Djvu VirusRansomwareRemoval Guide

Mmpu Virus Removal Guide (+Decrypt .mmpu files)

Mmpu – Ransomware

Mmpu is a harmful software application functioning as typical ransomware. Michael Gillespie, the popular malware researcher, first discovered this new name in the DJVU ransomware family.

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

The message mentioned by text file asking for the random os really similar to the notices provided by other ransomware threats belonging to the DJVU family. The caution generally shows that the data has been secured and the only service to get access to it is to use a distinct standalone key. Regretfully, this declaration is absolutely true.

The technique to encrypt the files used by Mmpu is not entirely looked into. However, there is no doubt that each computer owner may be provided a special decryption key, which is absolutely distinct. It is incredibly difficult to recover the data without the appropriate type in location.

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

message from Mmpu virus

One more peculiarity of the Mmpu infection is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the complete control by the crooks who have launched the Mmpu virus into the world wide web. In order to acquire the key and bring back the important information, the users are told to contact the frauds through e-mail or by telegram and to pay the ransom in the amount of $980.

The message also states that the people must get in touch with the Mmpu authors within 72 hours upon the minute of the data encryption. The alert shows that by doing so the people will obtain a 50% discount, therefore, the ransom quantity drops down to $490.

No matter what the quantity of the ransom is, we highly encourage 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 amount of the ransom is received into their accounts. Hence, paying ransom often does not result in an effective healing. So, the users might merely lose their money for nothing.

Likewise, we advise you not to call the scams as they instruct. Do not move loan into their wallets. There are no applications that might break the Mmpu virus or bring back the data at no charge. Therefore, the only proper choice is to restore the data from possible backups (if offered).

Virus Summary

NameMmpu Ransomware
File Extensionmmpu
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 .mmpu extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Mmpu Removal Tool   GridinSoft Anti-Malware
Mmpu Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now full of infections similar to the Mmpu virus. For instance, this specific risk is basically identical to Brusaf and other ransomware-type infections. These harmful utilities have been developed in order to encrypt the important information and reveal the need for the users to pay the ransom. All these infections use the identical algorithm to create the specific key for effective information decryption.

Unless the Mmpu ransomware is still under the advancement process or has actually got some hidden bugs, it is not possible to restore the data by hand. Therefore, the only working solution to avoid the loss of your important information is to routinely preserve updated backups of all your vital documents.

Another crucial piece of recommendations is to keep the backups on unique storage not connected to your main computer. For instance, you may 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 routine drive is really dangerous, given that the backup might also be secured by the Mmpu ransomware.

Leaks for the Mmpu ransomware attack.

Mmpu utilizes lots of paths to infiltrate the susceptible computer systems. It is not particular what specific method was used in your case, nevertheless, the intrusion may take place via the following channels:

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

There are times when the Mmpu ransomware may camouflage itself as some real application, for instance, through the deceptive alerts requiring setup of some software update. This is the most common trick utilized by the frauds to inject the Mmpu infection files into the system. In this manner users partly take part in its setup, without plainly understanding the threat.

Additionally, the scams may send unsolicited spam email with difficult alerts motivating the people to open suspicious accessories or click on some download links, for instance, those encouraging individuals to open certain images, text files, tax documents and other info.

No doubt, opening these files or clicking the harmful links may basically damage the system. Fake Media Player update notices may result in the Mmpu ransomware infiltration. Likewise, downloading the cracked software may additionally contain the ransomware installer. The last however not the least, setup of Mmpu might happen through some Trojan horses that may be installed stealthily into the system and without the user’s direct consent and even consent.

Avoiding the Mmpu virus injection.

Of course, there is no absolute warranty that your computer will be always without any malware attacks, nevertheless, we would like to share some beneficial tips with you to make it more secure. Make certain to pay really attention while searching the web and specifically while downloading cost-free programs. Do not open any dubious e-mail attachments, especially if the sender is not understood to you.

Do not forget that specific freeware installer may also include some other additional apps in the package. These additional applications may be extremely damaging. It is of utmost value to keep your anti-virus software application and your operating system in basic to be always properly updated.

It is rather logical that downloading pirated apps is illegal, nevertheless, additionally, such unapproved apps usage may likewise bring severe damage to your computer. Thus, do not download any cracked programs. Plus, the reality that your current anti-virus did not protect the system from the Mmpu ransomware is an excellent reason for you to reassess your options and switch to another program that can render the securing functions on a better level.

Below please find the quotation from the Mmpu 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 “.mmpu” extension added by the ransomware:”

Mmpu Ransomware - encrypt files with .mmpu extension

Use GridinSoft Anti-Malware to remove Mmpu 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.
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 mmpu 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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