Djvu VirusRansomwareRemoval Guide

Jypo Virus Removal Guide (+Decrypt .jypo files)

Jypo – General Info

Jypo is a destructive software application working as common ransomware. Michael Gillespie, the widely known malware researcher, very first found this new name in the DJVU ransomware family.

Jypo was developed for the sole purpose to encrypt all popular file types. Rationally, as quickly as the encryption is effectively accomplished, the users are not able to get access to them. Jypo virus adds its own “.jypo” to all the encrypted data. For instance, the file “price_list.xls”, when crypted by Jypo, will be entitled as “price_list.xls.jypo”. When the file encryption is achieved, Jypo puts its own unique text file (_readme.txt) into all the folders that keep the encrypted files.

The message specified by document requesting for the random os really similar to the notices provided by other ransomware hazards coming from the DJVU family. The warning essentially indicates that the files have been secured and the only service to get access to it is to use an unique standalone key. Regretfully, this declaration is definitely true.

The technique to encrypt the files utilized by Jypo is not entirely investigated. However, there is no doubt that each computer owner might be issued a special decryption key, which is definitely unique. It is very difficult to recover the information without the proper type in location.

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

Don't worry, you can return all your files! virus

One more peculiarity of the Jypo virus is that the users are not able to get access to the key. The decrypting key is hosted on an unique server under the total control by the crooks who have introduced the Jypo infection into the world wide web. In order to get the key and restore the essential data, the users are told to contact the frauds through e-mail or by telegram and to pay the ransom in the quantity of $980.

The message also says that the people must get in touch with the Jypo authors within 72 hours upon the moment of the data encryption. The alert indicates that by doing so the people will get a 50% discount, for that reason, the ransom quantity drops down to $490.

No matter what the quantity of the ransom is, we strongly encourage that you do not pay the ransom. There is no assurance that these online crooks will keep their promises, so they may not care at all what the victims feel about the encryption, even when the quantity of the ransom is gotten into their accounts. Hence, paying ransom frequently does not lead to a successful healing. So, the users may just lose their money for absolutely nothing.

Similarly, we prompt you not to contact the scams as they advise. Do not transfer loan into their wallets. There are no applications that could break the Jypo virus or restore the information at no cost. For that reason, the only appropriate choice is to restore the data from possible backups (if readily available).

Virus Summary

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

Do not forget that the Internet is now filled with infections similar to the Jypo virus. For example, this particular hazard is basically similar to Brusaf and other ransomware-type infections. These destructive 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 generate the specific key for successful information decryption.

Unless the Jypo ransomware is still under the advancement process or has got some concealed bugs, it is not possible to bring back the data by hand. Therefore, the only working solution to prevent the loss of your crucial information is to frequently preserve updated backups of all your vital documents.

Another crucial piece of guidance is to save the backups on unique storage not linked to your main PC. For example, 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 extremely risky, considering that the backup may likewise be encrypted by the Jypo virus.

Leaks for the Jypo ransomware attack.

Jypo uses many courses to penetrate the vulnerable computers. It is not certain what particular technique was utilized in your case, nevertheless, the intrusion may happen through the following channels:

  • bundling with third-party programs, mainly free apps;
  • spam e-mails from the unknown senders;
  • websites providing complimentary hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Jypo might camouflage itself as some authentic application, for example, through the deceptive alerts demanding setup of some software update. This is the most typical technique used by the frauds to inject the Jypo virus files into the system. In this manner users partially participate in its installation, without clearly comprehending the threat.

Furthermore, the frauds might send unsolicited spam e-mail with tricky signals encouraging individuals to open suspicious attachments or click some download links, for instance, those encouraging individuals to open particular photos, text files, tax documents and other information.

No doubt, opening these files or clicking the harmful links might essentially harm the system. Fake Acrobat Reader upgrade notices may lead to the Jypo ransomware infiltration. Similarly, downloading the split software may in addition consist of the ransomware installer. The last however not the least, setup of Jypo may happen through some Trojan horses that may be installed stealthily into the system and without the user’s direct authorization or even permission.

Preventing the Jypo ransomware injection.

Naturally, there is no outright assurance that your computer system will be always free of any malware attacks, nevertheless, we would like to share some useful tips with you to make it safer. Make sure to pay extremely close attention while searching the web and specifically while getting cost-free programs. Do not open any suspicious e-mail accessories, especially if the sender is not understood to you.

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

It is rather rational that downloading cracked apps is unlawful, however, furthermore, such unapproved apps usage might also bring major damage to your system. Thus, do not download any cracked programs. Plus, the truth that your present anti-virus did not protect the system from the Jypo ransomware is an excellent reason for you to reevaluate your choices and change to another program that can render the safeguarding functions on a better level.

Below please find the quotation from the Jypo 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 “.jypo” extension added by the ransomware:”

Jypo Ransomware - encrypt files with .jypo extension

Use GridinSoft Anti-Malware to remove Jypo 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 jypo 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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One Comment

  1. Hi there! Let me ask you how to restore back my file after effected with jypo virus! Pls help me simple way to do!

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