The Tyson Ransomware falls under the Chaos ransomware family. A harmful program of this type encrypts all user’s data on the PC (images, documents, excel sheets, audio files, videos, etc) and adds its own extension to every file, leaving the DECRYPTION INSTRUCTIONS.txt text files in each directory which contains the encrypted files.
What is known about the Tyson Ransomware?
☝️ Tyson is a Chaos family agent.
Tyson will add its own .tyson extension to every file’s title. For instance, a file entitled “photo.jpg” will be turned into “photo.jpg.tyson”. Likewise, the Excel file with the name “table.xlsx” will end up as “table.xlsx.tyson”, and so on.
In each directory containing the encrypted files, a DECRYPTION INSTRUCTIONS.txt text file will appear. It is a ransom money memo. It contains information on the ways of contacting the racketeers and some other remarks. The ransom note most probably contains a description of how to buy the decryption tool from the racketeers. That is how they do it.
Tyson Overview:
| Name | Tyson Ransomware |
| Ransomware family1 | Chaos ransomware |
| Extension | .tyson |
| Ransomware note | DECRYPTION INSTRUCTIONS.txt |
| Ransom | $65 |
| Detection | Trojan:Win32/Tnega!MSR Removal, Win32:Adware-DNA [Adw] Virus Removal, Win32:Secat [Trj] Virus Removal |
| Symptoms | Your files (photos, videos, documents) have a .tyson extension and you can’t open them. |
| Fix Tool | See If Your System Has Been Affected by Tyson virus |
The DECRYPTION INSTRUCTIONS.txt file coming in package with the Tyson malware provides the following dispiriting information:
All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won\'t be able to decrypt them without our help. What can I do to get my files back? You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer. The price for the software is $300. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - https://www.coinmama.com Bitpanda - https://www.bitpanda.com Payment information Amount: 0.0051 BTC Bitcoin Address: 19DpJAWr6NCVT2oAnWieozQPsRK7Bj83r4
In the screenshot below, you can see what a folder with files encrypted by the Tyson looks like. Each filename has the “.tyson” extension added to it.
How did my machine catch Tyson ransomware?
There are many possible ways of ransomware infiltration.
Nowadays, there are three most exploited methods for criminals to have ransomware working in your system. These are email spam, Trojan introduction and peer-to-peer networks.
- If you open your inbox and see emails that look just like notifications from utility services providers, postal agencies like FedEx, Internet providers, and whatnot, but whose “from” field is strange to you, beware of opening those emails. They are very likely to have a harmful item attached to them. Thus it is even more dangerous to download any attachments that come with letters like these.
- Another option for ransom hunters is a Trojan horse scheme. A Trojan is a program that gets into your PC disguised as something legal. For instance, you download an installer of some program you want or an update for some service. But what is unboxed reveals itself a harmful agent that encrypts your data. Since the installation wizard can have any title and any icon, you’d better be sure that you can trust the resource of the files you’re downloading. The best way is to trust the software companies’ official websites.
- As for the peer-to-peer file transfer protocols like torrent trackers or eMule, the danger is that they are even more trust-based than the rest of the Web. You can never guess what you download until you get it. Our suggestion is that you use trustworthy resources. Also, it is a good idea to scan the folder containing the downloaded objects with the anti-malware utility as soon as the downloading is finished.
How do I get rid of ransomware?
It is crucial to inform you that besides encrypting your data, the Tyson Ransomware will most likely install Vidar Stealer on your PC to get access to credentials to different accounts (including cryptocurrency wallets). That program can derive your logins and passwords from your browser’s auto-filling data.
How do I avert ransomware infiltration?
Tyson ransomware doesn’t have a superpower, so as any similar malware.
You can protect your system from ransomware infiltration within several easy steps:
- Never open any letters from unknown mailers with strange addresses, or with content that has nothing to do with something you are expecting (how can you win in a money prize draw without participating in it?). In case the email subject is likely something you are expecting, check all elements of the questionable letter with caution. A fake letter will always have a mistake.
- Do not use cracked or unknown programs. Trojan viruses are often shared as an element of cracked software, most likely under the guise of “patch” which prevents the license check. Understandably, potentially dangerous programs are very hard to tell from trustworthy software, because trojans sometimes have the functionality you seek. Try to find information on this program on the anti-malware forums, but the optimal solution is not to use such software.
FAQ
🤔 How can I open “.tyson” files?Is it possible to open“.tyson” files?
There’s no way to do it, unless the files “.tyson” files are decrypted.
🤔 The encrypted files are very important to me. How can I decrypt them quickly?
Hopefully, you have made a copy of those important files. Otherwise, you might try to employ System Restore. The only question is whether you have saved any Restore Points that would be helpful now. There are other ways to beat ransomware, but they take time.
🤔 What actions should I take if the Tyson ransomware has blocked my computer and I can’t get the activation code.
🤔 What can I do right now?
Some of the blocked files can be found elsewhere.
- If you exchanged your important files through email, you could still download them from your online mailbox.
- You might have shared images or videos with your friends or relatives. Simply ask them to send those pictures back to you.
- If you have initially downloaded any of your files from the Internet, you can try doing it again.
- Your messengers, social media pages, and cloud storage might have all those files too.
- Maybe you still have the needed files on your old computer, a notebook, cellphone, memory stick, etc.
USEFUL TIP: You can employ data recovery utilities2 to get your lost data back since ransomware blocks the copies of your files, removing the original ones. In the tutorial below, you can learn how to use PhotoRec for such a recovery, but be advised: you can do it only after you eradicate the virus with an anti-malware program.

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