THREAT REMOVAL

Remove CryptoBlock Ransomware and Restore Your Files

Attention! This article will help you remove CryptoBlock ransomware in full. Follow the ransomware removal instructions given at the end of the article.

New ransomware that is still in development has appeared on the Internet with multiple samples. The name of this virus is CryptoBlock – so it says in its ransom note. A few malware researchers discovered samples of its active payload file. The ransom message appears after your files are dealt with and deemed inaccessible, but for now they will not get encrypted.

Threat Summary

NameCryptoBlock
TypeRansomware
Short DescriptionThe ransomware is still in development, but it seems that it would get finished soon. It has a list with which processes to stop and which files to encrypt.
SymptomsThe ransomware will encrypt your data. Then it will display a ransom note with instructions for payment.
Distribution MethodPayload file that can be spread via e-mails and sites
Detection Tool See If Your System Has Been Affected by malware

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss CryptoBlock.
Data Recovery ToolWindows 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.

CryptoBlock Ransomware – Infection Spread

In the future, CryptoBlock ransomware might spread its infection in many ways. The most popular of these ways and go-to-choice would probably be with the help of a payload file. If you download such a file and execute it, a malicious script will be triggered and infect your computer. You can see the analysis of an executable file containing a sample of the payload on the VirusTotal website down here:

CryptoBlock ransomware might spread its payload file around social media networks and services for file sharing. The malicious payload script inside could be spread with different files. Lots of freeware and bundled programs could be presented as useful but actually be used to hide the entry point of the ransomware in the near future. Refrain from opening files from suspicious sources such as emails or links, especially after you download them. Beforehand, you should do a scan with a security tool and check the files’ size and signatures for anything that seems out of place. Read the preventing ransomware tips in the forum topic with a similar name.

CryptoBlock Ransomware – Technical Information

The CryptoBlock ransomware is also a cryptovirus, but currently an inactive one. Your files will not get encrypted as the encryption does not work fully. Different malware researchers have discovered more than five samples of it in the wild. One of them even noted that the virus has a .wav with recorded text to be played, similar to that of Cerber ransomware.

CryptoBlock ransomware could create entries in the Windows Registry to achieve persistence. Such registry entries are designed to make a virus start automatically with each boot of the Windows Operating System.

After your files are encrypted, the ransomware is made to drop a ransom note. That note contains the demands of the cybercriminals for unlocking your files.

You can see the contents of the ransom note down here:

The main text of the ransom note reads the following:

CryptoBlock
Your personal files are encrypted!
Your personal files encryption produced on this computer: photos, videos, documents, etc. Encryption was produced using a unique public key RSA-2048 generated for this computer.
To decrypt files you need to obtain the private key.
The single copy of the private key, which will allow to decrypt the files, located on a secret server on the Internet; the server will destroy the key after a time specified in this window. After that, nobody and never will be able to restore files…
To obtain the private key for this computer, which will automatically decrypt files, you need to pay 0.3 bitcoin (~210 USD).
You can easily delete this software, but know that without it, you will never be able to get your original files back.
Disable your antivirus to prevent the removal of this software.
For more information on how to buy and send bitcoins, click “How to pay”
Do not delete this list, it will be used for decryption. And do not move your files.
Each time the timer expires, the total cost will raise.
After the purchase is made, wait 1-3 hour for our confirmation of the bitcoins.
After that click on “Decrypt Files” to Decrypt your files.

The rest of the text from the note that doesn’t have a red background, reads the following:

First send the bitcoin to this adress and then
click on the blue button
Send exactly 0.3 BTC to this address:
Note: You should send the bitcoins to this adress
Click here if you send the bitcoins
Note: You can purchase bitcoins from this sites for yourself
https://localbitcoins.com
https://www.coinbase.com
https://cex.io (UK)
https://paxful.com

There is also an additional message in one of the found samples. It looks like the following:

As you can see, the cyber crooks would demand around 200 US dollars as payment for unlocking your files. You should NOT ever think of paying that sum of money. This will only financially support the cybercriminals without knowing if you are going to get your files back. Nobody can give you a guarantee that you will restore your files upon payment.

The CryptoBlock ransomware doesn’t seem to encrypt files for now, or at least their names just get scrambled as the virus is still in development. The encryption algorithm might really be set to be RSA-2048. But you can see that the criminals are eagerly working on their project:

Here is a partial list of extensions that the ransomware will seek to encrypt:

→.mny, .mrw, .myd, .ndd, .nef, .nop, .nrw, .nwb, .nxl, .nyf, .odb, .odf, .odg, .odm, .orf, .otg, .oth, .otp, .ots, .ott, .pdd, .pem, .plc, .pot, .py, .qba, .qbr, .qbw, .qbx, .qby, .raf, .rat, .raw, .rdb, .rwl, .rwz, .sda, .sdf, .srf, .srw, .std, .sti, .u.stw, .stx, .sxd, .sxg, .sxi, .sxm, .tex, .wpd, .xis, .wallet.dat

The CryptoBlock cryptovirus could erase the Shadow Volume Copies from the Windows operating system by using the following command line:

→vssadmin.exe delete shadows /all /Quiet

Read on further to find out what restoration methods you could try out to recover files in the chance they become encrypted by this ransomware.

Remove CryptoBlock Ransomware and Restore Your Files

If your computer got infected with the CryptoBlock ransomware virus, you should have some experience in removing malware. You should get rid of this ransomware as fast as possible before it can have the chance to spread further and infect more computers. You should remove the ransomware and follow the step-by-step instructions guide given below. To see ways that you can try to recover your data, see the step titled 2. Restore files encrypted by CryptoBlock.

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Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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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.


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with Spy Hunter
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 CryptoBlock from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove CryptoBlock

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 CryptoBlock 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 CryptoBlock 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 CryptoBlock 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 CryptoBlock 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 CryptoBlock.

Ransomware infections and CryptoBlock 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 CryptoBlock from Mac OS X.


Step 1: Uninstall CryptoBlock 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 CryptoBlock:

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 CryptoBlock. 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 CryptoBlock. 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 CryptoBlock 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 CryptoBlock. 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.


Step 2: Scan for and remove malware from your Mac

When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


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

Ransomware infections and CryptoBlock 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.


CryptoBlock FAQ

What is CryptoBlock ransomware and how does it work?

CryptoBlock 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 CryptoBlock ransomware infect my computer?

Via several ways.CryptoBlock 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 CryptoBlock 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 .CryptoBlock files?

You can't. At this point the .CryptoBlock 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 .CryptoBlock files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by CryptoBlock 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 ".CryptoBlock" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .CryptoBlock 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 CryptoBlock 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 CryptoBlock ransomware and then remove it without causing any additional harm to your important .CryptoBlock files.

Also, keep in mind that viruses like CryptoBlock 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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