lsass.exe is a application which is most likely NOT a virus or malware. So, if lsass.exe is on your laptop or desktop computer, it is most likely ok, and will NOT be a cause for concern. Even if your PC is clean, we still advise you to purchase a well-known antivirus with a good track record, in order to defend your PC against threats.
Usually, the default filename and directory where the program is stored is
C:\Windows\System32\lsass.exe.
The MD5 checksum for this executable is 3df3b76b19da92a8adc01ff38560282d.
This application is registered as a Windows service. This means it operates on your system in background, usually without showing anything to you. Most Windows services are legit programs, which perform useful features to other applications or to Windows in general.
lsass.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This is a x64 executable. It runs using the full capacity of nowadays' computer processors.
lsass.exe is digitally signed. Today the large majority of virus-free software applications are digitally signed.
The digital signature found in lsass.exe is valid. This is excellent.
Digital certificate name: Microsoft Windows Publisher
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have an uninstall command set up in registry.