Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 4.10%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.05%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.19%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.01%
6.2.9200.16864 (win8_gdr.140309-1509) 0.66%
6.2.9200.16420 (win8_gdr.120919-1813) 1.54%
6.2.9200.16420 (win8_gdr.120919-1813) 11.84%
6.2.9200.16384 (win8_rtm.120725-1247) 0.75%
6.2.9200.16384 (win8_rtm.120725-1247) 0.67%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.05%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.05%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.01%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.05%
6.1.7601.22465 (win7sp1_ldr.130924-1532) 0.01%
6.1.7601.22121 (win7sp1_ldr.120927-0414) 0.01%
6.1.7601.22119 (win7sp1_ldr.120926-0334) 0.01%
6.1.7601.22119 (win7sp1_ldr.120926-0334) 0.01%
6.1.7601.22099 (win7sp1_ldr.120824-0334) 0.01%
6.1.7601.22099 (win7sp1_ldr.120824-0334) 0.01%
6.1.7601.22010 (win7sp1_ldr.120601-1503) 0.12%
6.1.7601.22010 (win7sp1_ldr.120601-1503) 0.06%
6.1.7601.18443 (win7sp1_gdr.140411-1533) 0.01%
6.1.7601.18443 (win7sp1_gdr.140411-1533) 4.40%
6.1.7601.18270 (win7sp1_gdr.130924-1532) 1.90%
6.1.7601.18270 (win7sp1_gdr.130924-1532) 0.33%
View more

Relationships

PE structurePE file structure
Show functions
Import table
api-ms-win-core-crt-l1-1-0.dll
memcpy, wcstol, _wcsicmp, wcschr, strcpy_s, _vsnprintf_s, memset, _except_handler4_common
api-ms-win-core-crt-l2-1-0.dll
_initterm, _initterm_e, exit
api-ms-win-core-errorhandling-l1-1-0.dll
SetUnhandledExceptionFilter, SetErrorMode, SetLastError, UnhandledExceptionFilter, GetLastError
api-ms-win-core-errorhandling-l1-1-1.dll
GetLastError, SetUnhandledExceptionFilter, SetErrorMode, SetLastError, UnhandledExceptionFilter
api-ms-win-core-handle-l1-1-0.dll
CloseHandle
api-ms-win-core-heap-obsolete-l1-1-0.dll
LocalFree, LocalAlloc
api-ms-win-core-interlocked-l1-1-0.dll
InterlockedCompareExchange, InterlockedExchange
api-ms-win-core-libraryloader-l1-1-0.dll
GetProcAddress, LoadLibraryExW, GetModuleHandleA
api-ms-win-core-libraryloader-l1-1-1.dll
GetProcAddress, LoadLibraryExW
api-ms-win-core-libraryloader-l1-2-0.dll
GetProcAddress, LoadLibraryExW
api-ms-win-core-localregistry-l1-1-0.dll
RegQueryValueExW, RegOpenKeyExW, RegCloseKey
api-ms-win-core-misc-l1-1-0.dll
LocalAlloc, LocalFree, Sleep
api-ms-win-core-processenvironment-l1-1-0.dll
GetEnvironmentVariableW, SetEnvironmentVariableW
api-ms-win-core-processenvironment-l1-2-0.dll
SetEnvironmentVariableW, GetEnvironmentVariableW
api-ms-win-core-processthreads-l1-1-0.dll
OpenProcessToken, GetCurrentProcess, ExitThread, CreateThread, GetCurrentThreadId, GetCurrentProcessId, TerminateProcess
api-ms-win-core-processthreads-l1-1-1.dll
TerminateProcess, GetCurrentThreadId, GetCurrentProcessId, CreateThread, ExitThread, OpenProcessToken, GetCurrentProcess
api-ms-win-core-processthreads-l1-1-2.dll
TerminateProcess, GetCurrentThreadId, GetCurrentProcessId, CreateThread, ExitThread, GetCurrentProcess, OpenProcessToken
api-ms-win-core-profile-l1-1-0.dll
QueryPerformanceCounter
api-ms-win-core-registry-l1-1-0.dll
RegCloseKey, RegQueryValueExW, RegOpenKeyExW, RegEnumKeyExW
api-ms-win-core-synch-l1-1-0.dll
SetEvent, OpenEventW, CreateEventW
api-ms-win-core-synch-l1-2-0.dll
OpenEventW, CreateEventW, SetEvent
api-ms-win-core-sysinfo-l1-1-0.dll
GetSystemTimeAsFileTime, GetTickCount
api-ms-win-core-sysinfo-l1-2-0.dll
GetSystemTimeAsFileTime, GetTickCount
api-ms-win-core-sysinfo-l1-2-1.dll
GetTickCount, GetSystemTimeAsFileTime
api-ms-win-security-base-l1-1-0.dll
GetTokenInformation
api-ms-win-security-base-l1-2-0.dll
GetTokenInformation
msvcrt.dll
DllMain
ntdll.dll
NtCreatePort, NtConnectPort, NtListenPort, NtAcceptConnectPort, NtCompleteConnectPort, NtReplyWaitReceivePort, RtlLengthRequiredSid, RtlInitializeSid, RtlSubAuthoritySid, NtSetSecurityObject, NtOpenEvent, RtlFreeHeap, RtlAllocateHeap, RtlNtStatusToDosError, RtlSetProcessIsCritical, NtSetInformationProcess, RtlInitUnicodeString, NtOpenFile, NtDeviceIoControlFile, NtSetInformationFile, RtlCreateSecurityDescriptor, RtlLengthSid, RtlSetOwnerSecurityDescriptor, RtlCreateAcl, RtlAddAccessAllowedAce, RtlSetDaclSecurityDescriptor, RtlAllocateAndInitializeSid, RtlAddMandatoryAce, RtlSetSaclSecurityDescriptor, RtlMakeSelfRelativeSD, RtlUnhandledExceptionFilter, DbgPrintEx, NtRequestWaitReplyPort, RtlCreateAndSetSD, RtlFreeSid, RtlAcquireResourceShared, RtlReleaseResource, RtlAcquireResourceExclusive, RtlInitializeResource, NtClose
rpcrt4.dll
I_RpcMapWin32Status, RpcServerRegisterIf2, RpcServerListen, RpcServerUseProtseqEpW, NdrServerCall2, RpcServerRegisterIf3
sspisrv.dll
SspiSrvInitialize, SspiSrvClientCallback
Export table
LsaGetInterface
LsaRegisterExtension
LsaRegisterInterface

lsass.exe

Local Security Authority Process by Microsoft Corporation (Signed)

Remove lsass.exe
Version:   6.2.9200.16420 (win8_gdr.120919-1813)
MD5:   0118d8c2b0b04f6b6fe620eadda53449
SHA1:   60c13a749d90f22145a3c6e47a4c4b9f46b4871b
SHA256:   00d1d9ea3150f83d99da7e31ea96872cb18f7092a58e75763714cd546b8d23a7
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is lsass.exe?

Local Security Authority Subsystem Service (LSASS), is a process in Microsoft Windows operating systems that is responsible for enforcing the security policy on the system. It verifies users logging on to a Windows computer or server, handles password changes, and creates access tokens.

Overview

lsass.exe runs as a service under the name Titkosított fájlrendszer (EFS) (KeyIso) with extensive SYSTEM privileges (full administrator access) as a shared service. The file is digitally signed by Microsoft Corporation. This version is installed on Windows 8 and is compiled as a 32 bit program.

DetailsDetails

File name:lsass.exe
Publisher:Microsoft Corporation
Product name:Local Security Authority Process
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\lsass.exe
File version:6.2.9200.16420 (win8_gdr.120919-1813)
Product version:6.2.9200.16420
Size:22.5 KB (23,040 bytes)
Certificate
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Expiration date:Friday, June 13, 2014
Digital DNA
Entropy:5.983062
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

BehaviorsBehaviors

Services
Runs under 'SYSTEM\CurrentControlSet\Services' as a shared service by the Service Host (svchost.exe)

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00291140%
0.028634%
Kernel CPU:0.00166721%
0.013761%
User CPU:0.00124418%
0.014873%
Kernel CPU time:55,319,982 ms/min
100,923,805ms/min
CPU cycles:1,210,564/sec
17,470,203/sec
Context switches:70/sec
284/sec
Memory
Private memory:3.35 MB
21.59 MB
Private (maximum):7.9 MB
Private (minimum):5.67 MB
Non-paged memory:3.35 MB
21.59 MB
Virtual memory:32.5 MB
140.96 MB
Virtual memory (peak):33.4 MB
169.69 MB
Working set:6.52 MB
18.61 MB
Working set (peak):8.6 MB
37.95 MB
Page faults:16,342/min
2,039/min
I/O
I/O read transfer:119 Bytes/sec
1.02 MB/min
I/O read operations:2/sec
343/min
I/O write transfer:653 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:4.24 KB/sec
448.09 KB/min
I/O other operations:34/sec
1,671/min
Resource allocations
Threads:7
12
Handles:923
600

BehaviorsProcess properties

Integrety level:System
Platform:32-bit
Command line:C:\Windows\System32\lsass.exe
Owner:SYSTEM
Windows Service
Service name:KeyIso
Display name:Titkosított fájlrendszer (EFS)
Description:“Durch den Start dieses Diensts wird anderen Diensten signalisiert, dass die Sicherheitskontenverwaltung (SAM) bereit ist, Anforderungen anzunehmen. Wenn Sie diesen Dienst deaktivieren, wird verhindert, dass andere Dienste im System benachrichtigt werden, wenn die Sicherheitskontenverwaltung bereit ist. Dies kann wiederum dazu führen, dass diese Dienste nicht korrekt gestartet werden. Dieser Dienst”
Type:Win32ShareProcess
Parent process:wininit.exe (Windows Start-Up Application by Microsoft)

ResourcesThreads

Averages
 
ntdll.dll
Total CPU:0.04420607%
0.272967%
Kernel CPU:0.01691146%
0.107585%
User CPU:0.02729461%
0.165382%
CPU cycles:1,180,795/sec
5,741,424/sec
Context switches:10/sec
79/sec
Memory:1.4 MB
1.16 MB
lsass.exe (main module)
Total CPU:0.00000355%
Kernel CPU:0.00000000%
User CPU:0.00000355%
CPU cycles:122/sec
Memory:36 KB
lsasrv.dll
Total CPU:0.00000314%
Kernel CPU:0.00000000%
User CPU:0.00000314%
CPU cycles:20/sec
Memory:1012 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 8.1 34.50%
Windows 8.1 Pro 27.00%
Windows 8.1 Single Language 12.00%
Windows 7 Ultimate 10.50%
Windows 7 Home Premium 7.00%
Windows 8.1 Pro with Media Center 3.00%
Windows 8.1 N 3.00%
Windows 8.1 Enterprise Evaluation 3.00%

Distribution by countryDistribution by country

United States installs about 39.50% of Local Security Authority Process.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
ASUS 30.23%
Dell 24.03%
Acer 17.83%
Lenovo 13.95%
Hewlett-Packard 6.98%
Toshiba 4.65%
Alienware 2.33%
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