What is atstys.dll?

atstys.dll is usually located in the 'c:\users\%USERNAME%\appdata\local\' folder.

Some of the anti-virus scanners at VirusTotal detected atstys.dll.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

VirusTotal report

23 of the 62 anti-virus programs at VirusTotal detected the atstys.dll file. That's a 37% detection rate.

Scanner	Detection Name
Ad-Aware	Trojan.Proxy.MVA
AhnLab-V3	Malware/Win32.Generic.C1845986
Arcabit	Trojan.Proxy.MVA
AVG	Proxy.BUCS
Avira	TR/ATRAPS.Gen4
Baidu	Win32.Trojan-Proxy.Agent.h
BitDefender	Trojan.Proxy.MVA
CrowdStrike	malicious_confidence_100% (D)
DrWeb	Trojan.Proxy2.634
Emsisoft	Trojan.Proxy.MVA (B)
Endgame	malicious (high confidence)
ESET-NOD32	a variant of Win32/TrojanProxy.Agent.OAL
F-Secure	Trojan.Proxy.MVA
Fortinet	W32/Agent.OAV!tr
GData	Trojan.Proxy.MVA
Invincea	trojanproxy.win32.bunitu.k
Malwarebytes	Trojan.ProxyAgent
MicroWorld-eScan	Trojan.Proxy.MVA
Panda	Trj/Genetic.gen
Qihoo-360	HEUR/QVM40.1.0000.Malware.Gen
Rising	Malware.Generic.2!tfe (thunder:2:eONVpsJKuKM)
SentinelOne	static engine - malicious
Symantec	ML.Attribute.HighConfidence

atstys.dll removal instructions

The instructions below shows how to remove atstys.dll with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the atstys.dll file for removal, restart your computer and scan it again to verify that atstys.dll has been successfully removed. Here are the removal instructions in more detail:

1. Download and install FreeFixer: http://www.freefixer.com/download.html
2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.

   
3. When the scan is finished, locate atstys.dll in the scan result and tick the checkbox next to the atstys.dll file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate atstys.dll in the scan result.

   

   

   c:\users\%USERNAME%\appdata\local\atstys.dll

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the atstys.dll file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If atstys.dll still remains in the scan result, proceed with the next step. If atstys.dll is gone from the scan result you're done.
7. If atstys.dll still remains in the scan result, check its checkbox again in the scan result and click Fix.
8. Restart your computer.
9. Start FreeFixer and scan your computer again. Verify that atstys.dll no longer appear in the scan result.

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