June 8, 2011

Disk Doctor.


Disk Doctor is a newly launched fake system optimizer that works almost the same way as infamous Win Defrag, Scan Disk and Win Defragmenter.

There should be mentioned that actually it took a name of a legitimate program so be careful in distinguishing between these programs.
Disk Doctor is distributed to computers through Trojan viruses and starts its malicious activity once it gets to the system. The program imitates performing system can and after that it reports that your system contains tons of critical errors that basically include RAM memory problems and hard drive issues.
The entire stay of Disk Doctor in the system will be leaded by tons of fake error messages stating that there’s something wrong with your computer. Moreover, it will attempt to terminate any programs on your computer every time you will try to run something. Disk Doctor will state that the program or your hard drive is corrupted. It will try to terminate your antivirus program as well in order to protect itself from being eliminated.
All of the messages and the scan results will be followed by an offer to purchase a full version of Disk Doctor claiming that it’s a program that will solve all the problems that appeared on your computer. You must ignore any of such statements and instead remove Disk Doctor form your computer as soon as possible. Never pay for this noxious application as you will only lose your money. In case this has already happened, contact your credit card and dispute the charges immediately.

Removal:
Kill malicious Processes from Task Manager: 
  • <random>.exe
 Location of the infection:
  1. %TempDir%\[random].exe
  2. %TempDir%\dfrgr
  •  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\afwserv.exe "Debugger" = 'svchost.exe'
  •  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastsvc.exe "Debugger" = 'svchost.exe'
  •  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastui.exe "Debugger" = 'svchost.exe'
Although it is possible to manually remove Disk Doctor, such activity can permanently damage your system if any mistakes are made in the process, as advanced spyware parasites are able to automatically repair themselves if not completely removed. Thus, manual spyware removal is recommended for experienced users only, such as IT specialists or highly qualified system administrators. For other users, we recommend  malware and spyware removal applications.

After removing all these files, restart your computer and the issue will be fixed. And don’t forget to do update your Security Software, check the Firewall Settings and the Operating System and finally do a full system scan with the Security Software.

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