The genuine winlog.exe file is a software component of Salfeld Personal Security Tools by Salfeld.
This process runs in the background as part of Salfeld's Personal Security Toolset. It monitors internet usage and controls what the user sees based on preset control levels. A German company, Salfeld features offers three security products as part of the toolset: Win Control, User Control, and Child Control.
WinLog stands for Windows Logger
The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the winlog.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.
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Description: Winlog.exe is not essential for Windows and will often cause problems. The winlog.exe file is located in the C:\Windows\System32 folder.
Known file sizes on Windows 10/8/7/XP are 175,104 bytes (89% of all occurrences), 21,470 bytes and 9 more variants.
The file is not a Windows system file. There is no description of the program. The software starts upon Windows startup (see Registry key: MACHINE\RunServices, MACHINE\Run, Run, win.ini, User Shell Folders, Winlogon\Shell, DEFAULT\Run). The program is not visible. The file is located in the Windows folder, but it is not a Windows core file. Therefore the technical security rating is 77% dangerous, however you should also read the user reviews.
Recommended: Identify winlog.exe related errors
If winlog.exe is located in a subfolder of the user's profile folder, the security rating is 65% dangerous. The file size is 144,384 bytes (22% of all occurrences), 2,117,632 bytes and 19 more variants. The program is not visible. It is not a Windows core file. The program starts when Windows starts (see Registry key: MACHINE\RunServices, MACHINE\Run, Run, win.ini, User Shell Folders, Winlogon\Shell, DEFAULT\Run). The software has no file description. Winlog.exe is able to monitor applications.
If winlog.exe is located in a subfolder of "C:\Program Files", the security rating is 52% dangerous. The file size is 319,488 bytes (14% of all occurrences), 229,376 bytes and 5 more variants. Winlog.exe is not a Windows core file. There is no information about the author of the file. The program has no visible window. The application is loaded during the Windows boot process (see Registry key: MACHINE\RunServices, MACHINE\Run, Run, win.ini, User Shell Folders, Winlogon\Shell, DEFAULT\Run). Winlog.exe is able to monitor applications, record keyboard and mouse inputs, hide itself and manipulate other programs.
If winlog.exe is located in a subfolder of C:\Windows\System32, the security rating is 72% dangerous. The file size is 531,926 bytes (33% of all occurrences), 466,432 bytes or 270,848 bytes.
If winlog.exe is located in a subfolder of C:\Windows, the security rating is 52% dangerous. The file size is 319,488 bytes (50% of all occurrences) or 1,449,984 bytes.
If winlog.exe is located in the C:\Windows folder, the security rating is 49% dangerous. The file size is 464,384 bytes (50% of all occurrences) or 67,072 bytes.
If winlog.exe is located in a subfolder of C:\, the security rating is 36% dangerous. The file size is 923,657 bytes.
External information from Paul Collins:
Important: Some malware also uses the file name winlog.exe, for example Infostealer or W32.SillyFDC (detected by Symantec), and VirTool:Win32/VBInject.gen!CC or Backdoor:Win32/IRCbot.DL (detected by Microsoft). Therefore, you should check the winlog.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
A clean and tidy computer is the key requirement for avoiding problems with winlog. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the winlog.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.