Check Disk Description

Check Disk is a bogus defragmenter intended to hold a computer ransom by preventing PC users from launching programs or deleting files. Once Check Disk is installed, it will run a system scan and allege to have detected various errors only to drive PC users to purchase its full version. To raise the level of fear even higher, CheckDisk has certain folders show any data. Upon opening a folder like C:\Windows\System32\, Check Disk is capable of displaying another folder’s details or make it look as if it’s empty.

If you attempt to use your preferred anti-virus program, Check Disk will terminate it and display error messages, such as “Windows detected a hard drive problem,” to trick you into coming to the conclusion that the hard drive has been corrupted and an action has to be taken fast to fix it. These bogus error messages and scan results are all used to mislead you into purchasing Check Disk and do not let desperation lead you to putting your personal information in jeopardy. Check Disk can neither detect nor remove computer infections. Check Disk is no more than a scam and you should seek a recognized security tool to completely remove it.

Type: Misleading Product

How Can You Detect Check Disk?

Check Disk Technical Report

As new Check Disk details are reported by our customers and findings from our Threat Research Center, we will update this section.

Fake message for Check Disk:

The following fake error message(s) appears for Check Disk:

Windows cannot find notepad. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.

Windows detected a hard drive problem.
A hard drive error occurred while starting the application.

System Restore
The system has been restored after a critical error. Data integrity and hard drive integrity verification required.

Critical Error!
Windows was unable to save all the data for the file \System32\496A8300. The data has been lost. This error may be caused by a failure of your computer hardware.

Critical Error
A critical error has occurred while indexing data stored on hard drive. System restart required.

Critical Error
Hard Drive not found. Missing hard drive.

Critical Error
RAM memory usage is critically high. RAM memory failure.

Critical Error!
Damaged hard drive clusters detected. Private data is at risk.

Critical Error
Windows can’t find hard disk space. Hard drive error.

32% of HDD space is unreadable
Requested registry access is not allowed. Registry defragmentation required
Read time of hard drive clusters less than 500 ms
Drive C initializing error
Bad sectors on hard drive or damaged file allocation table
GPU RAM temperature is critically high. Urgent RAM memory optimization is required to prevent system crash
Data Safety Problem. System integrity is at risk.
Registry Error – Critical Error
Ram Temperature is 83 C. Optimization is required for normal operation.
Hard drive doesn’t respond to system commands

Check Disk has typically the following processes in memory:

• %Temp%\[Random].dll
• %Temp%\[Random].exe

Check Disk creates the following registry entries:

• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “[Random]”
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “[Random].exe”

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