Some users have wondered if lsm.exe is genuine or malicious after discovering that the procedure has a constant presence in Task Manager and consumes a large amount of system resources..
Although it is very likely that the procedure is truly legitimate, Users are advised to conduct the next investigation to confirm that it is not a virus infection.
What is lsm.exe?
The original lsm.exe executable is an absolutely legitimate procedure and is actually a core procedure of the Windows system. Lsm stands for Local Session Management Service. This key procedure is issued by default in Windows 7, Windows 8 and Windows 10.
The purpose of the genuine lsm.exe procedure is to manage all the connections associated with a server acting as a terminal on the hosted machine.
Even though the procedure is often associated with browser crashes and performance conflicts in games, should be seen as a critical component. Without him, your system will not be able to send interactive user sessions.
It should be noted that the lsm.exe procedure has gained relevance since Windows Vista. In Windows Vista and all later versions, the procedure is not only responsible for managing the connections of the local sessions, but in addition to managing the virtualized sessions of the terminal server.
Potential security threat?
Although the chances of dealing with a malicious executable are slim, there are at least three recognized virus variations / Trojans given the same name as lsm.exe to avoid detection by security threats:
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Empaquetado.Win32.Krap.hm
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Worm.Win32.VBNA.b
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Back door: Win32 / Slingup.A
Note: Most of these malware variations will end up using your PC's resources to mine Bitcoin or other cryptos.
To make sure it is not a virus infection, let's investigate the executable for malicious activity.
To do this, open Task Manager (Ctrl + Shift + Esc) and locate the lsm.exe procedure in the Processes tab. Then, right-click on the lsm.exe procedure and choose Properties. On the Properties screen of lsm.exe, expand the Digital Signatures tab and check if the Signers Name corresponds to Microsoft Windows Publisher. If so, you can be sure that the file is not malicious.
Note: A great gift that will possibly tell you if the procedure is malicious or not the name. While the original lsm.exe has a l (L) small in the name, the bogus executable (malicious) will have an I (i) capital letter.
If there are no signatories in the list of signatures, we will have to conduct additional research. To do this, right-click the lsm.exe procedure and choose Open file location. If the revealed location is other than C: Windows N-System32, most likely a malicious executable. You can confirm or confirm your suspicions by uploading the newly discovered executable to VirusTotal for analysis..
Note: A common location for malicious executables posing as legitimate Ism.exe is C: Users ~ * Your name * ~ AppData ~ Roaming lsm.exe. 
If the scan reveals suspicious activity, We strongly suggest you scan your system with a powerful malware remover like Security Scanner or Malwarebytes. If you are not sure how to do this, follow our detailed post (here) on using Malwarebytes to erase any trace of malware from your system.
Should I delete lsm.exe?
As we have already established later, the lsm.exe procedure is often used for remote configuration of different aspects associated with the terminal session. Deleting the lsm.exe executable or preventing the procedure from running is very likely to have devastating consequences for the stability of your system..
So, you should never delete the original lsm.exe file from your system.
In the event that you observe high CPU and RAM usage generated by lsm.exe procedure and have ensured that the procedure is legitimate, just reboot your system and usage should improve on next startup.
