Qbaa Virus Removal Guide (+Decrypt .qbaa files)

Qbaa – Ransomware

Qbaa is a malicious software application working as typical ransomware. Michael Gillespie, the widely known malware researcher, first discovered this new name in the DJVU ransomware family.

Qbaa was developed for the sole purpose to encrypt all popular file types. Logically, as soon as the file encryption is successfully accomplished, the users are not able to get access to them. Qbaa virus includes its own “.qbaa” to all the encrypted files. For example, the file “price_list.xls”, as soon as crypted by Qbaa, will be titled as “price_list.xls.qbaa”. As soon as the encryption is accomplished, Qbaa puts its own special text file (_readme.txt) into all the folders that save the encrypted files.

The alert mentioned by document asking for the random os very similar to the alerts offered by other ransomware hazards belonging to the DJVU family. The warning generally shows that the data has been encrypted and the only option to get access to it is to use a special standalone key. Regretfully, this statement is definitely real.

The approach to encrypt the files utilized by Qbaa is not completely researched. However, there is no doubt that each computer system owner may be issued an unique decryption key, which is absolutely special. It is very hard to recuperate the data without the appropriate key in place.

“Don’t worry, you can return all your files!”, from _readme.txt message:

One more peculiarity of the Qbaa ransomware is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the total control by the crooks who have actually released the Qbaa infection into the web. In order to get the key and bring back the crucial data, the users are told to get in touch with the frauds through e-mail or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals need to get in touch with the Qbaa authors within 72 hours upon the moment of the data encryption. The alert suggests that by doing so the people will acquire a 50% discount rate, therefore, the ransom quantity falls to $490.

No matter what the amount of the ransom is, we highly recommend that you do not pay the ransom. There is no assurance that these online criminals will keep their guarantees, so they may not care at all what the victims feel about the file encryption, even when the quantity of the ransom is received into their accounts. Thus, paying ransom typically does not lead to an effective healing. So, the users might simply lose their money for nothing.

Likewise, we advise you not to get in touch with the frauds as they instruct. Do not move money into their wallets. There are no applications that could break the Qbaa ransomware or restore the information at no cost. For that reason, the only appropriate decision is to restore the data from possible backups (if available).

Virus Summary

Name Qbaa Ransomware
File Extension qbaa
Type Ransomware
Family DJVU
Short Description The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
Symptoms File encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .qbaa extension to all the files modified by it.
Distribution Method Adware bundles and software cracks
Similar Infections Lokas, Besub, Nusar
Qbaa Removal Tool   GridinSoft Anti-Malware
Qbaa Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections comparable to the Qbaa virus. For example, this specific threat is essentially identical to Brusaf and other ransomware-type infections. These harmful energies have been established in order to encrypt the essential data and reveal the demand for the users to pay the ransom. All these infections utilize the identical algorithm to create the specific key for successful information decryption.

Unless the Qbaa ransomware is still under the development procedure or has got some concealed bugs, it is not possible to restore the information manually. Thus, the only working option to prevent the loss of your important data is to frequently preserve updated backups of all your essential data.

Another essential piece of guidance is to keep the backups on special storage not connected to your primary PC. For instance, you might keep it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your system drive is very risky, since the backup may also be secured by the Qbaa .

Leakages for the Qbaa ransomware attack.

Qbaa uses lots of courses to infiltrate the vulnerable computers. It is not particular what particular technique was utilized in your case, nevertheless, the invasion may take place via the following channels:

  • bundling with third-party programs, generally freeware;
  • spam emails from the unknown senders;
  • sites providing complimentary hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Qbaa virus may camouflage itself as some real application, for example, through the misleading informs demanding setup of some software application upgrade. This is the most typical trick used by the frauds to inject the Qbaa ransomware files into the system. By doing this users partly participate in its installation, without plainly comprehending the risk.

Moreover, the scams may send unsolicited spam email with challenging alerts encouraging individuals to open dubious accessories or click on some download links, for instance, those encouraging the people to open specific images, text files, tax documents and other information.

No doubt, opening these files or clicking the harmful links might basically harm the system. Fake Media Player update notifications may result in the Qbaa ransomware infiltration. Likewise, downloading the broken software application may additionally consist of the ransomware installer. The last but not the least, setup of Qbaa might take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission and even permission.

Preventing the Qbaa ransom virus injection.

Obviously, there is no outright guarantee that your computer will be always devoid of any malware attacks, nevertheless, we want to share some beneficial ideas with you to make it safer. Ensure to pay really attention while searching the web and particularly while getting cost-free programs. Do not open any suspicious e-mail attachments, specifically if the sender is not known to you.

Do not forget that specific freeware installer might likewise contain some other additional apps in the package. These extra applications might be very destructive. It is of utmost importance to keep your anti-virus software and your os in general to be always correctly upgraded.

It is quite rational that downloading pirated software is illegal, nevertheless, in addition, such unapproved software usage may likewise bring major damage to your computer. Hence, do not download any cracked programs. Plus, the truth that your present anti-virus did not secure the system from the Qbaa ransomware is a good reason for you to reassess your options and change to another program that can render the safeguarding functions on a much better level.

Below please find the quotation from the Qbaa text file:

ATTENTION!

 Don't worry, you can return all your files!
 All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
 The only method of recovering files is to purchase decrypt tool and unique key for you.
 This software will decrypt all your encrypted files.
 What guarantees you have?
 You can send one of your encrypted file from your PC and we decrypt it for free.
 But we can decrypt only 1 file for free. File must not contain valuable information.
 You can get and look video overview decrypt tool:
 https://we.tl/t-2P5WrE5b9f
 Price of private key and decrypt software is $980.
 Discount 50% available if you contact us first 72 hours, that's price for you is $490.
 Please note that you'll never restore your data without payment.
 Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.


 To get this software you need write on our e-mail:
 restorealldata@firemail.cc

 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch

 Our Telegram account:
 @datarestore

Screenshot of files with “.qbaa” extension added by the virus:”

Use GridinSoft Anti-Malware to remove Qbaa ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can get GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

3. Press Install button for run GridinSoft Anti-Malware.

3.Once installed, GridinSoft Anti-Malware will automatically run.

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Use Emsisoft Decryptor for restore qbaa files

You can download Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

View Comments

  • I had been attacked by .qbaa ransomware just 24 hrs ago, This is Log Result after i use Emsisoft DJVU Decrypter to decrypt :

    Starting...

    File: E:\BOOTSECT.BAK.qbaa
    Error: No key for New Variant online ID: oMeyM0k2jlg37ENCNU5yhx8us1JkYfgKeC9XI6SS
    Notice: this ID appears to be an online ID, decryption is impossible

    File: G:\Desktop C\BABE-MAMA_-_.psd.qbaa
    Error: No key for New Variant online ID: oMeyM0k2jlg37ENCNU5yhx8us1JkYfgKeC9XI6SS
    Notice: this ID appears to be an online ID, decryption is impossible

    File: G:\Desktop C\Epos Peradaban Indonesia.docx.qbaa
    Error: No key for New Variant online ID: oMeyM0k2jlg37ENCNU5yhx8us1JkYfgKeC9XI6SS
    Notice: this ID appears to be an online ID, decryption is impossible

    File: G:\Desktop C\KATALOGUS SIURAH EMPAT.jpg.qbaa
    Error: No key for New Variant online ID: oMeyM0k2jlg37ENCNU5yhx8us1JkYfgKeC9XI6SS
    Notice: this ID appears to be an online ID, decryption is impossible

    File: G:\Desktop C\LINK WEBSITE - LUKISAN.txt.qbaa
    Error: No key for New Variant online ID: oMeyM0k2jlg37ENCNU5yhx8us1JkYfgKeC9XI6SS
    Notice: this ID appears to be an online ID, decryption is impossible

    This .qbaa ransom attack all my files from adobe photoshop extension until notepad txt and jpg and docx too, it can not decrypted, what should i do? Please give me a solution or a suggestion to get the solving of this trouble ! wait for your reply and response immediately !!

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