RYUK Ransomware Recovery - A Nightmare for Big Corporations

Has RYUK Ransomware infected your files? It is a company-wide emergency Targeting corporations and enterprises, the RYUK Ransomware attack is the costliest any business can face! This page has all of the essential information about the RYUK ransomware , decryption, recovery, removal and statistics. Please review the information below or contact our support team, to get fast help with RYUK ransomware recovery.

RYUK Ransomware Recovery

How do I know if RYUK has infected my system?

Operating since August 2018, the Russia-based criminal mastermind group SPIDER WIZARD is notoriously the most successful gangs with a team of hackers infiltrating large corporations and enterprises.

It is the same group known for the Trickbot banking malware that targeted and shut down the entire banking operations and demanded ransom payments. So far, corporations, giant enterprises, NGOs and governments are all on the hit list of this virus.

  • Here are some signs of a RYUK attack:
  • Several types of messages and notifications appear informing you of your data encryption.
  • File extensions change to .RYK
  • Your desktop wallpaper may or may not change.
  • CPU utilization is 100%, despite using any applications
  • Since all files are encrypted, the system works extremely slow and sluggish.
  • The Hard Disk or SSDs of your network continue operating and draining resources.
  • Your antivirus protection doesn’t seem to be working anymore.

What should I do when my data has been encrypted by RYUK Ransomware?

It is a high-risk, virus targeting enterprises and large corporations. Due to the sophisticated nature of attacks infiltrating several layers of security, the hackers demand an enormous amount of ransom often going in millions of dollars.

For the starters, in the event of an attack, immediately turn off your network systems and disconnect all hard drives mounted with each system, including any external backup drives.

This helps in containing the spread of virus to the backup drives.

For more details please visit the Ransomware Information site.

Do not try in removing it by yourself. So far, there is no free or paid decryptor tool/antivirus software and anyone claiming its removal will be an outright lie.

BeforeCrypt can help you as a serious and highly-effective partner should you be infected by RYUK ransomware. Thanks to our experience and knowledge, we can recover 100% of your encrypted data in most cases.

Keep calm! Contact us, and we can help you!

Ransomware Recovery Ransomware Decryption


Since the victims are enterprises and large corporations, the ransom amount is much higher than other viruses.

However, these attackers have been known to demand for varying amounts based on their perceived idea of the size of the organization. The average RYUK ransom amount is somewhere between $100,000–$350,000. However, some attackers have even demanded as high as $800,000 to over $1 Million. In addition, approximately 10% of Bitcoin exchange fees will apply to the use of quick-buy methods such as PayPal or credit card.

  • RYUK Ransomware average ransom in USD $

The downtime is longer than normal attacks due to the manual process of email-based communication with the attackers, which adds a considerable delay in the response time and data recovery process.

Since this is an enterprise-level attack, the longer your systems and files are held hostage, the costlier it will be in terms of PR damage. Your goal should be to get your systems back to productive state as soon as possible. The best way to do this is to call in experts like BeforeCrypt, who have a vast knowledge of this ransomware. We can help you in getting your network back up running.

  • RYUK
  • All Ransomware

There is a high chance to get a working RYUK decryptor after paying the attackers. But there’s never a guarantee to get a working decryption key at all.

  • Paid Decryption Successful
  • Paid Decryption Failed

It is in most cases either Remote Desktop Protocol or email Phishing are the 2 leading attack vectors. Unfortunately, even enterprises fail to secure their open RDP ports.

Due to an increase in remote working, a lot of employees now work from home using remote desktop control, leaving the company’s network exposed to hackers and all sorts of cyber criminals. But it isn’t limited to Remote Desktop Protocol.

In fact, the most common methods of this ransomware distribution is email phishing.

  • Remote Desktop (RDP)
  • Phishing Emails
  • Security vulnerabilities
NameRYUK Virus / RYUK Ransomware / Cryptor 2.0 Ransomware
Danger levelVery High. Advanced Ransomware which makes system changes and encrypts files
Release dateAugust, 2018
OS affectedMicrosoft Windows
Appended file extensions.ryk
Ransom noteRyukReadMe.txt, ReadMe.txt, UNIQUE_ID_DO_NOT_REMOVE.txt or RyukReadMe.html
Contact email address[email protected] [email protected], [email protected], [email protected], [email protected]


RYUK Ransomware Note #1: HTML File

RYUK ransomnote-html

This is an average RYUK ransomware note.

RYUK Ransomware Note #2: Text file

RYUK ransomnote-txt


Your business is in serious danger.
There is a significant hole in your company’s security system. We just entered your network.

You should thank the Lord that you were hacked by serious people and not by stupid schoolboys or dangerous punks.
You can damage all your important data just for fun.

Now your files are encrypted using the strongest military algorithms RSA 4096 and AES-256.
Nobody can help you recover files without our special decoder.

Photorec, RannohDecryptor etc. repair tools are useless and can irrevocably destroy your files.

If you would like to restore your files, write an email to (Contacts are an the bottom of the leafes)
and attach 2-3 encrypted files (Each less than 5Mb, not archived and your files should not contain
valuable information (Databases, backups, large Excel data sheets, etc.).
You will receive decrypted samples and our conditions on how to get the decoder.
Don’t forget to write the framework of your company in the subject of your email.

You have to pay for decryption in bitcoins. The final price depends on how quickly you write to us.
Every day of delay will cost you an additional +0.5 BT. Nothing personal, just business

As soon as we get bitcoins, you will get back all of your decrypted data.
You will also receive instructions on how to close the vulnerability
and so you avoid such problems in the future
+ We recommend special software that makes hackers most troubled.

Danger! Once again!

Do not rename encrypted files.
Do not try to decrypt your data with third party software.

P.S. Remember, we are not cheaters.
We don’t need your files and information.
But after 2 weeks, your files and keys will be deleted automatically.
Just send a request right after the infection.
All data will be absolutely restored.
Your guarantee – decrypts samples.

Contact emails
[email protected]
[email protected]

BTC wallet:


No system is secure

Almost always, there is a * .txt or *.html file in every folder that has been encrypted. The text file usually has the name “RyukReadMe.txt” or “RyukReadMe.html” and contains all the necessary information to contact the RYUK Ransomware attackers to get your data back. It’s usually safe to open this file, just be sure the full file extension is *.txt or *.html.

RYUK Ransomware: Modified Filename Extensions


RYUK ransomware file names just show a different file extension. Unlike other ransomware variants, RYUK don’t includes an attacker email address or a unique ID in the filename.

“file name.pdf.RYK”



By loading the video, you agree to YouTube's privacy policy.
Learn more

Load video

This is an average RYUK attack. Copyright by GrujaRS / Predrag Grujić.


RYUK ransomware, notoriously known for attacking corporations and large businesses, uses military grade encryption standards of AES 256 bit and RAS 1024 bit. Without the decryption key, it is impossible to decrypt large amounts of data. To get back up online in the shortest amount of time, the only resort left with victims is to pay the ransom amount.

The method of recovering data by restoring it from backups takes as much as up to weeks which isn’t viable for many corporations due to the costly business downtime.

Depending on the variant of RYUK ransomware, it could be possible that there’s a publicly available decryption method. Please use our request form, and we can check this for free for you. You can also use free websites to check this, too.

  1. Backup, Backup, Backup! In most cases, a fresh and secure backup of data can prevent ransomware attack from succeeding. For this reason, many attackers put in a lot of effort to find and encrypt backups. The best backup will be air-gapped, meaning physically disconnected from your main network. It is also important to have a regular backup schedule with robust security procedures

  2. Install a Next-Gen Antivirus. Next generation anti-virus software combines a classic signature-based antivirus with powerful exploit protection, ransomware protection and endpoint detection and response (EDR). Mcafee, Fireeye, and Sentinel One are all examples of antivirus software with these features. 

  3. Install a Next-Gen Firewall. A Next-Gen-Firewall is also called Unified threat management (UTM) firewall. It adds a layer of security at every entry and exit point of your company data communication. It combines classic network security with intrusion detection, intrusion prevention, gateway antivirus, email filtering and many other features. 

If you can afford it, having staff or hiring a dedicated service to monitor network traffic can also help to detect unusual activity and prevent ransomware attacks. Ransomware attackers usually do a lot of surveillance on a network before attempting a hack. This “reconnaissance” phase has certain tell-tale signs. If you can catch these early, it’s possible to detect the attacker early and deny them access to the network. 

If you get hit by ransomware, a professional ransomware response service can help to identify and patch security gaps. 

Why Choose BeforeCrypt for RYUK Ransomware Recovery and Decryption Services?

  • Safe & Secure Negotiations with the hackers
  • Insurance Case Development and Documentation
  • Reporting Crime to FBI and Relevant Authorities
  • Ready availability of different cryptocurrencies for immediate disbursement on your behalf
  • FREE threat and damage assessment
  • Least possible time required to get your systems back online
Ransomware Recovery Data