dc7511b8393cd3

What is McOasShm.dll?

McAfee VirusScan is an antivirus program created and maintained by McAfee Inc. The program is not available as a standalone package, but is included in the McAfee VirusScan Plus package or as part of McAfee Internet Security Suite.

About McOasShm.dll (from McAfee)

Essential security software so you can surf, shop, and socialize online while our anti-virus software, anti-malware, and firewall keep you safe. Relentless security software scans and blocks dangerous

Overview

McOasShm.dll is loaded as dynamic link library that runs in the context of a process. The file is digitally signed by McAfee which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:McOasShm.dll
Publisher:McAfee, Inc.
Product name:McAfee VirusScan
Description:McAfee VirusScan AV Shim
Typical file path:C:\Program Files\McAfee\VirusScan\McOasShm.dll
Original name:McOasShim.dll
File version:15,0,272,0
Product version:15,0,0,0
Size:347.98 KB (356,328 bytes)
Certificate
Issued to:McAfee
Authority (CA):VeriSign
Expiration date:Tuesday, December 31, 2013
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++ 10.0
.NET CLR:No
More details

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 43.66%
Windows 8 18.31%
Windows Vista Home Premium 8.45%
Windows 7 Ultimate 5.63%
Microsoft Windows XP 5.63%
Windows 8 Pro with Media Center 4.23%
Windows 7 Starter 4.23%
Windows 8 Single Language 2.82%
Windows 7 Professional 2.82%
Windows 8 Pro 1.41%
Windows 7 Home Basic 1.41%
Windows 7 Ultimate N 1.41%

Distribution by countryDistribution by country

United States installs about 66.20% of McAfee VirusScan.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 31.43%
Sony 17.14%
Hewlett-Packard 14.29%
Acer 12.86%
ASUS 11.43%
Toshiba 5.71%
Intel 2.86%
Gateway 2.86%
Alienware 1.43%
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