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Removal instructions for DiskBoan

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What is DiskBoan?

The Malwarebytes research team has determined that DiskBoan 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 DiskBoan?

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


You will find this icon in your taskbar:


And see these warnings:




How did DiskBoan get on my computer?

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

How do I remove DiskBoan?

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 DiskBoan?

  • No, Malwarebytes Anti-Malware removes DiskBoan 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 DiskBoan rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.


Technical details for experts

Signs in a HijackThis log:

C:\Program Files\diskboan\diskboan.exe

O23 - Service: diskboan SERVICE (diskboan SVC) - Unknown owner - C:\Documents and Settings\{username}\Application Data\diskboan\diskboansvc.exe

Alterations made by the installer:

File System
Adds the folder C:\Documents and Settings\{username}\Application Data\diskboan
Adds the file diskboansvc.exe"="08:44 06/09/12 20480 bytes
Adds the file diskboancnt.exe"="08:43 06/09/12 16384 bytes
Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\��ũ����
Adds the file ��ũ����.lnk"="09:22 15/09/12 694 bytes
Adds the folder C:\Program Files\diskboan
Adds the file uninst.exe"="09:22 15/09/12 147075 bytes
Adds the file prv.dat"="09:22 15/09/12 170 bytes
Adds the file diskboanmon.exe"="10:06 06/09/12 364544 bytes
Adds the file diskboan.exe"="10:00 06/09/12 8183808 bytes
Adds the file diskboan.dll"="05:07 02/05/12 69632 bytes

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\diskboansvc.exe]
"(Default)"="'C:\Documents and Settings\{username}\Application Data\diskboan\diskboansvc.exe'"
"DisplayIcon"="'C:\Documents and Settings\{username}\Application Data\diskboan\diskboansvc.exe'"
"UninstallString"="'C:\Program Files\diskboan\uninst.exe'"
"DisplayName"="'diskboan '"
"DeviceDesc"="'diskboan SERVICE'"
"Service"="'diskboan SVC'"
"ActiveService"="'diskboan SVC'"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\diskboan SVC]
"DisplayName"="'diskboan SERVICE'"
"ImagePath"="C:\Documents and Settings\{username}\Application Data\diskboan\diskboansvc.exe."
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\diskboan SVC\Enum]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\diskboan SVC\Security]
"Security"="................0.................................`......................................... ... "

Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malware

Database version: v2012.09.15.01

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

9/15/2012 9:27:01 AM
mbam-log-2012-09-15 (09-27-01).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: 171784
Time elapsed: 50 second(s)

Memory Processes Detected: 1
C:\Program Files\diskboan\diskboan.exe (Rogue.DiskBoan) -> 1004 -> Delete on reboot.

Memory Modules Detected: 1
C:\Program Files\diskboan\diskboan.dll (Rogue.K.DiskBoan) -> Delete on reboot.

Registry Keys Detected: 4
HKLM\SYSTEM\CurrentControlSet\Services\diskboan SVC (Rogue.DiskBoan) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\diskboan (Rogue.DiskBoan) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\diskboansvc.exe (Rogue.DiskBoan) -> Quarantined and deleted successfully.
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DISKBOAN_SVC (Rogue.DiskBoan) -> Quarantined and deleted successfully.

Registry Values Detected: 1
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\diskboan|URLInfoAbout (Rogue.DiskBoan) -> Data: http://www.diskboan.com -> Quarantined and deleted successfully.

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

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

Files Detected: 7
C:\Program Files\diskboan\diskboan.exe (Rogue.DiskBoan) -> Delete on reboot.
C:\Program Files\diskboan\diskboan.dll (Rogue.K.DiskBoan) -> Delete on reboot.
C:\Documents and Settings\{username}\Application Data\diskboan\diskboansvc.exe (Rogue.DiskBoan) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\diskboan\diskboancnt.exe (Adware.Kraddare) -> Quarantined and deleted successfully.
C:\Program Files\diskboan\prv.dat (Rogue.DiskBoan) -> Quarantined and deleted successfully.
C:\Program Files\diskboan\diskboanmon.exe (Rogue.DiskBoan) -> Quarantined and deleted successfully.
C:\Program Files\diskboan\uninst.exe (Rogue.DiskBoan) -> 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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