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CryptoLuck ransomware virus. How to delete? (Removal tutorial)

removal by Ugnius Kiguolis - - | Type: Ransomware

The characteristics of CryptoLuck ransomware virus

CryptoLuck virus, also known as Luck, belongs to file-encrypting virus category. Ransomware type viruses are created to damage computer users’ personal files and demand paying the ransom. This malware uses advanced infiltration techniques to get inside computers and encrypts files using strong AES and RSA algorithms. To the encoded data it appends .[victim_id]_luck file extension which allows victims to distinguish corrupted files from the safe ones. However, it’s doubtful that you will find lots of free files because CryptoLuck ransomware targets the most popular file types such as MS Office, various audio, video or picture files. After successful data encryption, the malware change desktop’s wallpaper and drops a ransom note called @WARNING_FILES_ARE_ENCRYPTED.[victim_id].txt. The ransom note includes necessary information about data decryption and shows the Decryption Wizard. Victims have to pay 2.1 Bitcoin ransom within 72 hours and the wizard is supposed to restore all files automatically. After the deadline, the unique decryption key will be deleted, and victims lose their possibility to get back their files. It may be true; however, we recommend trying additional data recovery methods instead. Before looking for alternative ways to restore files, you have to remove CryptoLuck from the computer. For this task employ Reimage or other strong antivirus program and scan computer’s system. Keep in mind that virus may block access to the security tools, so you should check our prepared instructions at the end of the article.

However, some users may not see the Decryption Wizard window. This statement is noted in the ransom note. Then hackers suggest users disabling Firewalls and antivirus programs. This gives us a feeling that CryptoLuck removal is not a hard task for malware removal tools. However, the virus seems familiar to other well-known viruses – CryptoLocker and Locky. Malware drops almost identical ransom note and desktop picture like CryptoLocker; the only difference is the payment size and the title of the ransom note. Talking about malware distribution techniques, CryptoLuck ransomware seems similar to the Locky virus. Both of them uses RIG exploit kit to get inside the computers.

CryptoLuck virus encrypts personal files

Malware distribution strategies

As we already told you, one of the malware distribution techniques are RIG-E (Empire) exploit kit. This tool is spread via malicious ads placed on compromised websites such as adult-themed sites. Computers are infected when users click on malware-laden ad – then the malicious file is dropped straight into the system and starts damaging files. However, it’s not the only way how CryptoLuck virus is distributed. It may also affect computers using legitimate GoogleUpdate.exe files and DLL hijacking. The latter methods allow spreading malware in the wider range. Cyber security specialists noticed an increase in successful ransomware attacks and remind users to stay safe online. Protecting computer with a reputable antivirus program will decrease the possibility of the attack. However, the more concerns are about data protection. It’s crucial to make data backups regularly and store them in external devices. Users, who have data backups, do not need to worry about data recovery and they do not even consider paying the ransom for cyber criminals. Ransomware attacks always are unexpected, so you should be prepared for the worst.

How to remove CryptoLuck ransomware?

CryptoLuck removal should be initiated as soon as you see changed background and noticed a ransom note. As long as malware stays inside, your computer’s system remains vulnerable. Besides, malware may install or let other malicious applications to step in your PC. For virus elimination, we recommend using Reimage or Malwarebytes Malwarebytes. These strong malware removal utilities will detect and remove all malicious components from the system. However, you may face some difficulties. Malware may prevent from installing, updating or accessing antivirus programs. However, at the end of the article, you will find a step-by-step guide on how to deal with these problems and remove CryptoLuck. Once it’s gone, recover your files from backups or try additional methods presented below.

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To remove CryptoLuck virus, follow these steps:

Eliminate CryptoLuck using Safe Mode with Networking

  • 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 CryptoLuck

    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 CryptoLuck completely.

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

Eliminate CryptoLuck using System Restore

  • 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 CryptoLuck 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 CryptoLuck.

Bonus: Restore your files

Using the tutorial provided above you should be able to eliminate CryptoLuck from the infected device. novirus.uk team has also prepared an in-depth data recovery guide which you will also find above.

If your files have been encrypted by CryptoLuck virus, try additional data recovery options instead of paying the ransom. Hopefully, at least your most important files will be recovered. Besides, if you have data backups, simply plug in the device to the computer and copy necessary files.

There are a couple of methods you can apply to recover data encrypted by CryptoLuck:

Restore files using Data Recovery Pro

It’s a professional tool which recovers a wide range of encrypted, corrupted or lost files. To use this follow the steps below:

  • Download Data Recovery Pro;
  • Install Data Recovery on your computer following the steps indicated in the software’s Setup;
  • Run the program to scan your device for the data encrypted by CryptoLuck ransomware;
  • Recover the data.

Restore individual files using Windows Previous Versions feature

This method allows restoring only individual files; therefore, you won’t be able to decrypt all your files. Before using this method, make sure that System Restore function has been enabled before ransomware attack. If you haven’t enabled this feature, this method won’t work for you.

  • Right-click on the encrypted document you want to recover;
  • Click “Properties” and navigate to “Previous versions” tab;
  • In the “Folder versions” section look for the available file copies. Choose the desired version and press “Restore”.

Restore files using ShadowExplorer

If CryptoLuck ransomware hasn’t deleted Volume Shadow Copies, this  tool will be able to recover some of your files. Follow the instructions below:

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Install Shadow Explorer on your computer following the instructions in the software’s Setup Wizard;
  • Run the program. Navigate to the menu on the top-left corner and select a disk containing your encrypted files. Look through the available folders;
  • When you find the folder you want to recover, right-click it and select “Export”. Also, choose where the recovered data will be stored.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from CryptoLuck and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Malwarebytes Malwarebytes or Plumbytes Anti-MalwareNorton Internet Security.

About the author

Ugnius Kiguolis
Ugnius Kiguolis

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Source: https://www.2-spyware.com/remove-cryptoluck-ransomware-virus.html

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