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Removal instructions for CheckBoan

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

What is CheckBoan?

The Malwarebytes research team has determined that CheckBoan 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 CheckBoan?

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

Posted Image

And you may see these warnings:

Posted Image

Posted Image

Posted Image

How did CheckBoan get on my computer?

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

How do I remove CheckBoan?

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 CheckBoan?

  • No, Malwarebytes' Anti-Malware removes CheckBoan completely.

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 CheckBoan rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.


Posted Image

Technical details for experts

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

O23 - Service: checkboan svc (checkboan) - Unknown owner - C:\Program Files\checkboan\checkboansvc.exe

Alterations made by the installer:
  File System
  ===============
    Adds the folder C:\Documents and Settings\{username}\Application Data\checkboan
      Adds the file checkboancnt.exe"="11:17 23/05/13 16384 bytes
    Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\üũ����
      Adds the file üũ����.lnk"="12:44 28/06/13 706 bytes
    Adds the folder C:\Program Files\checkboan
      Adds the file uninst.exe"="12:44 28/06/13 147127 bytes
      Adds the file prv.dat"="12:45 28/06/13 170 bytes
      Adds the file checkboansvc.exe"="08:21 27/05/13 98385 bytes
      Adds the file checkboanmon.exe"="11:23 23/05/13 331776 bytes
      Adds the file checkboan.exe"="11:26 23/05/13 3604480 bytes
      Adds the file checkboan.dll"="11:16 23/05/13 69632 bytes

  Registry
  ===============
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\checkboansvc.exe]
      "(Default)"="'C:\Program Files\checkboan\checkboansvc.exe'"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\checkboan]
      "Publisher"="'sksoftbank.'"
      "URLInfoAbout"="'http://www.checkboan.com'"
      "DisplayVersion"=""
      "DisplayIcon"="'C:\Program Files\checkboan\checkboansvc.exe'"
      "UninstallString"="'C:\Program Files\checkboan\uninst.exe'"
      "DisplayName"="'checkboan '"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_CHECKBOAN]
      "NextInstance"="1"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_CHECKBOAN\0000]
      "DeviceDesc"="'checkboan svc'"
      "ClassGUID"="'{8ECC055D-047F-11D1-A537-0000F8753ED1}'"
      "Class"="'LegacyDriver'"
      "ConfigFlags"="0"
      "Legacy"="1"
      "Service"="'checkboan'"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_CHECKBOAN\0000\Control]
      "ActiveService"="'checkboan'"
      "*NewlyCreated*"="0"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\checkboan]
      "Description"="'checkboan launcher'"
      "ObjectName"="'LocalSystem'"
      "DisplayName"="'checkboan svc'"
      "ImagePath"="C:\Program Files\checkboan\checkboansvc.exe."
      "ErrorControl"="1"
      "Start"="2"
      "Type"="16"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\checkboan\Enum]
      "NextInstance"="1"
      "Count"="1"
      "0"="'Root\LEGACY_CHECKBOAN\0000'"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\checkboan\Security]
      "Security"="................0...........................`......................................... ... .................."

Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org

Database version: v2013.06.28.02

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
{username} :: MBAM-D3E8C91ACC [administrator]

6/28/2013 12:58:03 PM
mbam-log-2013-06-28 (12-58-03).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 186027
Time elapsed: 56 second(s)

Memory Processes Detected: 1
C:\Program Files\checkboan\checkboan.exe (Rogue.CheckBoan) -> 1124 -> Delete on reboot.

Memory Modules Detected: 1
C:\Program Files\checkboan\checkboan.dll (Rogue.ClearBoan) -> Delete on reboot.

Registry Keys Detected: 3
HKLM\SYSTEM\CurrentControlSet\Services\checkboan (Rogue.DualBooster) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\checkboan (Rogue.CheckBoan) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\checkboansvc.exe (Rogue.CheckBoan) -> Quarantined and deleted successfully.

Registry Values Detected: 2
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\checkboan|URLInfoAbout (Rogue.CheckBoan) -> Data: http://www.checkboan.com -> Quarantined and deleted successfully.
HKLM\SYSTEM\CurrentControlSet\Services\checkboan|ImagePath (Rogue.CheckBoan) -> Data: C:\Program Files\checkboan\checkboansvc.exe -> Quarantined and deleted successfully.

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 1
C:\Program Files\checkboan (Rogue.CheckBoan) -> Delete on reboot.

Files Detected: 7
C:\Program Files\checkboan\checkboan.exe (Rogue.CheckBoan) -> Delete on reboot.
C:\Program Files\checkboan\checkboan.dll (Rogue.ClearBoan) -> Delete on reboot.
C:\Program Files\checkboan\checkboansvc.exe (Rogue.DualBooster) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\checkboan\checkboancnt.exe (Adware.Kraddare) -> Quarantined and deleted successfully.
C:\Program Files\checkboan\prv.dat (Rogue.CheckBoan) -> Quarantined and deleted successfully.
C:\Program Files\checkboan\checkboanmon.exe (Rogue.CheckBoan) -> Quarantined and deleted successfully.
C:\Program Files\checkboan\uninst.exe (Rogue.CheckBoan) -> Quarantined and deleted successfully.

(end)


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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