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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 0.4% of all Boost users have the lsm.exe process running.Of the 0.4% 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.
0.00067% CPU6681.7%
Average CPU utilization across all programs is 0.00001%.
     1.55 MB RAM7.2%
Average private memory utilization across all programs is 21.53 MB.
 2 /min0.1%
Average I/O read and write operations for all programs is 2,253 per minute.
          14 context switches/sec14.0%
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.
shell32.dll (Windows Shell Common Dll by Microsoft)
protector.dll (by Performersoft LLC)

What else is related?

themeui.dll (Windows-Design-API by Microsoft)
sstext3d.scr (Direct3D-Textbildschirmschoner by Microsoft)
photoviewershim.dll (Windows Live Photo Gallery by Microsoft)
logonui.exe (Windows-Anmeldebenutzeroberfläche by Microsoft)
msxml4a.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4r.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4.dll (Microsoft(R) MSXML 4.0 SP 2 by Microsoft)
freecell.exe (Entertainment Pack FreeCell Game by Microsoft)
wiaacmgr.exe (Windows Picture Acquisition Wizard by Microsoft)
prodaiintl1033.dll (ProdAddInIntl by Microsoft)
mimectl.dll (Microsoft® Exchange by Microsoft)
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)

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)
Windows 7 Ultimate (6.1.7600.65536)
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 Professional (6.1.7601.65536)
Windows 7 Starter (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)
Windows 7 Ultimate | KKD Windows 7 V.3 (6.1.7601.65536)
Windows 7 Ultimate N (6.1.7601.65536)
Windows Seven Black Edition (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: 261.5 KB
Original file name: lsm.exe.mui
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0017599336%
Privileged CPU: 0.0010917595%
User CPU: 0.00066817405716%
Privileged CPU time: 2823404.12 ms
Privileged CPU time /min: 628 ms
CPU cycle count: 412,384,457
CPU cycle count /min: 7,214,812
Context switches /sec: 14
Memory utilization averages
Committed memory: 18.13 MB
Peak committed memory: 20.1 MB
Paged memory: 1.55 MB
Peak paged memory: 3.19 MB
Paged system memory: 30.39 KB
Non-paged system memory: 4.21 KB
Working set memory: 2.34 MB
Peak working set memory: 3.45 MB
Min working set memory: 2.03 MB
Private memory: 1.55 MB
Page faults: 3,415
Page faults /min: 7
Process I/O averages
Total read operations: 27
Read operations /min: 1
Total read transfer: 116.11 KB
Read transfer /min: 2.2 KB
Total write operations: 4
Write operations /min: 1
Total write transfer: 1.94 KB
Write transfer /min: 0 Bytes
Total other operations: 140
Other operations /min: 1
Total other transfer: 1.75 KB
Other Transfer /min: 5 Bytes
Resources
Handle count average: 173
Thread count average: 11
Thread resource averages
ntdll.dll
ntdll.dll
ntdll.dll

Process details

Runs as (owner): System
Integrety level: System
Windows platform: 32-bit
Parent Process
wininit.exe (Windows Start-Up Application by Microsoft)
Process Commands
C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
C:\Windows\System32\lsm.exe

Image hashes

MD5: 8aea9a37c1a3565a204d37c5e72ab791
SHA-1: e16beae2233832547bac23fbd82d5321cfc5d645
SHA-256: 939903f93ff37525a6c4b5cba29cdeee6d6055c42d605e80ae787f2a76f9870e

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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