Mbtf Virus Removal Guide (+Decrypt .mbtf files)

Mbtf – General Info

Mbtf is a harmful software functioning as common ransomware. Michael Gillespie, the widely known virus researcher, very first discovered this new name in the DJVU ransomware family.

Mbtf was developed for the sole function to encrypt all popular file types. Realistically, as quickly as the file encryption is effectively accomplished, the users are unable to get access to them. Mbtf virus adds its own “.mbtf” to all the encrypted data. For example, the file “price_list.xls”, as soon as modified by Mbtf, will be entitled as “price_list.xls.mbtf”. As soon as the encryption is achieved, Mbtf puts its own unique text document (_readme.txt) into all the folders that keep the encrypted files.

The message specified by _readme.txt requesting for the random os really comparable to the notices given by other ransomware threats coming from the DJVU family. The warning essentially indicates that the files have been encrypted and the only solution to get access to it is to use an unique standalone key. Regretfully, this statement is absolutely true.

The method to encrypt the files utilized by Mbtf is not completely looked into. However, there is no doubt that each computer owner may be provided an unique decryption key, which is definitely distinct. It is extremely tough to recuperate the information without the proper type in place.

“Don’t worry, you can return all your files!”, from text file message:

One more peculiarity of the Mbtf virus is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the complete control by the scoundrels who have actually released the Mbtf ransomware into the web. In order to obtain the key and restore the important information, the users are told to contact the scams by means of email or by telegram and to pay the ransom in the quantity of $980.

The message also states that the people ought to get in touch with the Mbtf authors within 72 hours upon the minute of the data encryption. The alert suggests that by doing so individuals will obtain a 50% discount, for that reason, the ransom quantity drops down to $490.

No matter what the amount of the ransom is, we highly encourage that you do not pay the ransom. There is no assurance that these online crooks will keep their pledges, so they may not care at all what the victims feel about the file encryption, even when the quantity of the ransom is gotten into their accounts. For this reason, paying ransom typically does not result in an effective recovery. So, the users might simply lose their money for nothing.

Similarly, we advise you not to get in touch with the scams as they instruct. Do not move loan into their wallets. There are no applications that might crack the Mbtf ransomware or bring back the information at no cost. For that reason, the only correct choice is to restore the information from possible backups (if readily available).

Virus Summary

Name Mbtf Ransomware
File Extension mbtf
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 .mbtf extension to all the files modified by it.
Distribution Method Adware bundles and software cracks
Similar Infections Lokas, Besub, Nusar
Mbtf Removal Tool   GridinSoft Anti-Malware
Mbtf Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Internet is now loaded with infections similar to the Mbtf ransomware. For example, this specific risk is essentially similar to Brusaf and other ransomware-type infections. These harmful utilities have been established in order to secure the important information and express the demand for the users to pay the ransom. All these infections use the similar algorithm to produce the specific key for effective data decryption.

Unless the Mbtf ransomware is still under the development process or has actually got some concealed bugs, it is not possible to restore the data manually. Therefore, the only working option to avoid the loss of your essential data is to regularly keep current backups of all your vital documents.

Another essential piece of recommendations is to keep the backups on special storage not connected to your main device. For instance, you might save it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really dangerous, since the backup may likewise be secured by the Mbtf ransomware.

Leakages for the Mbtf ransomware attack.

Mbtf utilizes numerous courses to infiltrate the susceptible computer systems. It is not specific what specific approach was used in your case, nevertheless, the invasion may occur through the following channels:

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

There are times when the Mbtf ransomware might camouflage itself as some real application, for instance, through the misleading notifies requiring setup of some software update. This is the most typical trick used by the scams to inject the Mbtf virus files into the system. This way users partially take part in its setup, without plainly understanding the risk.

In addition, the scams may send out unsolicited spam email with difficult signals encouraging individuals to open suspicious accessories or click some download links, for instance, those motivating individuals to open specific pictures, text files, tax documents and other info.

No doubt, opening these files or clicking the harmful links may basically harm the system. Fake Adobe Flash Player upgrade alerts may cause the Mbtf ransomware infiltration. Likewise, downloading the broken software application may in addition consist of the ransomware installer. The last but not the least, setup of Mbtf might happen through some Trojan horses that might be installed stealthily into the system and without the user’s direct approval or even consent.

Preventing the Mbtf ransomware injection.

Naturally, there is no outright assurance that your computer will be constantly devoid of any malware attacks, nevertheless, we want to share some beneficial suggestions with you to make it much safer. Make certain to pay very attention while searching the web and especially while downloading cost-free programs. Do not open any suspicious email attachments, specifically if the sender is not known to you.

Do not forget that certain freeware installer may also contain some other additional apps in the bundle. These extra applications might be extremely destructive. It is of utmost significance to keep your anti-virus software application and your operating system in general to be constantly correctly upgraded.

It is rather sensible that downloading cracked software is prohibited, however, in addition, such unauthorized software use may likewise bring severe damage to your PC. Hence, do not download any cracked programs. Plus, the fact that your existing anti-virus did not protect the system from the Mbtf ransomware is a great reason for you to reevaluate 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 Mbtf 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 “.mbtf” extension added by the ransomware:”

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

1.Download GridinSoft Anti-Malware.

You can download 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 mbtf 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.

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