How to Remove Defragmenter (Uninstall Guide)

Monday, December 13, 2010

How to Remove Defragmenter (Uninstall Guide)

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Defragmenter is a misleading program that may report false scan results on the computer, e.g. hard drive disk and registry errors. This rogue program is not actively promoted but it's still a threat. We've got a sample that doesn't detect any problems on the computer. However, it's definitely related to HDD Plus, HDD Diagnostic, Disk Doctor, and some other rogue disk defragmenters. These rogues are being actively promoted and through the use of trojan downloaders and fake online scanners. The rogue defragmenters report fake computer problems to trick users into purchasing bogus software. We think that this fake Defragmenter tool is being used to prove that your computer is clean after you purchase one of the rogue defragmenters. Be advised, Defragmenter is a piece of malware. If you have this rogue on your computer, please remove get rid of it. If you have problems removing Defragmenter, please follow the removal instructions below. Good luck and be safe online!

Defragmenter removal instructions:

1. Download TDSSKiller (free utility from Kaspersky Lab) and run it. Remove TDSS rootkit if exist.

2. Download free anti-malware software from the list below and run a full system scan.

NOTE: in some cases the rogue program may block anti-malware software. Before saving the selected program onto your computer, you may have to rename the installer to iexplore.exe or winlogon.exe With all of these tools, if running Windows 7 or Vista they MUST be run as administrator. Launch the program and follow the prompts. Don't forget to update the installed program before scanning.

6. New threats appear every day. In order to protect your PC from such (new) infections we strongly recommend you to use ESET Smart Security.

Defragmenter removal instructions (in Safe Mode with Networking):

1. Reboot your computer is "Safe Mode with Networking". As the computer is booting tap the "F8 key" continuously which should bring up the "Windows Advanced Options Menu" as shown below. Use your arrow keys to move to "Safe Mode with Networking" and press Enter key. Read more detailed instructions here: http://www.computerhope.com/issues/chsafe.htm

NOTE: Login as the same user you were previously logged in with in the normal Windows mode.

2. Download free anti-malware software from the list below and run a full system scan.

NOTE: in some cases the rogue program may block anti-malware software. Before saving the selected program onto your computer, you may have to rename the installer to iexplore.exe or winlogon.exe With all of these tools, if running Windows 7 or Vista they MUST be run as administrator. Launch the program and follow the prompts. Don't forget to update the installed program before scanning.

3. New threats appear every day. In order to protect your PC from such (new) infections we strongly recommend you to use ESET Smart Security.

Defragmenter associated files and registry values:

Files:

%Temp%\[SET OF RANDOM NUMBERS].exe
%Temp%\[SET OF RANDOM CHARACTERS].exe
%Temp%\dfrg
%Temp%\dfrgr
%Temp%\[SET OF RANDOM CHARACTERS].dll
%UserProfile%\Desktop\Defragmenter.lnk
%UserProfile%\Start Menu\Programs\Defragmenter\
%UserProfile%\Start Menu\Programs\Defragmenter\Defragmenter.lnk
%UserProfile%\Start Menu\Programs\Defragmenter\Uninstall Defragmenter.lnk

%Temp% refers to:
C:\Documents and Settings\[UserName]\Local Settings\Temp (in Windows 2000/XP)
C:\Users\[UserName]\AppData\Local\Temp (in Windows Vista & Windows 7)

%UserProfile% refers to:
C:\Documents and Settings\[UserName]\ (in Windows 2000/XP)
C:\Users\[UserName]\ (in Windows Vista & Windows 7)

Registry values:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "[SET OF RANDOM NUMBERS]"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "[SET OF RANDOM NUMBERS].exe"

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