CryptoWall virus. How to delete? (Removal tutorial)

removal by Gabriel E. Hall - - | Type: Browser hijacker
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The fundamental things you should know about CryptoWall virus

CryptoWall virus is one of the many ransomware viruses that are continually being created every day. Just like other programs, such as Locky, Cryptolocker, BitCrypt, Cerber and a number of others, CryptoWall is intended to bring profit to its developers. It is a rather easy money as well. The principle of CryptoWall allows its creators to collect considerable sums of money by using an extremely complex RSA-2048 algorithm to encrypt the user’s files and asking to pay the ransom for the ability to unlock them. CryptoWall virus is also considered dangerous because there are a few versions of this malicious program. CryptoWall 2.0, CryptoWall 3.0 and CryptoWall 0.4 are all equally harmful and can damage your files irreversibly. There is no known way to decrypt the encrypted files without paying for the decryption key. Therefore, for the sake of your system’s health and the safety of your future files, it is highly recommended not to keep this program on your computer. If your notice that you lost access to some of your files, scan your system with a reputable antivirus tool, such as Reimage ASAP! Perhaps you will manage to save at least some of the remaining documents and remove CryptoWall from your computer before it causes more damage.

Speaking about the workings of CryptoWall virus in more detail, it should be noted that this ransomware travels through infected emails and can infect virtually any of the Windows operational systems, including XP, Vista, Windows 7 and Windows 8. Once the infected email is opened, and the attached infectious file is downloaded, the virus becomes activated and can begin scanning your system for files and encrypt them with the mentioned algorithm. Usually, this virus targets the audio, video files, pictures, documents and archives, but there is a number of different file extensions it can affect as well. The victims of this virus report that after CryptoWall encrypts the files it displays a message explaining what exactly happened to the computer and what can be done to retrieve the files. Typically, the victim is given a deadline to pay the ransom of $500 (~£350) after which, the sum required for the file decryption key doubles. The ransom must be paid in virtual BitCoin money. Also, the notification features links to the websites where the CryptoWall decryption key can be obtained. However, visiting the indicated websites can also be dangerous since they have to be accessed through the anonymous Tor network. It is no secret that this web browser is favored by cyber criminals because the anonymous platform enables them to easily conceal their identities. Therefore, if you decide to pay up, you not only risk of being issued a bogus decryption key or not receiving one at all, but also contaminating your system even more, with different viruses, Trojans and worms possibly lurking in the unsafe websites. We do not recommend making any transactions to the cyber criminals and better hurry with the CryptoWall removal. If you still feel sorry for your files think about whether you want to encourage the further development of such fraudulent programs and support their creators by giving them the ability to earn illegal money.

How can this virus infect my computer?

Apart from the already mentioned CryptoWall distribution via spam emails, this virus can enter the system through deceptive software updates which most commonly are encountered on unreliable websites. Java, Flash Player, Adobe Reader and similar software are the usual targets of this virus infection. The victim unsuspectedly downloads the software update, which is, in fact, an .exe file that downloads the virus and runs it on the PC. However, the most widespread method for CryptoWall to travel around the internet is through the infected email attachments. Therefore, the first thing you should do before opening newly received correspondence, especially, if it comes from an unknown source, is to make sure the emails are safe. It is not recommended to interact with any of the emails stored in the “spam” folder since the possibly hazardous emails are usually recognized by your mail provider’s system and automatically placed in this category. You can open “spam” emails unless you are really sure of their safety. If you do not take these initial precautions, the CryptoWall virus can easily slip into your computer and carry out its malicious activities, so, the next message you will see on your computer will be the ransom note, named as DECRYPT_INSTRUCTION.txt, DECRYPT_INSTRUCTION.html or DECRYPT_INSTRUCTION.url. The contents of this note go as follows:

Decrypt service
Your files are encrypted.
To get the key to decrypt files, you have to pay 500 USD/EUR. If payments is not made before [date] the cost of decrypting files will increase 2 times and will be 1000 USD/EUR Prior to increasing the amount left: [count down timer]
We are present a special software – CryptoWall Decrypter – which is allow to decrypt and return control to all your encrypted files. How to buy CryptoWall decrypter?
1. You should register Bitcoin waller
2. Purchasing Bitcoins – Although it’s not yet easy to buy bit coins, it’s getting simpler every day.
3. Send 1.22 BTC to Bitcoin address: 1BhLzCZGY6dwQYgX4B6NR5sjDebBPNapvv
4. Enter the Transaction ID and select amount.
5. Please check the payment information and click “PAY”.

Once again we have to warn you not to feel frightened or tempted by this note. The cyber criminals are only waiting for the easy profit and will do anything to make the victims pay. Therefore, it is better to avoid this malicious virus than losing your files or having to deal with the lengthy virus removal. We want to emphasize the fundamental precautions to be taken if you want to avoid this virus from entering your system. First and foremost, you should always keep a backup copy of your files in some external storage. Use USB, external hard drives, CD’s, DVD’s or any other storage which you can trust. You can store your files on file clouds like Google Drive or Dropbox, however, be aware that it is also a risky solution since this ransomware-type viruses tend to hijacks these platforms as well. Another security measure you can employ in your computer protection is the obtaining of a reliable antivirus suite, which should safeguard your computer and your browsing not only from CryptoWall but other threats as well. Finally, be very attentive while browsing the internet yourself and do not fall for the tricks, different hackers and scammers may be have prepared for you.

CryptoWall removal tips:

As you are already acquainted with this virus, its workings and dangers, you most probably are thinking about its removal. However, CryptoWall removal may pose some problems. First, it may be well hidden deep in your computer’s system, so detecting it can take time. Also, viruses like these tend to spread their malicious files throughout the infected system therefore, deleting the executive file may not be enough to completely eliminate the virus from the computer. If you do not delete all the viruses components from your system and try to recover the files from a backup, the virus may infiltrate your external storages as well and encrypt the containing files.

After you safely and entirely remove CryptoWall then, and only then, can you attempt to recover your files from external storages or online clouds. Therefore, it is essential to remove the virus and its components from your computer to the last infectious file. It can be a rather complicated task for the less experienced computer users. Even the most experienced users can overlook some cleverly concealed files. To avoid such errors it is better to rely on sophisticated antivirus programs for the purpose of the virus removal. Keep the virus database updated and your antivirus will do the rest for you. However, if CryptoWall is blocking your antivirus suite from working, disconnect your computer from the network and follow the instructions provided below.

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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 virus. 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.

Note: Manual assistance needed implies that one or all of removal tools have failed to remove the threat without manual intervention. In such scenario, please follow the manual removal guide, which is provided below.

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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CryptoWall virus screenshot
CryptoWall virus screenshotCryptoWall virus screenshotCryptoWall virus screenshotCryptoWall virus screenshot

CryptoWall virus manual removal instructions

End these processes:
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Remove these files:
[random].exe

Manual CryptoWall Virus Removal Instructions:

Eliminate CryptoWall 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

    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 completely.

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

Eliminate CryptoWall 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 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.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from CryptoWall 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

Gabriel E. Hall
Gabriel E. Hall

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Source: http://www.2-spyware.com/remove-cryptowall-virus.html

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  • Paul

    OMG, this thing has already showed up on my friends computer..