What is zdl.sys?

zdl.sys is part of zdl and developed by zdl according to the zdl.sys version information.

zdl.sys's description is "zdl"

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

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

31 of the 41 anti-virus programs at VirusTotal detected the zdl.sys file. That's a 76% detection rate.

Scanner	Detection Name
AntiVir	RKIT/Koobface.A
Avast	Win32:Trojan-gen
AVG	BackDoor.Generic12.CCQB
BitDefender	Trojan.Koobface.408
Commtouch	W32/Koobface.JU
Comodo	UnclassifiedMalware
DrWeb	Trojan.Siggen.64481
Emsisoft	Riskware.WinNT.Koobface!IK
ESET-NOD32	Win32/Tinxy.BY
F-Prot	W32/Koobface.JU
F-Secure	Trojan.Koobface.408
Fortinet	W32/Koobface.A!tr.rkit
GData	Trojan.Koobface.408
Ikarus	VirTool.WinNT.Koobface
Jiangmin	Rootkit.Koobface.bp
K7AntiVirus	EmailWorm
Kaspersky	Rootkit.Win32.Koobface.dv
McAfee	Artemis!32DE3B0E8F25
McAfee-GW-Edition	Artemis!32DE3B0E8F25
Microsoft	VirTool:WinNT/Koobface.gen!F
Norman	W32/Koobface.HCC
nProtect	Trojan.Koobface.408
PCTools	Trojan.Startpage!rem
Sophos	Mal/KoobRK-A
Symantec	Trojan.Startpage
TheHacker	Trojan/Koobface.dv
TotalDefense	Win32/Koobface.TB
TrendMicro	TROJ_GEN.R47E1HA
TrendMicro-HouseCall	TROJ_GEN.R47E1HA
VIPRE	Trojan.Win32.Generic!BT
VirusBuster	Rootkit.Koobface!QmHTbHQaQYk

zdl.sys removal instructions

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

   

   

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

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

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

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