What is 00000004.@?

00000004.@ is usually located in the 'c:\Windows\Installer\{191cd1bd-2cfc-84e9-fb8c-6f66bc4d7526}\U\' folder.

Some of the anti-virus scanners at VirusTotal detected 00000004.@.

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

34 of the 49 anti-virus programs at VirusTotal detected the 00000004.@ file. That's a 69% detection rate.

Scanner	Detection Name
Ad-Aware	Trojan.Sirefef.GY
Agnitum	Trojan.Agent!a+lDXeqf3nI
AhnLab-V3	Trojan/Win64.ZAccess
AntiVir	TR/ZAccess.H
Avast	Win64:Sirefef-J [Rtk]
AVG	Generic28.CBQW
Baidu-International	Trojan.Win32.Agent.40
BitDefender	Trojan.Sirefef.GY
Bkav	W32.Clod4e1.Trojan.c5c9
CAT-QuickHeal	Trojan.Sirefef
Commtouch	W64/Trojan.RXAO-9126
Comodo	UnclassifiedMalware
DrWeb	BackDoor.Maxplus.12027
ESET-NOD32	Win64/Conedex.C
F-Secure	Trojan.Sirefef.GY
Fortinet	W32/ZAccess.CA
GData	Trojan.Sirefef.GY
Ikarus	Trojan.Win64.Sirefef
K7AntiVirus	Riskware ( 0015e4f01 )
K7GW	Riskware ( 0015e4f01 )
McAfee	ZeroAccess
McAfee-GW-Edition	ZeroAccess
Microsoft	Trojan:Win64/Sirefef
MicroWorld-eScan	Trojan.Sirefef.GY
NANO-Antivirus	Trojan.Win64.ZAccessCA.zjlfj
Norman	ZAccess.JYW
Panda	Trj/Sirefef.D
Sophos	Mal/ZAccess-CA
Symantec	Trojan.Zeroaccess.B
TheHacker	Trojan/Conedex.c
TotalDefense	Win64/ZeroAccess.Y
TrendMicro	TROJ64_SIREFEF.UV
TrendMicro-HouseCall	TROJ64_SIREFEF.UV
VIPRE	Trojan.Win64.Sirefef.ca (v)

00000004.@ removal instructions

The instructions below shows how to remove 00000004.@ with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the 00000004.@ file for removal, restart your computer and scan it again to verify that 00000004.@ 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 00000004.@ in the scan result and tick the checkbox next to the 00000004.@ 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 00000004.@ in the scan result.

   

   

   c:\Windows\Installer\{191cd1bd-2cfc-84e9-fb8c-6f66bc4d7526}\U\00000004.@

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the 00000004.@ file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If 00000004.@ still remains in the scan result, proceed with the next step. If 00000004.@ is gone from the scan result you're done.
7. If 00000004.@ 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 00000004.@ no longer appear in the scan result.

Folder name variants

00000004.@ may also be located in other folders than c:\Windows\Installer\{191cd1bd-2cfc-84e9-fb8c-6f66bc4d7526}\U\. The most common variants are listed below:

• c:\Windows\Installer\{997b5ae7-b4a3-3a8b-cb2a-9ffb7bbcbd4b}\U\
• c:\Windows\Installer\{b263f627-426d-f366-1aed-79047fc4218b}\U\

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