Djvu VirusRansomwareRemoval Guide

Ssoi Virus Removal Guide (+Decrypt .ssoi files)

Ssoi Virus Ransomware

Ssoi is a destructive software application working as typical ransomware. Michael Gillespie, the popular malware researcher, very first discovered this new name in the DJVU ransomware family.

Ssoi was developed for the sole purpose to encrypt all popular file types. Realistically, as soon as the file encryption is effectively achieved, the users are not able to get access to them. Ssoi virus includes its own “.ssoi” to all the encrypted data. For example, the file “price_list.xls”, as soon as modified by Ssoi, will be titled as “price_list.xls.ssoi”. When the encryption is accomplished, Ssoi puts its own unique text file (_readme.txt) into all the folders that store the encrypted files.

The alert stated by text file asking for the random os extremely comparable to the alerts provided by other ransomware hazards belonging to the DJVU family. The warning essentially shows that the files have been encrypted and the only service to get access to it is to use a distinct standalone key. Regretfully, this statement is absolutely real.

The technique to encrypt the files used by Ssoi is not totally looked into. However, there is no doubt that each computer system owner might be released a special decryption key, which is definitely distinct. It is very difficult to recuperate the data without the appropriate type in location.

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

message from Ssoi virus

One more peculiarity of the Ssoi 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 complete control by the scoundrels who have actually introduced the Ssoi ransomware into the world wide web. In order to obtain the key and restore the crucial data, the users are told to contact the scams by means of e-mail or by telegram and to pay the ransom in the amount of $980.

The message likewise says that individuals ought to get in touch with the Ssoi authors within 72 hours upon the moment of the data encryption. The alert indicates that by doing so the people will acquire a 50% discount rate, for that reason, the ransom amount falls to $490.

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

Similarly, we prompt you not to contact the frauds as they advise. Do not transfer cash into their wallets. There are no applications that could break the Ssoi ransomware or bring back the data for free. For that reason, the only appropriate decision is to bring back the information from possible backups (if readily available).

Virus Summary

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

Do not forget that the Web is now loaded with infections comparable to the Ssoi virus. For instance, this particular hazard is generally identical to Brusaf and other ransomware-type infections. These destructive utilities have actually been established in order to secure the important information and express the need for the users to pay the ransom. All these infections use the similar algorithm to create the particular key for successful information decryption.

Unless the Ssoi ransomware is still under the advancement 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 important documents.

Another essential piece of recommendations is to store the backups on unique storage not connected to your primary PC. For instance, 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 routine drive is extremely risky, given that the backup might also be encrypted by the Ssoi ransomware.

Leakages for the Ssoi ransomware attack.

Ssoi utilizes lots of paths to penetrate the susceptible computers. It is not particular what specific technique was used in your case, nevertheless, the intrusion may happen through the following channels:

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

There are times when the Ssoi ransomware may disguise itself as some authentic application, for example, through the misleading informs requiring setup of some software application update. This is the most common technique utilized by the scams to inject the Ssoi virus files into the system. This way users partially participate in its setup, without plainly comprehending the danger.

Additionally, the scams may send unsolicited spam email with difficult notifies encouraging individuals to open dubious accessories or click on some download links, for instance, those encouraging individuals to open certain images, text files, tax files and other information.

No doubt, opening these files or clicking the harmful links may essentially harm the system. Fake Media Player update notices may lead to the Ssoi ransomware infiltration. Similarly, downloading the broken software application may additionally include the ransomware installer. The last however not the least, installation of Ssoi might take place through some Trojan horses that may be installed stealthily into the system and without the user’s direct authorization or even consent.

Preventing the Ssoi virus injection.

Of course, there is no outright guarantee that your computer will be always free of any malware attacks, nevertheless, we wish to share some helpful ideas with you to make it safer. Ensure to pay very attention while searching the web and especially while downloading cost-free programs. Do not open any suspicious email attachments, especially if the sender is not understood to you.

Do not forget that specific freeware installer may also include some other extra apps in the package. These extra applications may be very damaging. It is of utmost significance to keep your anti-virus software application and your os in general to be constantly appropriately upgraded.

It is quite logical that downloading cracked programs is illegal, however, furthermore, such unauthorized programs use may likewise bring major damage to your system. Thus, do not download any cracked programs. Plus, the truth that your existing anti-virus did not secure the system from the Ssoi ransomware is a great reason for you to reassess your choices and change to another program that can render the safeguarding functions on a better level.

Below please find the quotation from the Ssoi 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 “.ssoi” extension added by the ransomware:”

Ssoi Ransomware - encrypt files with .ssoi extension

Use GridinSoft Anti-Malware to remove Ssoi 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 ssoi 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 Daniel
    I got this .ssoi virus a few months ago and I’ve tried all the advice on Internet, but nothing works. There’s always something that’s in the way. You first have to buy the program, then you don’t know if it’s going to work or not. Sometimes you already have the program, but it still doesn’t work. I’ve downloaded Emsisoft Decryptor Program that’s “working”, but gives me the following error: File: D:\Sort of done\Photos\IMG_20211207_132710.jpg.ssoi
    Error: The remote name could not be resolved: ‘’
    Can you help and give advice please?

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