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Removal instructions for HDDDefragmenter


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What is HDDDefragmenter?

The Malwarebytes research team has determined that HDDDefragmenter 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 HDDDefragmenter?

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

main.png

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

icons.png

And see these warnings:

warning2.png

warning1.png

warning3.png

warning4.png

warning5.png

How did HDDDefragmenter get on my computer?

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

How do I remove HDDDefragmenter?

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 HDDDefragmenter?

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

protection1.png

protection.png

Technical details for experts

Signs in a HijackThis log:

C:\DOCUME~1\{username}\LOCALS~1\Temp\winsp1up.exe

O4 - HKCU\..\Run: [winsp1up.exe] C:\DOCUME~1\{username}\LOCALS~1\Temp\winsp1up.exe

Alterations made by the installer:

  File System
===============
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temp
Adds the file winsp1up.exe"="10:46 01/11/10 461824 bytes
Adds the file winsp1upd.dll"="14:20 02/11/10 376832 bytes

Registry
===============
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
"winsp1up.exe"="'C:\DOCUME~1\{username}\LOCALS~1\Temp\winsp1up.exe'

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 5021

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

11/2/2010 2:37:30 PM
mbam-log-2010-11-02 (14-37-30).txt

Scan type: Quick scan
Objects scanned: 125851
Time elapsed: 5 minute(s), 0 second(s)

Memory Processes Infected: 2
Memory Modules Infected: 1
Registry Keys Infected: 0
Registry Values Infected: 2
Folders Infected: 0
Files Infected: 4

Memory Processes Infected:
C:\Documents and Settings\{username}\Local Settings\Temp\winsp1up.exe (Trojan.Dropper) -> Unloaded process successfully.
C:\Documents and Settings\{username}\Local Settings\Temp\59505.exe (Rogue.Agent) -> Unloaded process successfully.

Memory Modules Infected:
C:\Documents and Settings\{username}\Local Settings\Temp\winsp1upd.dll (Rogue.Agent) -> Delete on reboot.

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winsp1up.exe (Trojan.FakeAlert.H) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\59505 (Rogue.Agent) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Documents and Settings\{username}\Local Settings\Temp\winsp1up.exe (Trojan.FakeAlert.H) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temp\winsp1upd.dll (Rogue.Agent) -> Delete on reboot.
C:\Documents and Settings\{username}\Local Settings\Temp\59505.exe (Rogue.Agent) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\HDD Defragmenter.LNK (Rogue.HDDDefragmenter) -> 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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