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What is lsm.exe?

Part of Local Session Manager Service by Microsoft

What is it?

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.
(lsm.exe is a system file that is installed with Windows)
Download Boost and enjoy your PC. Speed up Local Session Manager Service and optimize your PC.

How does lsm.exe run?

Process - lsm.exe is an instance of a running program. This program executes under the SYSTEM account within Windows with extensive privileges on the local computer, and acts as the computer on the network. lsm.exe is executed by the process wininit.exe (Windows Start-Up Application by Microsoft).

Community

What is the community is seeing?What is the community is doing?
About 0.3% of all Boost users have the lsm.exe process running.Of the 0.3% of lsm.exe users, less than 1% have disabled it.
How resource intensive is lsm.exe?
Comparison based on the average resource utilization across all programs.
0.00028% CPU2782.4%
Average CPU utilization across all programs is 0.00001%.
          2.97 MB RAM13.8%
Average private memory utilization across all programs is 21.53 MB.
 1 /min0.0%
Average I/O read and write operations for all programs is 2,253 per minute.
          18 context switches/sec18.0%
Average context switches for all programs is 100 per second.
Typical file (disk image) location:
C:\Windows\System32\lsm.exe

Are there other versions of Local Session Manager Service?

lsm.exe - version 6.1.7600.16385 (win7_rtm.090713-1255)
lsm.exe - version 6.0.6001.18000 (longhorn_rtm.080118-1840)
lsm.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)

What modules are loaded?

A module is a dynamic link library (DLL) or an executable file that is loaded into the process. Below is a list of non-system modules that are loaded by Local Session Manager Service.
lmiinit.dll (LogMeIn by LogMeIn)
guard64.dll (COMODO Internet Security by Comodo Security Solutions)

What else is related?

msvcp60.dll (Microsoft (R) Visual C++ by Microsoft)
rstrui.exe (System Restore Application by Microsoft)
dismhost.exe (Dism Host Servicing Process by Microsoft)
bcmsqlstartupsvc.exe (Business Contact Manager for Microsoft Outlook 2010 by Microsoft)
msonsext.dll (Microsoft Office by Microsoft)
encwcbar.dll (Microsoft Encarta by Microsoft)
workfolderssvc.dll (Microsoft® Work Folders Service by Microsoft)
appreadiness.dll (AppReadiness by Microsoft)
ole32.dll (Microsoft OLE for Windows by Microsoft)
microsoft.biztalk.brmacontrols.dll (Microsoft (R) BizTalk (R) Server 2010 by Microsoft)
ssoconfig.exe (Microsoft® Enterprise Single Sign-On by Microsoft)
webfarmservice.exe (Microsoft IIS Extensions by Microsoft)
tfsjobagent.exe (Microsoft® Visual Studio® 2010 by Microsoft)
tfsbuildservicehost.exe (Microsoft® Visual Studio® 2010 by Microsoft)
ruleengineupdateservice.exe (Microsoft (R) BizTalk (R) Server 2010 by Microsoft)
entsso.exe (Microsoft® Enterprise Single Sign-On by Microsoft)
btsntsvc.exe (Microsoft (R) BizTalk (R) Server 2010 by Microsoft)
drmstor.dll (Microsoft® Windows Media Services by Microsoft)
themeui.dll (API de tema do Windows by Microsoft)
ntbackup.exe (Utilitário de cópia de segurança do Windows by Microsoft)
browseui.dll (Biblioteca da interface de utilizador do browser da shell by Microsoft)
shdocvw.dll (Objecto Doc da shell e biblioteca de controlos by Microsoft)

What Windows OS versions does this run on?

Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)
Microsoft Windows 7 Professional (6.1.7601.65536)
Microsoft Windows XP (6.1.7601.65536)
Windows 7 Enterprise (6.1.7601.65536)
Windows 7 Home Basic (6.1.7601.65536)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Home Premium N (6.1.7601.65536)
Windows 7 Professional (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: lsm.exe
Publisher: Microsoft Corporation (verified)
Name: Local Session Manager Service
Description: Microsoft® Windows® Operating System
Version: 6.1.7600.16385 (win7_rtm.090713-1255)
Product version: 6.1.7600.16385
Size: 335 KB
Original file name: lsm.exe.mui
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0006272988%
Privileged CPU: 0.0003490574%
User CPU: 0.00027824137457%
Privileged CPU time: 7022637.65 ms
Privileged CPU time /min: 3,122 ms
CPU cycle count: 214,080,885
CPU cycle count /min: 10,237,954
Context switches /sec: 18
Memory utilization averages
Committed memory: 21.59 MB
Peak committed memory: 23.06 MB
Paged memory: 2.97 MB
Peak paged memory: 3.74 MB
Paged system memory: 36.52 KB
Non-paged system memory: 8.68 KB
Working set memory: 3.72 MB
Peak working set memory: 4.9 MB
Min working set memory: 3.15 MB
Private memory: 2.97 MB
Page faults: 13,868
Page faults /min: 11
Process I/O averages
Total read operations: 1
Total read transfer: 5.79 KB
Total write operations: 1
Write operations /min: 1
Total write transfer: 3.98 KB
Write transfer /min: 2 Bytes
Total other operations: 42,197
Other operations /min: 11
Total other transfer: 377.55 KB
Other Transfer /min: 109 Bytes
Resources
Handle count average: 182
Thread count average: 10
Thread resource averages
ntdll.dll
ntdll.dll
ntdll.dll
ntdll.dll
ntdll.dll
ole32.dll

Process details

Runs as (owner): System
Integrety level: System
Windows platform: 64-bit
Parent Process
wininit.exe (Windows Start-Up Application by Microsoft)
Child Processes
csrss.exe (Client Server Runtime Process by Microsoft)
wininit.exe (Windows Start-Up Application by Microsoft)
Process Commands
C:\Windows\system32\lsm.exe
C:\Windows\System32\lsm.exe

Image hashes

MD5: 9662ee182644511439f1c53745dc1c88
SHA-1: 6766228926eb48344451737c61d0e05dbe390591
SHA-256: d205b2c163e78ab42a5d67d7664ef6b75ea0374ff0924467d624f9db0611f0ad

PE image details

Langauge*: Microsoft Visual C++
File entropy: 6.50647
File packed: No
Import Table
advapi32.dll
api-ms-win-core-errorhandling-l1-1-0.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l1-1-0.dll
api-ms-win-core-interlocked-l1-1-0.dll
api-ms-win-core-libraryloader-l1-1-0.dll
api-ms-win-core-localregistry-l1-1-0.dll
api-ms-win-core-misc-l1-1-0.dll
api-ms-win-core-processthreads-l1-1-0.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-synch-l1-1-0.dll
api-ms-win-core-sysinfo-l1-1-0.dll
api-ms-win-core-threadpool-l1-1-0.dll
api-ms-win-security-base-l1-1-0.dll
api-ms-win-service-management-l1-1-0.dll
api-ms-win-service-management-l2-1-0.dll
api-ms-win-service-winsvc-l1-1-0.dll
kernel32.dll
msvcrt.dll
ntdll.dll
rpcrt4.dll
sysntfy.dll
wmsgapi.dll
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