SSOI Ransomware. How to decrypt .ssoi files?

If you can’t open your images, documents, or other files and see the .ssoi extension on them, your system is definitely infected with Ssoi ransomware. It pertains to STOP/Djvu ransomware group

Ssoi ransomware ciphers personal files located on the victim’s PC with the extension “.ssoi” and after that generates the ransom note in each folder which contains encrypted files. The instructions are put on the victim’s PC in the “readme.txt” file. Its task is basically comparable to other examples of the same family: Hfgd, Kkia, Mmuz.

What is Ssoi Ransomware?

NameSsoi Virus
Ransomware family1DJVU/STOP2 ransomware
Ransomware note_readme.txt
RansomFrom $490 to $980,
SymptomsThe images, videos, and other documents have the “.ssoi” extension and cannot be opened by any programs
Fix Tool Trojan Killer – ransomware infections tool. 14-day free trial.

Ssoi is file-encrypting ransomware that prevents regular access to your text files, Excel tables, videos and pics by encrypting them. It marks the ciphered files with the “.ssoi” extension. Then Ssoi ransomware adds a ransom note (readme.txt) to each folder. In this note, you can see the instructions to pay the ransom ($490-$980 in Bitcoin) to a certain Bitcoin wallet. The AES-256 or RSA-1028 cipher it utilizes to cipher the documents is not decryptable with modern computers. Even quantum computers that already exist will spend thousands of years to find the decryption key.

How dangerous is the Ssoi ransomware?

When Ssoi ransomware appears on your PC, it will check your disks for images, videos, and important documents. It encrypt] all widespread file formats- .psd, .doc, .docx, .xls, .xlsx, .pdf, .jpeg, .png, et cetera. When these documents are located, the ransomware will cipher them and also change their extension to “.ssoi” so that you understand what happened.

After the Ssoi ransomware ciphered the data on your computer, it will generate the last “readme.txt” file on the main screen. In addition to the ransom payment instructions, the victims also see the emails to contact the fraudsters – and

Here is the ransom note that the Ssoi ransomware shows to its victims:


Don't worry, you can return all your files!
All your files like pictures, 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:

How did the Ssoi ransomware get on my computer?

The Ssoi ransomware spreads by placing links to get hacked programs or games. Cybercriminals that distribute this ransomware are very foxy, and try to correspond with modern trends. New games introductions, new popular films – Ssoi creators make whatever to get their victims on that. Some of the most common methods these criminals utilize is one-day sites with torrent downloading links. Nonetheless, pursuing the modern-day things is not the only tactic these criminals use. Methods that have already become classic, such as email spamming, are also normal for STOP/Djvu ransomware spreading.

Malicious email spam
The example of email spamming that may lead to Ssoi ransomware injection

Preventing this ransomware does not require a lot of initiative. Considering the regular principles of computer hygiene will significantly decrease all dangers. Remember that starting all files you get on e-mail is not a good option. Even worse situation is to enable macros in Microsoft Office documents. But it is much better to avoid the malware attack at the moment when you have only opened the e-mail message. Examining the sender’s address can point out a lot about what you can expect, as well as when you see things like “”– it is likely a genuine e-mail. On the other hand, stuff that tries to resemble Amazon or FedEx shipment notice, but uses the e-mail address of “”– must make you get on the alarm. Above, you can see the example of such a message.

Outlaw sources of different digital things require some additional description. Going against copyright regulation surely throws you to the danger of being fined. Nevertheless, using torrent trackers or third-party sites to download “free” programs likewise exposes you to a wide range of malware. Nobody can oversee undisclosed people who launch the torrent seeding or publish the hacked program version on the site with pirated software.

Ssoi virus removal instructions.

Download Trojan Killer Portable

Trojan Killer Portable Download

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This guide below shows how to use Trojan Killer Portable3 for Ssoi virus detection and removal:

  • STEP 1. Download and install Trojan Killer.

  • STEP 2. Click on "Finish".

  • STEP 3. Wait until necessary updates are downloaded and installed.

  • STEP 4. Select computer scan type.

  • STEP 5. The software will begin scanning your computer.

  • STEP 6. Click on "Cure PC".

Restore the files encrypted by the Ssoi ransomware

In most cases, it’s impossible to recover the files encrypted by the Ssoi ransomware because the private key needed to unlock the encrypted files is only available through cybercriminals. However, we’ve listed one option you can use to recover your files below.

Warning! Make sure you remove the ransomware from your system first, otherwise, it will repeatedly encrypt your files.

If your files were encrypted with an offline key, there is a chance you can recover them by using Emsisoft Decryptor for the STOP/Djvu decryption tool. Follow the below guide to recover your files using the Emsisoft Decryptor for STOP/Djvu.

  1. You can download Emsisoft Decryptor for STOP Djvu by clicking this link.
  2. When the decryptor has finished downloading, double-click on “decrypt_STOPDjvu.exe” to run this program on your computer.
  3. Click the “Decrypt” button to start the decryption process for Ssoi files. The screen will switch to a status view, informing you about your files’ current process and decryption status.
  4. The decryptor will inform you once the decryption process will be finished. If you require the report for your records, you can save it by clicking the “Save log” button.

If the Emsisoft Decryptor can’t decrypt your .ssoi files and you do not plan on paying the ransom, it is advised that you make an image of the encrypted drives so that you can decrypt them in the future.

Your computer should now be free of the Ssoi ransomware infection. However, suppose your current antivirus allowed this malicious program on your computer. In that case, you might want to consider purchasing the full-featured version of Trojan Killer to protect against these types of threats in the future.

SSOI Ransomware — How To Remove Virus & Decrypt Files?

Name: SSOI Virus

Description: SSOI Virus is a STOP/DJVU family of ransomware-type virus. It encrypts files, video, photos, documents. Encrypted files can be tracked by a specific ssoi extension. SSOI ransomware asks victims for a ransom fee about $490 - $980 in Bitcoin.

Offer price: 480

Currency: $

Operating System: Windows

Application Category: Virus

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About William Reddy

I am from Ireland. My parents bought me a computer when I was 11, and several months after I have got a virus on this PC. I decided to enter the INSA Centre Val de Loire university after being graduated from the school. This French educational institution was offering a brand-new cybersecurity course. After getting the master's degree in cybersecurity, I've started working as a virus analyst in a little anti-malware vendor.