winlogon.exe is a fully legitimate process, which shouldn't be terminated. It's a Microsoft Windows login process, which is important for handling Windows functions during users' log ins. However, it is not possible to end this process using the Task Manager because it ends its work very quickly. winlogon.exe is typically located in “C:\Winnt\System32\” or “C:\Windows\System32\” subfolders.
There are many viruses that try to hide their presence on the system by using legitimate file names. According to experts, winlogon.exe is used by such cyber threats as trojan Hazzer, NS Keylogger, Captain Mnemo Pro, Suclove, Ritdoor.b, KillSec and many other cyber infections. As soon as one of these viruses infiltrates the system, it creates winlogon.exe file and starts using it for launching itself or one of its components. Sometimes winlogon.exe becomes a significant part of a dangerous threat, but it can also work in the background of the system and silently perform its own harmful actions.
If you noticed winlogon.exe and you have doubts about its trustworthiness, we highly recommend scanning the system with RegCure Pro and checking this file.