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GuardBTC@cock.li ransomware. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Ransomware

GuardBTC@cock.li – a new version of Dharma/CrySiS malware family

Image of GuardBTC@cock.li ransomware

GuardBTC@cock.li is a malicious crypto-virus[1] which belongs to Dharma/CrySiS ransomware family. Malware appends .[GuardBTC@cock.li].java file extension to each targeted files. However, sometimes it can switch to other email address, such as filedecrypt@cock.li or similar. Additionally, malware delivers a ransom note where crooks demand to pay a specific amount of Bitcoins for data recovery.

GuardBTC@cock.li ransomware uses AES encryption algorithm and keeps decryption key on the remote server. While original Dharma/CrySiS viruses are decryptable without a secret key, the recent version, which can also be called as .java ransomware, is not. Therefore, after the attack, you can restore your files only from backups. However, this fact should not motivate you to pay the ransom!

Following data encryption, GuardBTC@cock.li virus leaves a ransom note, explaining what happened to users’ files. The text file reveals that all the data is locked and completely unusable. To obtain access to data, the user must pay a specific sum in Bitcoin cryptocurrency.

However, we do not suggest contacting cybercriminals. Crooks are known to completely ignore victims, even after the demanded amount of ransom is paid. Additionally, you are financing illegal criminal activity which helps culprits extract money from unsuspecting users.

As you can see, having business with criminals might only increase yours loses. Instead of that, focus on GuardBTC@cock.li removal which is needed to use your computer normally and safely again. Malware may have injected malicious code into legit system processes and installed other harmful files on your computer. For this reason, the system becomes vulnerable and attractive to other cyber threats.

Therefore, we advise you to remove GuardBTC@cock.li from your machine using a robust malware removal program such as Reimage. Keep in mind that manual removal is extremely complicated and should only be performed by IT professionals and we want to discourage you from such activity.

However, if you cannot install or run security software, check the instructions at the end of the article and use either Safe Mode with Networking or System Restore method. Additionally, read alternative methods that can help you recover access to at least some of your files.

Avoid dangerous ransomware attacks by paying attention to your email inbox

Cybercriminals rely on inattentive users who open every email or link directed towards them. Spam emails are the most prominent ransomware distribution method. Typically, the author of email pretends to be some important entity from a well-known organization, government employee or a bank representative. He/she actively encourages opening the file which is attached to the email or clicking on the link provided.

Please be careful and examine e-mails from unknown sources attentively. There are always warning signs; you just need to learn to spot them. Additionally, your email provider usually flags up suspicious emails, so do not ignore those warnings.

In addition to spam emails, ransomware can be distributed in other ways:

  • Exploit kits;[2]
  • P2P websites/clients;
  • Fraudulent software downloads;
  • Fake updates/ads/popups;

However, no matter how much precautions you undertake, you are never entirely safe from ransomware attack. Therefore, make sure you keep regular backups on an external drive.

Removal guide for GuardBTC@cock.li ransomware

As we previously mentioned we strongly advise proceeding with manual GuardBTC@cock.li removal as this procedure is complicated, especially for standard computer users. The risk of damaging system files and its registries is exceptionally high; therefore we advise you to pick automatic elimination method.

Security experts from viruset.no[3] warn that you should download a proper security software and remove GuardBTC@cock.li virus before proceeding with file recovery. We advise using a powerful security tool like Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes. Otherwise, your recovered files will be encrypted immediately again.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove GuardBTC@cock.li virus, follow these steps:

Remove GuardBTC@cock.li using Safe Mode with Networking

You should restart your computer in Safe Mode with Networking before trying to proceed with automatic virus deletion.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove GuardBTC@cock.li

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete GuardBTC@cock.li removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove GuardBTC@cock.li using System Restore

System restore can be used to disable the virus and run its automatic elimination too:

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of GuardBTC@cock.li. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that GuardBTC@cock.li removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove GuardBTC@cock.li from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

Unfortunately, there is no decrypter for GuardBTC@cock.li ransomware available yet. However, you can try out these alternative methods which might help you with file recovery.

If your files are encrypted by GuardBTC@cock.li, you can use several methods to restore them:

You can try out Data Recovery Pro

Data Recovery Pro was designed to recover corrupted or broken files. However, in some cases, it might be useful in recovering files affected by ransomware.

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by GuardBTC@cock.li ransomware;
  • Restore them.

Tak advantage of Windows Previous Versions feature

This method will only work if you had System restore function enabled before GuardBTC@cock.li blocked all your files.

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

ShadowExplorer might be useful if file recovery after the GuardBTC@cock.li attack

ShadowExplorer only works if the ransomware has not deleted Shadow Volume Copies in the process of infection.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

No decrypter is available yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from GuardBTC@cock.li and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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References

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