Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 4.72%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.06%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.22%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.01%
6.2.9200.16384 (win8_rtm.120725-1247) 0.86%
6.1.7601.17725 (win7sp1_gdr.111116-1503) 40.58%
6.1.7601.17725 (win7sp1_gdr.111116-1503) 18.70%
6.1.7600.16915 (win7_gdr.111116-1506) 3.54%
6.1.7600.16385 (win7_rtm.090713-1255) 8.16%
6.1.7600.16385 (win7_rtm.090713-1255) 3.92%
5.1.2600.5512 (xpsp.080413-2113) 12.71%
5.1.2600.5512 (xpsp.080413-2113) 0.91%
5.1.2600.5512 (xpsp.080413-2113) 0.65%
5.1.2600.5512 (xpsp.080413-2113) 0.06%
5.1.2600.5512 (xpsp.080413-2113) 0.59%
5.1.2600.5512 (xpsp.080413-2113) 0.01%
5.1.2600.5512 (xpsp.080413-2113) 0.01%
5.1.2600.5512 (xpsp.080413-2113) 0.38%
5.1.2600.5512 (xpsp.080413-2113) 0.06%
5.1.2600.5512 (xpsp.080413-2113) 0.01%
5.1.2600.5512 (xpsp.080413-2113) 0.17%
5.1.2600.5512 (xpsp.080413-2113) 0.27%
5.1.2600.5512 (xpsp.080413-2113) 0.06%
5.1.2600.5512 (xpsp.080413-2113) 0.27%
5.1.2600.5512 (xpsp.080413-2113) 0.06%
View more

lsass.exe

Local Security Authority Process by Microsoft Corporation (Signed)

Remove lsass.exe
Version:   5.1.2600.5512 (xpsp.080413-2113)
MD5:   99ae1390a271b02d752178df9e8442a3
SHA1:   488ca6b7fd164a96bfb429dcf72acd23bf70f202
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 XP 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:5.1.2600.5512 (xpsp.080413-2113)
Product version:5.1.2600.5512
Size:13 KB (13,312 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:0.00759194%
0.028634%
Kernel CPU:0.00506130%
0.013761%
User CPU:0.00253065%
0.014873%
Kernel CPU time:7,578 ms/min
100,923,805ms/min
Memory
Private memory:2.76 MB
21.59 MB
Private (maximum):2 MB
Private (minimum):564 KB
Non-paged memory:2.76 MB
21.59 MB
Virtual memory:40.72 MB
140.96 MB
Virtual memory (peak):44.45 MB
169.69 MB
Working set:1.86 MB
18.61 MB
Working set (peak):6.61 MB
37.95 MB
Resource allocations
Threads:20
12
Handles:329
600
GUI GDI count:5
103
GUI USER count:3
49

BehaviorsProcess properties

Integrety level:Undefined
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:winlogon.exe (Windows NT Logon Application by Microsoft)

ResourcesThreads

Averages
 
RPCRT4.dll
Total CPU:0.06008279%
0.272967%
Kernel CPU:0.04578610%
0.107585%
User CPU:0.01429669%
0.165382%
Memory:588 KB
1.16 MB
LSASRV.dll
Total CPU:0.01514922%
Kernel CPU:0.01514922%
User CPU:0.00000000%
Memory:716 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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