.dqb Files Virus (Dharma Ransomware) - Remove It

.dqb Files Virus (Dharma Ransomware) – Remove It

1 Star2 Stars3 Stars4 Stars5 Stars (No Ratings Yet)


The extension .dqb is associated with a computer infection called Dharma ransomware. Dharma .dqb is a data locker ransomware that plagues main computer system settings with the goal to encrypt personal files and demand a ransom fee for their recovery. Since it uses a strong cipher algorithm for files corruption, it leaves encrypted files completely inaccessible. Once it finishes the infection processes .dqb ransomware virus drops a ransom message (RETURN FILES.txt) and loads it on the screen. This message tries to lure you into paying a ransom fee to cybercriminals. Beware that any negotiations with cyber criminals are to be avoided. None of their promises should be taken for granted.

In this article, you will find more information about .dqb files virus as well as a step-by-step guide on how to remove malicious files from the infected system and how to potentially recover files encrypted by this ransomware.

Threat Summary

TypeRansomware, Cryptovirus
Short DescriptionA version of the CrySyS/Dharma ransomware that is designed to encrypt valuable files stored on infected computers and then extort a ransom from victims.
SymptomsImportant files are encrypted and renamed with the extension .dqb
A ransom note appears on PC screen to present ransom payment instructions.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by .dqb


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .dqb.
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.

.dqb Files Virus (Dharma Ransomware) – Distribution and Impact

The .dqb files viurs is a newly discovered cryptovirus that originates from

Dharma ransomware family.

Currently, samples of this threat are lurking around the web. Guesses are that the spread is realized mainly via malspam campaigns. Malspam enables hackers to deliver malicious code on users’ devices with the help of massive email campaigns. Spam emails which are part of attack campaigns usually contain one or more of the following components:

  • A link to compromised web page that is set to download and execute infection files directly on the PC. The URL address to this page may be presented in the form of an in-text link, banner, image, button or full URL address.
  • A malicious file attachment that is presented as legitimate document by the text message. It could be uploaded in a .rar or .zip archive. Such a file could be set to evade active security measures and trick you into running the ransomware on your PC.

Once started on a computer system .dqb ransomware attempts to evade detection by running specific checks for active security measures. When ready, it initiates a long sequence of malicious operations that affect the settings of some essential system components and enable it to encrypt target files.

As a part of Dharma ransomware family, .dqb virus encrypts target files by utilizing the strong cipher algorithm AES. The encryption process is realized after the activation of a built-in cipher module. That module is designed to scan all drives for certain types of files so it can apply changes to their code.

Due to the complexity of applied changes, encrypted files remain inaccessible until their code is reverted back to its original state. Unfortunately, you may not be able to view the information stored by the following files of yours:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

One way to recognize an encrypted file is by the appearance of the extension .dqb in its name. Additionally, you could see the email address btcdecoding@qq.com as an extension. This email address is associated with cyber criminals who stand behind .dqb ransomware attacks. It could be also noticed in the ransom message (RETURN FILES.txt) that appears at the end of the infection process.

We know that you need to restore .dqb files but what we should recommend you is to refrain from transferring your money to cybercriminals. Otherwise, you risk losing both your valuable files and money.

For the sake of your security, it is advisable to clean your computer from present malicious files and consider the help of alternative data recovery methods.

Remove .dqb Ransomware Virus and Attempt to Restore Data

The so-called .dqb files virus is a threat with highly complex code that heavily damages both essential system settings and valuable data. So the only way to use your infected system securely again is to remove all malicious files and objects created by the ransomware. For the purpose, you could follow our step-by-step removal guide.

In the event that you want to attempt to restore .dqb files with the help of alternative data recovery methods, do check step four – Try to Restore files encrypted by .dqb Files Virus. We remind you to back up all encrypted files to an external drive before the recovery process.

Gergana Ivanova

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for three years, researching malware and reporting on the latest infections.

More Posts

Follow Me:
Google Plus

Leave a Comment

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload CAPTCHA.

Share on Facebook Share
Share on Twitter Tweet
Share on Google Plus Share
Share on Linkedin Share
Share on Digg Share
Share on Reddit Share
Share on Stumbleupon Share