THREAT REMOVAL

.BLOCKED Files Virus (CrystalCrypt) – How to Remove and Restore Files

This article has been created in order to explain what is the .BLOCKED files virus and how to remove it from your computer plus how to restore .BLOCKED encrypted files by it.

A new ransomware infection, going by the name CrystalCrypt has been reported by malware researcher Michael Gillespie. The virus aims to encrypt the files on the computers infected by it after which it adds the .BLOCKED file suffix to the files encoded by it. Only after doing so, the .BLOCKED files virus begins to extorts it’s victims by dropping a ransom note which demands to pay 0.17 BitCoins in order to get the cyber-criminals to decrypt the files so they become usable again. In the event that your computer has been infected with the CrystalCrypt .BLOCKED ransomware virus, we advise you to read the following article and learn how to remove this ransomware and how to restore files, encrypted with added .BLOCKED file extension.

Threat Summary

Name CrystalCrypt .BLOCKED
Type Ransomware, Cryptovirus
Short Description Aims to encrypt the files on the compromised computers, asking victims to pay around 0.17 BitCoins in order to get the files to open again.
Symptoms Files on the infected computer are encrypted with added .BLOCKED file extension.
Distribution Method Spam Emails, Email Attachments
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User Experience Join Our Forum to Discuss CrystalCrypt .BLOCKED.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.BLOCKED Files Virus – How Does It Infect

In order to infect victims, the .BLOCKED files virus may be spread via either active methods or passive ones. If spread by passive methods, the virus may be uploaded as a fake executable file, pretending to be a legitimate one. The sites on which it may be uploaded may be of low reputation and may even be Torrent tracker websites. The malicious files may pretend to be legitimate:

  • Drivers.
  • Software activators.
  • Cracks for software or games.
  • Patches.

In addition to simply waiting for you to download it’s infection file on your computer, the cyber-criminals behind the .BLOCKED files virus may also send you the infection file via e-mail. To best trick inexperienced victims into opening the file, they may pretend that it is an important document, such as:

  • An Invoice.
  • Order receipt.
  • Some kind of important banking document.

Since cyber-crooks often mask the e-mails as if they are legitimate type of messages, they pretend as if they come from large companies, like PayPal, eBay, Amazon or other big names and even mask their logos and support e-mails to appear as if they come from the original source.

CrystalCrypt .BLOCKED Files Virus – More Information

CrystalCrypt ransomware is the type of malware which aims to perform various different modifications on the files on the infected computers. The virus begins it’s malicious activity by dropping it’s payload files on the computers of victims. The payload of CrystalCrypt may reside in the following Windows folders:

  • %AppData%
  • %Local%
  • %Roaming%
  • %LocalLow%
  • %Temp%
  • %Windows%

After dropping it’s files, the CrystalCrypt ransomware virus may create mutexes, touch files and create scheduled tasks on the infected computer, so that it runs the malicious file(s) of it’s payload automatically. The virus may also modify the Windows Registry Editor, more importantly create entries in the Run and RunOnce Windows sub-keys, that are responsible for running the ransom note file or the malicious file of the .BLOCKED files virus automatically each time when you log in Windows. The registry sub-keys in which those malicious entries may reside have the following locations:

→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

In addition to this, the .BLOCKED ransomware virus aims to drop it’s ransom note on the victim’s computer. The virus has the following message in it:

CrystalCrypt
All your private files were encrypted with an strong RSA 2048 and AES 256 algorithm. To decrypt your files you must pay 0.17.

.BLOCKED Files Virus – Encryption Procedure

In order to encrypt the files on the infected computer, the .BLOCKED files virus has a pre-configured list of file types it aims to encrypt. In the same time, the virus is careful not to encrypt crucial drivers and system files, so that the infected computer is still being usable. The files which CrystalCrypt may scan your computer for are likely the most commonly used file types, which usually have the following file extensions:

→ “PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”

After encryption is complete, the .BLOCKED files virus may leave the encrypted files to appear like the following:

Remove .BLOCKED CrystalCrypt Ransomware and Restore Files

In order to remove this ransomware infection, recommendations are to follow the removal instructions at the bottom of this article. They are divided in manual or automatic removal instructions, based on the experience with malware removal which you possess. If you lack experience in removing viruses, like CrystalCrypt manually, be advised that experts in cybersecurity always advise users to scan their computers with an advanced anti-malware software, which will help you to automatically erase all traces of CrystalCrypt ransomware from your computer and ensure future protection is guaranteed.

If you want to restore files that have been encrypted by this ransomware infection, reccomendations are that you follow the file recovery instructions underneath this article in step “2. Restore files encrypted by CrystalCrypt .BLOCKED”. They may not be 100% effective when it comes to decrypting your files, but their primary purpose is to help recover as many encrypted files as possible.

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Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove CrystalCrypt .BLOCKED from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove CrystalCrypt .BLOCKED

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall CrystalCrypt .BLOCKED and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by CrystalCrypt .BLOCKED on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by CrystalCrypt .BLOCKED there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for CrystalCrypt .BLOCKED with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by CrystalCrypt .BLOCKED.

Ransomware infections and CrystalCrypt .BLOCKED aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of CrystalCrypt .BLOCKED from Mac OS X.


Step 1: Uninstall CrystalCrypt .BLOCKED and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to CrystalCrypt .BLOCKED:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to CrystalCrypt .BLOCKED. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to CrystalCrypt .BLOCKED. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove CrystalCrypt .BLOCKED via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as CrystalCrypt .BLOCKED. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for CrystalCrypt .BLOCKED:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by CrystalCrypt .BLOCKED.

Ransomware infections and CrystalCrypt .BLOCKED aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


CrystalCrypt .BLOCKED FAQ

What is CrystalCrypt .BLOCKED ransomware and how does it work?

CrystalCrypt .BLOCKED is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does CrystalCrypt .BLOCKED ransomware infect my computer?

Via several ways.CrystalCrypt .BLOCKED Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of CrystalCrypt .BLOCKED is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .CrystalCrypt .BLOCKED files?

You can't. At this point the .CrystalCrypt .BLOCKED files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .CrystalCrypt .BLOCKED files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by CrystalCrypt .BLOCKED ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".CrystalCrypt .BLOCKED" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .CrystalCrypt .BLOCKED files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of CrystalCrypt .BLOCKED ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate CrystalCrypt .BLOCKED ransomware and then remove it without causing any additional harm to your important .CrystalCrypt .BLOCKED files.

Also, keep in mind that viruses like CrystalCrypt .BLOCKED ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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