Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.1.7600.16385 (win7_rtm.090713-1255) 7.38%
6.1.7600.16385 (win7_rtm.090713-1255) 51.77%
6.1.7600.16385 (win7_rtm.090713-1255) 24.05%
6.1.7600.16385 (win7_rtm.090713-1255) 4.77%
6.1.7600.16385 (win7_rtm.090713-1255) 0.06%
6.1.7600.16385 (win7_rtm.090713-1255) 0.12%
6.1.7600.16385 (win7_rtm.090713-1255) 0.06%
6.1.7600.16385 (win7_rtm.090713-1255) 0.12%
6.0.6001.18000 (longhorn_rtm.080118-1840) 9.11%
6.0.6001.18000 (longhorn_rtm.080118-1840) 1.98%
6.0.6000.16386 (vista_rtm.061101-2205) 0.56%

Relationships

Parent process
Related files

lsm.exe

Local Session Manager Service by Microsoft

Remove lsm.exe
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   a5f91f730dbe5479f010bbcb4957818f
SHA1:   dfbca10b07969014968cfa46f270f19b3ba956d9
SHA256:   6f3d712922c3455ffc182d84d1f2b11218a284558cc84f07f2ba17ae03edc774
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is lsm.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

lsm.exe executes as a process under the SYSTEM account with extensive privileges (the system and the administrator accounts have the same file privileges) typically within the context of its parent wininit.exe (Windows Start-Up Application by Microsoft). This version is designed to run on Windows 7 and is compiled as a 64 bit program.

DetailsDetails

File name:lsm.exe
Publisher:Microsoft Corporation
Product name:Local Session Manager Service
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\lsm.exe
Original name:lsm.exe.mui
File version:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:335.5 KB (343,552 bytes)
Build date:5/23/2011 5:37 AM
Digital DNA
Entropy:6.506473
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00005533%
0.028634%
Kernel CPU:0.00000314%
0.013761%
User CPU:0.00005219%
0.014873%
Kernel CPU time:1,045 ms/min
100,923,805ms/min
Memory
Private memory:3.51 MB
21.59 MB
Private (maximum):2.16 MB
Private (minimum):1.69 MB
Non-paged memory:3.51 MB
21.59 MB
Virtual memory:22.84 MB
140.96 MB
Virtual memory (peak):24.34 MB
169.69 MB
Working set:2.14 MB
18.61 MB
Working set (peak):5.11 MB
37.95 MB
Resource allocations
Threads:10
12
Handles:209
600

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command line:C:\Windows\System32\lsm.exe
Owner:SYSTEM
Parent process:wininit.exe (Windows Start-Up Application by Microsoft)

ResourcesThreads

Averages
 
ntdll.dll
Total CPU:0.00000871%
0.272967%
Kernel CPU:0.00000871%
0.107585%
User CPU:0.00000000%
0.165382%
CPU cycles:78/sec
5,741,424/sec
Memory:1.67 MB
1.16 MB
lsm.exe (main module)
Total CPU:0.00000871%
Kernel CPU:0.00000871%
User CPU:0.00000000%
CPU cycles:90/sec
Memory:348 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 56.00%
Windows 7 Ultimate 26.00%
Windows 7 Professional 9.00%
Windows 7 Home Basic 3.50%
Windows Vista Home Premium 3.50%
Windows 7 Starter 1.00%
Windows Seven Black Edition 0.50%
Windows Vista Home Basic 0.50%

Distribution by countryDistribution by country

United States installs about 47.24% of Local Session Manager Service.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 26.42%
Hewlett-Packard 18.87%
ASUS 13.58%
Acer 12.83%
Toshiba 12.08%
Sony 3.77%
Lenovo 3.02%
Samsung 2.26%
GIGABYTE 2.26%
MSI 1.51%
Alienware 0.75%
Medion 0.75%
Intel 0.75%
Gateway 0.75%
Sahara 0.38%
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