What is chknprep.dll?

chknprep.dll is usually located in the 'C:\WINDOWS\system32\' folder.

Some of the anti-virus scanners at VirusTotal detected chknprep.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

33 of the 43 anti-virus programs at VirusTotal detected the chknprep.dll file. That's a 77% detection rate.

Scanner	Detection Name
AhnLab-V3	Backdoor/Win32.Papras
AntiVir	TR/Spy.Browser.I
Antiy-AVL	Backdoor/Win32.Papras.gen
Authentium	W32/Trojan2.NJFD
Avast	Win32:Rootkit-gen
Avast5	Win32:Rootkit-gen
AVG	BackDoor.Generic13.AMX
Comodo	UnclassifiedMalware
DrWeb	Trojan.PWS.Grabber.67
Emsisoft	Backdoor.Win32.Papras!IK
F-Prot	W32/Trojan2.NJFD
Fortinet	W32/Papras.NY!tr.bdr
GData	Win32:Rootkit-gen
Ikarus	Backdoor.Win32.Papras
Jiangmin	Backdoor/Papras.jx
K7AntiVirus	Backdoor
Kaspersky	Backdoor.Win32.Papras.ny
McAfee	Generic.dx!tqa
McAfee-GW-Edition	Generic.dx!tqa
Microsoft	TrojanSpy:Win32/Ursnif
NOD32	Win32/PSW.Papras.AW
nProtect	Backdoor/W32.Papras.47104.C
Panda	Trj/CI.A
PCTools	Trojan.Gen
Rising	Trojan.Win32.Generic.522A5852
Sophos	Troj/Spyurs-Gen
Sunbelt	Trojan.Win32.Generic!BT
Symantec	Trojan.Gen
TheHacker	Backdoor/Papras.ny
TrendMicro	TROJ_GEN.R2FE1IA
TrendMicro-HouseCall	TROJ_GEN.R2FE1IA
VBA32	Backdoor.Papras.ny
VirusBuster	Trojan.PWS.Papras.ABB

chknprep.dll removal instructions

The instructions below shows how to remove chknprep.dll with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the chknprep.dll file for removal, restart your computer and scan it again to verify that chknprep.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 chknprep.dll in the scan result and tick the checkbox next to the chknprep.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 chknprep.dll in the scan result.

   

   

   C:\WINDOWS\system32\chknprep.dll

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

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If chknprep.dll still remains in the scan result, proceed with the next step. If chknprep.dll is gone from the scan result you're done.
7. If chknprep.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 chknprep.dll no longer appear in the scan result.

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