What is Sf.bin?

Please read below to decide for yourself whether the Sf.bin 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.

Click to Run a Free Scan for Sf.bin related errors

Sf.bin file information

The process known as avast! Emulation Engine belongs to software avast! Antivirus or avast! Free Antivirus or avast! Internet Security by AVAST Software (

Description: Sf.bin is not essential for the Windows OS and causes relatively few problems. The file Sf.bin is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 540,168 bytes (33% of all occurrences), 572,128 bytes or 478,720 bytes. 
The program is not visible. Sf.bin is not a Windows core file. The file is a Verisign signed file. The Sf.bin file is digitally signed. Sf.bin is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 43% dangerous.

Uninstalling this variant: In case you experience problems using Sf.bin, you can completely remove avast! Internet Security or avast! Free Antivirus (Control Panel ⇒ Uninstall a Program).

Recommended: Identify Sf.bin related errors

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

One user thinks Sf.bin is dangerous and recommends removing it.

Do you have additional information? Help other users!
What do you know about Sf.bin:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving Sf issues

A clean and tidy computer is the key requirement for avoiding problems with Sf. 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 Sf.bin 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

Sf.bin [all]