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Removal instructions for MyPCcheck

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What is MyPCcheck?

The Malwarebytes research team has determined that MyPCcheck is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with MyPCcheck?

This is how the main screen of the rogue application looks:

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You will find these icons on your desktop and in your taskbar:

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And see these warnings:

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How did MyPCcheck get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was downloaded from their site.

How do I remove MyPCcheck?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.
  • Please download Malwarebytes' Anti-Malware to your desktop.
  • Double-click mbam-setup.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:

    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
  • If an update is found, it will download and install the latest version.
  • Once the program has loaded, select Perform quick scan, then click Scan.
  • When the scan is complete, click OK, then Show Results to view the results.
  • Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
  • When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of MyPCcheck?

  • The shortcut called Ǿüũ on the desktop can be deleted if it belonged to the rogue. Compare the icon with the one posted above if you are not sure.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the MyPCcheck rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

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Technical details for experts

Signs in a HijackThis log:
C:\Program Files\MyPCCheck\MyPCCheck.exe

O4 - HKLM\..\Run: [MyPCCheck] "C:\Program Files\MyPCCheck\MyPCCheck.exe" /pffhrl

Alterations made by the installer:

  File System
    In the existing folder C:\Documents and Settings\All Users\Desktop
      Adds the file �����Ǿ�ũ.lnk"="13:26 30/01/11 778 bytes
    Adds the folder C:\Documents and Settings\All Users\Start Menu\Programs\�����Ǿ�ũ
      Adds the file Ȩ������.lnk"="13:26 30/01/11 328 bytes
      Adds the file �����Ǿ�ũ.lnk"="13:26 30/01/11 790 bytes
      Adds the file ���̼���.lnk"="13:26 30/01/11 384 bytes
    Adds the folder C:\Program Files\MyPCCheck
      Adds the file v.flag"="03:58 13/05/10 1 bytes
      Adds the file MyPCCheck.exe"="03:56 13/05/10 11047056 bytes
      Adds the file mpc_uninst.exe"="03:56 13/05/10 11047056 bytes
      Adds the file mpcsysroll.baf"="09:18 02/09/09 22036 bytes
      Adds the file mpcroll.baf"="02:08 03/09/09 23688 bytes
      Adds the file icon.ico"="06:12 17/03/10 17542 bytes
    Adds the folder C:\Program Files\MyPCCheck\log
      Adds the file 20110130.mpl"="13:27 30/01/11 101 bytes

      "MyPCCheck"="'"C:\Program Files\MyPCCheck\MyPCCheck.exe" /pffhrl'"
      "UninstallString"="'C:\Program Files\MyPCCheck\mpc_uninst.exe'"
14:32 30-1-2011

Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware

Database version: 5639

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

1/30/2011 1:36:36 PM
mbam-log-2011-01-30 (13-36-36).txt

Scan type: Quick scan
Objects scanned: 123106
Time elapsed: 2 minute(s), 31 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 1
Folders Infected: 2
Files Infected: 8

Memory Processes Infected:
c:\program files\mypccheck\mypccheck.exe (Rogue.MyPCCheck) -> 172 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyPCCheck (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\MyPCCheck (Rogue.MyPCCheck) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyPCCheck (Rogue.MyPCCheck) -> Value: MyPCCheck -> Quarantined and deleted successfully.

Folders Infected:
c:\program files\mypccheck (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\log (Rogue.MyPCCheck) -> Quarantined and deleted successfully.

Files Infected:
c:\documents and settings\{username}\Desktop\mpc_gsetup.exe (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\mpcroll.baf (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\icon.ico (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\mpcsysroll.baf (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\mpc_uninst.exe (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\mypccheck.exe (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\v.flag (Rogue.MyPCCheck) -> Quarantined and deleted successfully.
c:\program files\mypccheck\log\20110130.mpl (Rogue.MyPCCheck) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.
We use different ways of protecting your computer(s):
  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention
Save yourself the hassle and get protected.
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