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Dangerous pcmstub.sys - Dangerous

Fix it immediately

pcmstub.sys
We suggest you to remove 6to4v32.dll from your computer as soon as possible.
6to4v32.dll is Trojan/Backdoor.
Kill the file 6to4v32.dll and remove 6to4v32.dll from Windows startup.

File: 612.exe (C:\sand-box\612.exe)

Classification:
Antivirus Version Last Update Result
Avast 4.8.1335.0 2009.07.09 -
AVG 8.5.0.387 2009.07.10 -
BitDefender 7.2 2009.07.10 -
Comodo 1605 2009.07.10 -
DrWeb 5.0.0.12182 2009.07.10 -
F-Secure 8.0.14470.0 2009.07.10 -
Kaspersky 7.0.0.125 2009.07.10 -
Microsoft 1.4803 2009.07.10 Trojan:Win32/Wimpixo.gen!A
NOD32 4232 2009.07.10 -
Symantec 1.4.4.12 2009.07.10 -

Additional information
File size: 50688 bytes
MD5 : 939c7470aa996a41b96a4980f6990361
SHA1 : ce2f530e441fa771fa332b247763b898afbc155f

Installation
When the program is executed, it creates the following registry subkeys and values:

----------------------------------
Keys added:9
----------------------------------
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000
HKLM\SYSTEM\CurrentControlSet\Services\6to4
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Parameters
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Security
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\Security

----------------------------------
Values added:29
----------------------------------
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\Service: "6to4"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\Legacy: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\ConfigFlags: 0x00000000
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\Class: "LegacyDriver"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\ClassGUID: "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\0000\DeviceDesc: "6to4"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_6TO4\NextInstance: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\Service: "pcmstub"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\Legacy: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\ConfigFlags: 0x00000000
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\Class: "LegacyDriver"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\ClassGUID: "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\0000\DeviceDesc: "pcmstub"
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCMSTUB\NextInstance: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Security\Security: 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 00 01 02 00 00 00 00 00 05 20 00 00 00 20 02 00 00 00 00 14 00 8D 01 02 00 01 01 00 00 00 00 00 05 0B 00 00 00 00 00 18 00 FD 01 02 00 01 02 00 00 00 00 00 05 20 00 00 00 23 02 00 00 01 01 00 00 00 00 00 05 12 00 00 00 01 01 00 00 00 00 00 05 12 00 00 00
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Parameters\ServiceDll: "C:\WINDOWS\system32\6to4v32.dll"
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Type: 0x00000120
HKLM\SYSTEM\CurrentControlSet\Services\6to4\Start: 0x00000002
HKLM\SYSTEM\CurrentControlSet\Services\6to4\ErrorControl: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Services\6to4\ImagePath: "%SystemRoot%\System32\svchost.exe -k netsvcs"
HKLM\SYSTEM\CurrentControlSet\Services\6to4\DisplayName: "6to4"
HKLM\SYSTEM\CurrentControlSet\Services\6to4\ObjectName: "LocalSystem"
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\Security\Security: 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 00 01 02 00 00 00 00 00 05 20 00 00 00 20 02 00 00 00 00 14 00 8D 01 02 00 01 01 00 00 00 00 00 05 0B 00 00 00 00 00 18 00 FD 01 02 00 01 02 00 00 00 00 00 05 20 00 00 00 23 02 00 00 01 01 00 00 00 00 00 05 12 00 00 00 01 01 00 00 00 00 00 05 12 00 00 00
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\Type: 0x00000001
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\Start: 0x00000003
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\ErrorControl: 0x00000000
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\ImagePath: "\??\C:\WINDOWS\system32\pcmstub.sys"
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\DisplayName: "pcmstub"
HKLM\SYSTEM\CurrentControlSet\Services\pcmstub\Description: "pcmstub"

----------------------------------
Values modified:0
----------------------------------

----------------------------------
Files added:2
----------------------------------
C:\WINDOWS\system32\6to4v32.dll
C:\WINDOWS\system32\pcmstub.sys

----------------------------------
Files deleted:1
----------------------------------
C:\sand-box\612.exe

----------------------------------
Files [attributes?] modified:0
----------------------------------

----------------------------------
Folders added:0
----------------------------------

----------------------------------
Folders deleted:0
----------------------------------

----------------------------------
Total changes:41
----------------------------------

-------------------------------------------------------------------------------------
Detected by RegRun Reanimator:

Item Name: 6to4
Author: Unknown
Related File: C:\WINDOWS\system32\6to4v32.dll
Type: Svchost DLLs

After first reboot detected by RegRun Reanimator:

Item Name: pcmstub
Author:
Related File: \??\C:\WINDOWS\system32\pcmstub.sys
Type: Services detected by Partizan

Removal Results: Success
Number of reboot: 2
-------------------------------------------------------------------------------------

Recommended software:
UnHackMe anti-rootkit and anti-malware
http://www.unhackme.com
RegRun Security Suite (Good choice for removal and protection)

Remove PCMSTUB.SYS.HTM now!

Install UnHackMe Install RegRun

Virus Problem? Google Redirects? Ads? Slow?

  1. First download the latest version UnHackMe: Download UnHackMe.
  2. Open the archive and start the unhackme_setup.exe.
  3. When the installation is over you will see the main UnHackMe screen.
  4. Click on the Advanced button and choose “Send report to the support center” in the popup menu. Follow the instructions. The report file (regrunlog.txt) will be saved on your Desktop.
  5. Go to the Support Center. Attach it to your ticket and click on the Browse button and then to the regrunlog.txt file. Don’t insert the report text directly into the message text! We won’t be able to analyse such a report. Describe your problem in detail. Add the screenshot, your antivirus log or suspicious files.

Constantly updated. Last update: February 5 2012

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