What is yowjh.sys?

yowjh.sys is usually located in the 'c:\WINDOWS\system32\drivers\' folder.

Some of the anti-virus scanners at VirusTotal detected yowjh.sys.

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

35 of the 43 anti-virus programs at VirusTotal detected the yowjh.sys file. That's a 81% detection rate.

Scanner	Detection Name
AhnLab-V3	Win-Trojan/Rootkit.574464
AntiVir	TR/Rootkit.Gen
Avast	Win32:Rootkit-gen [Rtk]
AVG	BackDoor.Generic12.BGYJ
BitDefender	Backdoor.Generic.322700
Commtouch	W32/MalwareF.BOYP
Comodo	UnclassifiedMalware
DrWeb	Trojan.NtRootKit.12297
Emsisoft	Rootkit.Win32.Agent!IK
eSafe	Win32.GenRootkit.Heu
F-Prot	W32/MalwareF.BOYP
F-Secure	Backdoor.Generic.322700
Fortinet	W32/Agent.BFMJ!tr.rkit
GData	Backdoor.Generic.322700
Ikarus	Rootkit.Win32.Agent
Jiangmin	Rootkit.Agent.hwb
K7AntiVirus	Riskware
Kaspersky	Rootkit.Win32.Agent.bfmj
McAfee	Generic.dx!sei
McAfee-GW-Edition	Generic.dx!sei
Microsoft	Trojan:WinNT/Bubnix.gen!A
NOD32	a variant of Win32/Rootkit.Kryptik.BI
Norman	W32/Rootkit.BWDT
nProtect	Gen:Rootkit.Heur.JuW@C82Oln
Panda	Trj/Downloader.MDW
PCTools	Hacktool.Rootkit
Sophos	Mal/Bubnix-C
SUPERAntiSpyware	Trojan.RootKit/Gen
Symantec	Hacktool.Rootkit
TheHacker	Trojan/Kryptik.bi
TrendMicro	TROJ_AGENT.AVDW
TrendMicro-HouseCall	TROJ_AGENT.AVDW
VIPRE	Trojan.Win32.Generic!BT
ViRobot	Trojan.Win32.RT-Agent.574464
VirusBuster	Rootkit.Kryptik!vdQYmnOSEhU

yowjh.sys removal instructions

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

   

   

   c:\WINDOWS\system32\drivers\yowjh.sys

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

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

Filename variants

yowjh.sys may also use other filenames. The most common variants are listed below:

• blaqqqhw.sys
• dffvdj.sys
• filbvp.sys
• gonmh.sys
• izejbqx.sys
• nhgzj.sys
• nqlcv.sys
• pstfkag.sys
• pxhqdz.sys
• rrxmixut.sys

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