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Removal instructions for WinHDD

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Content is republished with permission from Malwarebytes.

What is WinHDD?

The Malwarebytes research team has determined that WinHDD 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 WinHDD?

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

Posted Image

And you will find these icons on your desktop and in your taskbar:

Posted Image

How did WinHDD get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was installed by a trojan.

How do I remove WinHDD?

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 WinHDD?

  • No, Malwarebytes' Anti-Malware removes WinHDD 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 WinHDD 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:

O4 - HKCU\..\Run: [98b831] C:\DOCUME~1\{username}\LOCALS~1\Temp\98b831.exe

Note: the file-name is random

Alterations made by the installer:
  File System
    In the existing folder C:\Documents and Settings\{username}\Desktop
      Adds the file Win HDD.lnk"="12:51 11/12/10 778 bytes
    In the existing folder C:\Documents and Settings\{username}\Local Settings\Temp
      Adds the file 98b831"="12:51 11/12/10 336 bytes
      Adds the file 98b831.exe"="09:34 30/11/10 357376 bytes
    Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\Win HDD
      Adds the file Win HDD.lnk"="12:51 11/12/10 790 bytes
      Adds the file Uninstall Win HDD.lnk"="12:51 11/12/10 862 bytes

    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.50

Database version: 5293

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

12/11/2010 1:04:03 PM
mbam-log-2010-12-11 (13-04-03).txt

Scan type: Quick scan
Objects scanned: 117784
Time elapsed: 2 minute(s), 6 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
Folders Infected: 1
Files Infected: 4

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98b831 (Rogue.WinHDD) -> Value: 98b831 -> Quarantined and deleted successfully.

Folders Infected:
c:\documents and settings\{username}\start menu\Programs\Win HDD (Rogue.WinHDD) -> Quarantined and deleted successfully.

Files Infected:
c:\Documents and Settings\{username}\Local Settings\Temp\98b831.exe (Rogue.WinHDD) -> Delete on reboot.
c:\documents and settings\{username}\start menu\Programs\Win HDD\Win HDD.lnk (Rogue.WinHDD) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\start menu\Programs\Win HDD\uninstall win hdd.lnk (Rogue.WinHDD) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\Win HDD.lnk (Rogue.WinHDD) -> 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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