Msop Virus Removal Guide (+Decrypt .msop files)

Msop – Ransomware

Msop is a harmful software working as typical ransomware. Michael Gillespie, the well-known virus researcher, very first found this new name in the DJVU ransomware family.

Msop was created for the sole function to encrypt all popular file types. Rationally, as soon as the file encryption is effectively accomplished, the users are not able to get access to them. Msop virus adds its own “.msop” to all the encrypted data. For example, the file “price_list.xls”, as soon as crypted by Msop, will be titled as “price_list.xls.msop”. As soon as the encryption is achieved, Msop puts its own distinct text document (_readme.txt) into all the folders that keep the encrypted files.

The message mentioned by _readme.txt requesting for the random os extremely comparable to the alerts offered by other ransomware risks belonging to the DJVU family. The warning basically indicates that the files have been encrypted and the only service to get access to it is to use an unique standalone key. Regretfully, this statement is absolutely real.

The approach to secure the files used by Msop is not completely investigated. However, there is no doubt that each computer system owner may be released a special decryption key, which is absolutely distinct. It is exceptionally tough to recover the data without the appropriate type in place.

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

message from Msop virus

One more peculiarity of the Msop ransomware 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 criminals who have introduced the Msop virus into the internet. In order to get the key and bring back the important information, the users are informed to get in touch with the frauds by means of 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 Msop authors within 72 hours upon the moment of the information 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 quantity of the ransom is, we highly advise that you do not pay the ransom. There is no warranty that these online criminals will keep their pledges, so they might not care at all what the victims feel about the file encryption, even when the amount of the ransom is gotten into their accounts. Hence, paying ransom typically does not result in a successful healing. So, the users may just lose their money for nothing.

Similarly, we urge you not to get in touch with the scams as they advise. Do not transfer loan into their wallets. There are no applications that might split the Msop virus or bring back the information for free. Therefore, the only correct decision is to restore the data from possible backups (if readily available).

Virus Summary

NameMsop Ransomware
File Extensionmsop
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 .msop extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsHets, Zobm, Rote
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Internet is now loaded with infections similar to the Msop virus. For example, this particular risk is generally identical to Brusaf and other ransomware-type infections. These destructive utilities have actually been developed in order to secure the important data and reveal the need for the users to pay the ransom. All these infections use the similar algorithm to produce the specific key for successful data decryption.

Unless the Msop ransomware is still under the development procedure or has actually got some concealed bugs, it is not possible to bring back the data manually. Thus, the only working option to prevent the loss of your crucial data is to regularly keep current backups of all your essential data.

Another crucial piece of recommendations is to store the backups on special storage not connected to your primary PC. For example, 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 really risky, because the backup might also be secured by the Msop ransomware.

Leaks for the Msop ransomware attack.

Msop utilizes numerous paths to infiltrate the vulnerable computer systems. It is not certain what specific approach was used in your case, however, the invasion might take place by means of 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 Msop virus may camouflage itself as some real application, for example, through the deceptive signals requiring setup of some software upgrade. This is the most common technique used by the frauds to inject the Msop virus files into the system. This way users partly participate in its installation, without clearly comprehending the threat.

Moreover, the frauds may send unsolicited spam email with difficult alerts encouraging individuals to open suspicious attachments or click some download links, for instance, those encouraging the people to open particular photos, text files, tax documents and other info.

No doubt, opening these files or clicking the harmful links might essentially damage the system. Fake Acrobat Reader upgrade notifications may result in the Msop ransomware seepage. Similarly, downloading the broken software might in addition contain the ransomware installer. The last but not the least, setup of Msop may happen through some Trojan horses that may be installed stealthily into the system and without the user’s direct consent and even permission.

Avoiding the Msop attack.

Of course, there is no outright guarantee that your computer system will be always without any malware attacks, however, we would like to share some helpful ideas with you to make it more secure. Ensure to pay really attention while searching the web and particularly while getting cost-free programs. Do not open any dubious email attachments, particularly if the sender is not known to you.

Do not forget that particular freeware installer might also consist of some other extra apps in the bundle. These additional applications may be extremely damaging. It is of utmost importance to keep your anti-virus software and your operating system in general to be constantly properly updated.

It is rather sensible that downloading cracked programs is prohibited, however, additionally, such unapproved apps usage may likewise bring major damage to your PC. Hence, do not download any cracked programs. Plus, the truth that your present anti-virus did not protect the system from the Msop ransomware is a good reason for you to reconsider your options and switch to another program that can render the securing functions on a better level.

Below please find the quotation from the Msop text file:

 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:
 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:
 Reserve e-mail address to contact us: 

 Our Telegram account:

Screenshot of files with “.msop” extension added by the ransomware:”

Msop Ransomware - encrypt files with .msop extension

Use GridinSoft Anti-Malware to remove Msop 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

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About 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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