Djvu VirusRansomwareRemoval Guide

Mmvb Virus Removal Guide (+Decrypt .mmvb files)

Mmvb – General Info

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

Mmvb was created for the sole purpose to encrypt all popular file types. Rationally, as quickly as the file encryption is effectively achieved, the users are not able to get access to them. Mmvb ransomware adds its own “.mmvb” to all the encrypted files. For example, the file “price_list.xls”, once modified by Mmvb, will be titled as “price_list.xls.mmvb”. As soon as the file encryption is achieved, Mmvb puts its own special text document (_readme.txt) into all the folders that keep the encrypted files.

The message mentioned by _readme.txt asking for the random os extremely similar to the notices given by other ransomware risks coming from the DJVU family. The caution basically indicates that the files have been secured and the only solution to get access to it is to use a distinct standalone key. Regretfully, this declaration is definitely true.

The method to encrypt the files used by Mmvb is not completely looked into. However, there is no doubt that each computer system owner might be issued an unique decryption key, which is absolutely distinct. It is exceptionally hard to recuperate the data without the appropriate type in location.

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

message from Mmvb virus

One more peculiarity of the Mmvb virus is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the total control by the crooks who have actually introduced the Mmvb infection into the world wide web. In order to obtain the key and restore the essential data, the users are informed to get in touch with the scams via email or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals ought to call the Mmvb authors within 72 hours upon the minute of the information file encryption. The alert shows that by doing so individuals will acquire a 50% discount, for that reason, the ransom quantity falls to $490.

No matter what the quantity of the ransom is, we highly recommend that you do not pay the ransom. There is no guarantee that these online criminals will keep their pledges, so they might not care at all what the victims feel about the encryption, even when the quantity of the ransom is gotten into their accounts. Thus, paying ransom frequently does not result in an effective recovery. So, the users might merely lose their money for nothing.

Likewise, we advise you not to call the scams as they advise. Do not move loan into their wallets. There are no applications that might split the Mmvb virus or restore the information at no charge. Therefore, the only right decision is to restore the information from possible backups (if offered).

Virus Summary

NameMmvb Ransomware
File Extensionmmvb
TypeRansomware
FamilyDJVU
Short DescriptionThe 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.
SymptomsFile 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 .mmvb extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Mmvb Removal Tool   GridinSoft Anti-Malware
Mmvb Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections comparable to the Mmvb ransomware. For instance, this particular hazard is basically similar to Brusaf and other ransomware-type infections. These harmful energies have been developed in order to encrypt the crucial information and express the demand for the users to pay the ransom. All these infections use the similar algorithm to create the specific key for successful information decryption.

Unless the Mmvb ransomware is still under the advancement procedure or has got some concealed bugs, it is not possible to bring back the data manually. Thus, the only working service to avoid the loss of your essential data is to regularly maintain updated backups of all your crucial data.

Another important piece of recommendations is to store the backups on unique storage not linked to your main PC. For example, you might save it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your system drive is really dangerous, since the backup might also be secured by the Mmvb infection.

Leaks for the Mmvb ransomware attack.

Mmvb uses lots of paths to infiltrate the susceptible computer systems. It is not specific what particular method was used in your case, nevertheless, the intrusion may happen through the following channels:

  • bundling with third-party programs, generally free apps;
  • spam e-mails from the unidentified senders;
  • sites supplying free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Mmvb ransomware may camouflage itself as some authentic application, for instance, through the misleading signals demanding setup of some software upgrade. This is the most typical trick used by the scams to inject the Mmvb virus files into the system. By doing this users partly participate in its installation, without clearly comprehending the risk.

Furthermore, the scams may send unsolicited spam e-mail with tricky alerts encouraging the people to open dubious attachments or click on some download links, for instance, those motivating individuals to open specific images, text files, tax documents and other information.

No doubt, opening these files or clicking on the malicious links might essentially harm the system. Fake Acrobat Reader update notices may lead to the Mmvb ransomware infiltration. Similarly, downloading the broken software application may additionally consist of the ransomware installer. The last however not the least, setup of Mmvb may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct approval or perhaps authorization.

Preventing the Mmvb ransomware injection.

Obviously, there is no absolute assurance that your computer system will be constantly without any malware attacks, nevertheless, we would like to share some beneficial tips with you to make it more secure. Make sure to pay extremely attention while searching the web and especially while downloading cost-free programs. Do not open any dubious e-mail accessories, specifically if the sender is not understood to you.

Do not forget that specific freeware installer might also contain some other additional apps in the bundle. These additional applications may be very damaging. It is of utmost significance to keep your anti-virus software and your os in basic to be constantly correctly upgraded.

It is rather sensible that downloading cracked programs is unlawful, however, additionally, such unapproved software application use may likewise bring major damage to your PC. Hence, do not download any broken programs. Plus, the reality that your current anti-virus did not protect the system from the Mmvb ransomware is a good factor for you to reevaluate your options and change to another program that can render the securing functions on a much better level.

Below please find the quotation from the Mmvb 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 “.mmvb” extension added by the ransomware:”

Mmvb Ransomware - encrypt files with .mmvb extension

Use GridinSoft Anti-Malware to remove Mmvb 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.
GridinSoft Anti-Malware
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.
GridinSoft Anti-Malware Setup

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

GridinSoft Anti-Malware Install

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

GridinSoft Anti-Malware  Start

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.
GridinSoft Anti-Malware Scan

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.
GridinSoft Anti-Malware Scan Result

Use Emsisoft Decryptor for restore mmvb files

You can get 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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