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Remove Virus and Restore .BLOQUEADO Files

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Article created to assist in removing ransomware (Hidden Tear) which uses the .bloqueado file extension.

Yet another HiddenTear ransomware variant has been detected out In the wild. The virus uses a cipher to encode the files on the compromised by it computers in order to extort users, speaking Portuguese. The virus changes the extension on the files it encrypts with .BLOQUEADO (locked or blocked) after encryption and they are no longer openable after this has happened. In case your computer has been infected by the virus, it is strongly advisable to read the following article and learn more about how to remove the virus and decrypt your files for free.

Threat Summary



Short DescriptionBased on the HiddenTear variants. Encrypts the files on the compromised computer adding the .bloqueado file extension.
SymptomsUnopenable files, added interfix( and suffix(.bloqueado) to the encrypted files.
Distribution MethodVia an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
Detection Tool See If Your System Has Been Affected by Recuperadados


Malware Removal Tool

User ExperienceJoin our forum to Discuss Recuperadados.
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. Virus – More Information

In order to infect users, this ransomware may use the aid of malicious e-mail attachments in the form of seemingly legitimate files. However, those attachments may inject malicious codes and cause infection and the download of the malicious files of on the user PC. The e-mails may have content that aims to convince users the attachments are legitimate by using social engineering tactics to increase the level of trust of the user.

Once the attachment is opened, may cause an infection on the PC by injecting malicious code in legitimate Windows processes or executing executables that have the same names as legitimate Windows processes, like:

  • explorer.exe
  • svchost.exe
  • dllhost.exe
  • notepad.exe

As soon as those processes are ran, the threat may immediately begin to encrypt the files on the infected computer. It attacks, videos, image file formats, Microsoft Office and Adobe documents and audio files. It may also attack other files such as virtual drives, etc. After this, the virus sets a .bloqueado file extension to the encrypted files along with the added e-mail Recuperadados@protonmail. Fortunately, this threat is now decryptable and users should refer to the instructions below to learn how to remove the virus and decrypt their files for free, instead of having to make a ransom payoff to criminals.

HiddenTear Ransomware Variants – Decoding Instructions

The file-decryption process of HiddenTear ransomware is not as difficult, but you need to be prepared and do it from a safe computer that is powerful. Let’s begin!

Step 1: Download the HiddenTear BruteForcer by clicking on the button below and open the archive:


HiddenTear Bruteforcer


Step 2: Extract the program onto your Desktop or wherever you feel comfortable to easily access it and open it as an administrator:


Step 3: After opening it, you should see the main interface of the brute force. From there, choose “Browser Sample” to select a sample encrypted file of the type of ransomware you are trying to decrypt:


Step 4: After this select the type of ransomware from the down-left expanding menu:


Step 5: Click on the Start Bruteforce button. This may take some time. After the brute forcing is finished and the key is found, copy it and save it somewhere on your PC in a .txt file, you will need it later.

Step 6: Download the HiddenTear Decryptor from the download button below:


HiddenTear Decrypter

Step 7: Extract it and open it, the same way with HiddenTear Bruteforcer. From it’s primary interface, paste the key copied from the BruteForcer, write the type of extension being used by the ransomware and click on the Decrypt button as shown below:


After these steps have been completed, you should immediately copy your files to an external device so that they are safe. After this has been done, we strongly recommend completely wiping your drives and reinstalling Windows on the affected machine.

HiddenTear Decryption – Conclusion

Viruses like the HiddenTear variants are becoming more and more common. Researchers, publish many projects online with the goal to stop ransomware, but this represents an opportunity to coders that develop ransomware and either start infecting users with it or put it up for sale in the deep web. With the expanding of ransomware variants lately, we predict seeing even more infected systems than the year 2015. This is why we advise you to follow our recommendations for securing your computer below:

Advice 1: Make sure to read our general protection tips and try to make them your habit and educated others to do so as well.
Advice 2: Install an advanced anti-malware program that has an often updated real-time shield definitions and ransomware protection.


Malware Removal Tool

Spy Hunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter

Advice 3: Seek out and download specific anti-ransomware software which is reliable.

Advice 4: Backup your files using one of the methods in this article.

Advice 5: : Make sure to use a secure web browser while surfing the world wide web.


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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