What is sfagent.exe?

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 sfagent.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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Sfagent.exe file information

Windows Task Manager with sfagent
Sfagent.exe process in Windows Task Manager

The process known as SPAMfighter Agent belongs to software SPAMfighter or SPAMfighter Client by SPAMfighter ApS (

Description: Sfagent.exe is not essential for the Windows OS and causes relatively few problems. The sfagent.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 326,792 bytes (22% of all occurrences), 321,160 bytes and 10 more variants. 
There is an icon for this program on the taskbar next to the clock. The program can be removed using the Control Panel's Add\Remove programs applet. The sfagent.exe file is not a Windows core file. The file is digitally signed. Sfagent.exe is able to monitor applications and record keyboard and mouse inputs. Therefore the technical security rating is 17% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with sfagent.exe, you can contact Customer Service, see if there is a newer version or uninstall SPAMfighter or SPAMfighter Client software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify sfagent.exe related errors

Important: Some malware camouflages itself as sfagent.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the sfagent.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.


User Comments

Diese Datei gehört zu dem Programm Spamfighter
  Stefan   (further information)
might belong to SpamFighter
  Olly   (further information)
used it before on my old computer

Summary: Average user rating of sfagent.exe: based on 3 votes with 3 user comments. 2 users think sfagent.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous.

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Best practices for resolving sfagent issues

A clean and tidy computer is the key requirement for avoiding problems with sfagent. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the sfagent.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

sfagent.exe [all]