winlogon.exe definition, relationships, removal:

Microsoft Windows login process. Handles user logins. Active when the user presses CTRL+ALT+DEL. It is not possible to end this process using the Task Manager. Located in "C:\Winnt\System32\" on Windows NT/2000 and "C:\Windows\System32\" on Windows XP. File winlogon.exe is related to trojan Hazzer. File winlogon.exe is related to WinDir.winlogon. File winlogon.exe is related to NS Keylogger. File winlogon.exe is related to Captain Mnemo Pro. winlogon.exe is an executable file which primary purpose is to start a parasite or launch some of its components. Once executed, the winlogon.exe file runs a process that is responsible for the parasite's payload. winlogon.exe is a significant part of a dangerous threat, but it can also work on its own. DO NOT execute it!
The winlogon.exe file is installed and used by Suclove.
You are highly advised to scan the system, delete executable winlogon.exe and terminate all the processes it started.
In some cases a presence of winlogon.exe does not mean that your system is infected. The file may actually belong to some fully legitimate applications and therefore must stay intact. If you are in doubt, please scan the winlogon.exe file using you regular spyware remover or antivirus program. winlogon.exe is an executable file which primary purpose is to start a parasite or launch some of its components. Once executed, the winlogon.exe file runs a process that is responsible for the parasite's payload. winlogon.exe is a significant part of a dangerous threat, but it can also work on its own. DO NOT execute it!
The winlogon.exe file is installed and used by Ritdoor.b.
The winlogon.exe file usually runs the same named process. This process silently works in background and performs harmful actions. It remains active while winlogon.exe is present in the system. Removing the file will immediately terminate a process and prevent it from running later. That is why you have to manually delete the winlogon.exe file. If you cannot erase it, consider using recommended spyware removers, which will get rid of winlogon.exe and associated parasites for you.
Sometimes a presence of winlogon.exe does not indicate that your computer is infected. It can be an essential system file or a file installed by harmless legitimate software and therefore may not pose any threat to your privacy and the system. Although such cases are quite rare, you should thoroughly examine winlogon.exe before completely deleting or leaving it in the system. winlogon.exe is an executable file that is responsible for launching parasites, loading main components of malicious programs and running a destructive payload. It is a significant part of a dangerous parasite, but can also function as a stand-alone threat. DO NOT run this file!
The winlogon.exe file is installed and used by KillSec.
You have to delete the winlogon.exe file immediately after you have found it. The parasite will continue to violate your privacy and harm your computer unless winlogon.exe and all related objects will not be completely removed from the system. If you have difficulties erasing the file consider using an anti-spyware program.
Please note that the winlogon.exe file actually may be a fully legitimate part of the operating system or legitimate software. Often parasites use files with unsuspicious names, but malicious functionality. You should always carefully check the file before deleting it. It may not be related with malware, but can be required by your essential programs to work properly.