lsass.exe
What Is LSASS.EXE Listed In Windows Task Manager?
Sunday, 24 January 2010 | Jason SlaterEarlier today someone called me and asked me they had the file LSASS.EXE running in Task Manager and is it OK to remove it. It’s an interesting question, as it has been the subject of a Microsoft Security Bulletin, but the upshot is that it’s a required file used by Windows but can sometimes get hijacked by malware impersonating it in Task Manager.