Danger level:  
  (99/100)

CryptoWall 4.0. How to delete? (Removal tutorial)

removal by Ugnius Kiguolis - - | Type: Browser hijacker
12

CryptoWall 4.0 virus: the main things you need to know

Once CryptoWall 4.0 virus secretly infects a computer, it searches for the valuable information and then locks it out using an elaborate AES algorithm. After the encryption is done, the malware drops a message on user’ desktop declaring of the locked files. The creators of this ransomware provide you with seemingly the only option to recover the data. They require you to pay significant ransom in exchange for the information. However, you shouldn’t behave according to their expectations. This article will help you find out possible ways to remove CryptoWall 4.0 virus from your computer.

The original version, CryptoWall, walked into the spotlight more than two years ago after hijacking millions of users’ computers. Both individuals and corporations in the US, Canada, some European countries found themselves unable to access their private data due to the encryption. Moreover, it has been observed that CryptoWall 4.0 tended to escape certain countries, such as Eastern European states, Russia, and the countries of Central Asia. The main power of attack was concentrated on the US and Canada. France, the UK, Japan were secondary victims. Therefore, the cyber criminals have managed to coax out millions of pounds from their victims. Certainly, if your computer has been infected by this malware, do not rush to pay the ransom. Even if you remit the payment, there are no guarantees that the encrypted files will be returned to you. In this case, you must remove CryptoWall 4.0 ransomware from your computer. For that you can use Reimage.

The picture showing CryptoWall 4.0 ransom note

What are the improvements of CryptoWall 4.0?

Comparing CryptoWall 4.0 malware to the older ones, it has been noticed that it mostly spreads via infected emails with fake invoice or traffic alerts. Beware of these attachments: bot.exe internal_31572.scr, internal_A8392J-DNGE82-378251-238375.scr, ACH_Import_Information-UADH-8JAF-HASU-82GJ.scr. Such infected attachments bear a malicious code which activates the virus. After the malware starts its menacing mission, it scans for files formatted as docx, .pdf, .txt, .img, .gif, .mp3, .mp4, .flv. Then, the virus successfully encrypts the files. Here is the spot where cyber criminals introduced an update. Besides encrypting the files bearing the mentioned formats, CryptoWall 4.0 is able to rename the encrypted files. Therefore, it becomes quite challenging to find encrypted files. You should also keep in mind that it leaves HELP_YOUR_FILES.TXT, HELP_YOUR_FILES.PNG files on your system. So IT experts granted an alternative title to the ransomware — HELP_YOUR_FILES virus. Moreover, due to the success of previous malware versions, cyber criminals also raised the amount of required ransom. Initially, it required 1 Bitcoin which evens to £325, now the virus places the time limit and requires to pay £497. In case the victim fails to make the transaction within 96 hours, the ransom levels up to £994.

Furthermore, it has been noticed that 68% of CryptoWall 4.0 ransomware infections spread via phishing emails while a significant part of 30,7% infections spread via exploit kits. They are so called ‘fileless infections’ which take different shape: they might be minor invisible malicious files which inject ransomware into your system or they might be sly trojans. In this particular case, you’ll need to have a powerful anti-spyware program which can detect the malware. It might ease CryptoWall 4.0 removal as well. So finally, let us move on the final and the most important part where we will tell how to get rid of the malware.

CryptoWall 4.0 removal:

CryptoWall 4.0 virus has rightfully claimed the title of one the most dangerous ransomware. Due to its complexity and aggressive behaviour, you might find significant difficulties deleting the ransomware without additional help. However, what you can do is to delete the above mentioned HELP_YOUR_FILES.TXT file. Certainly, it won’t remove CryptoWall 4.0 itself. In order to do this, you need to install a reputable anti-spyware program. After you succeed in eliminating the virus, run the anti-virus and anti-spyware once again. You should also proof check whether it was deleted by following the instructions developed by cyber security specialists. Finally, remember to be more careful while opening suspicious emails and back up regularly the valuable personal data.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Computer security experts recommend using Reimage to uninstall CryptoWall 4.0. Reimage scans the entire computer system and checks whether it is infected with spyware/malware or not. If you want to remove computer threats and secure your computer system, you should consider buying the licensed version of Reimage.

You can find more details about this program in Reimage review.

You can find more details about this program in Reimage review.
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Press mentions on Reimage
CryptoWall 4.0 screenshot
CryptoWall 4.0 screenshot

Manual CryptoWall 4.0 Removal Instructions:

Eliminate CryptoWall 4.0 using Safe Mode with Networking

You can detect malware using Reimage.
You need to purchase a licensed version of it to remove threats.
More details about Reimage.

  • Step 1: Restart your computer in Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Safe Mode with Networking from the list Choose 'Safe Mode with Networking' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Networking from the list of options in Startup Settings. Choose 'Enable Safe Mode with Networking' option
  • Step 2: Remove CryptoWall 4.0

    Sign in to your account and launch any Internet browser. Download a legitimate anti-malware software, for instance, Reimage. Make sure you update it to the latest version and then run a full system scan with it to detect and eliminate all malicious components of the ransomware to remove CryptoWall 4.0 completely.

If your ransomware does not allow you to access Safe Mode with Networking, please follow the instructions provided below.

Eliminate CryptoWall 4.0 using System Restore

You can detect malware using Reimage.
You need to purchase a licensed version of it to remove threats.
More details about Reimage.

  • Step 1: Restart your computer in Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Command Prompt from the list Choose 'Safe Mode with Command Prompt' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Command Prompt from the list of options in Startup Settings. Choose 'Enable Safe Mode with Command Prompt' option
  • Step 2: Perform a system restore to recover files and settings
    1. When the Command Prompt window appears, type in cd restore and press Enter. Type 'cd restore' without quotes and hit 'Enter'
    2. Then type rstrui.exe and hit Enter.. Type 'rstrui.exe' without quotes and hit 'Enter'
    3. In a new window that shows up, click the Next button and choose a restore point that was created before the infiltration of CryptoWall 4.0 and then click on the Next button again. When 'System Restore' wizard comes up, click 'Next'. Choose a preferable restore point and click 'Next'
    4. To start system restore, click Yes. Hit 'Yes' and start system restore
    After restoring the computer system to an antecedent date, install and check your computer with Reimage to uncover any remains of CryptoWall 4.0.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from CryptoWall 4.0 and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Ugnius Kiguolis
Ugnius Kiguolis

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Source: https://www.2-spyware.com/remove-cryptowall-4-0.html

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  • OscarW

    Used SpyHunter to remove this. Approved tool to fix computer. Thanks!