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Remove cuteRansomware (YuAlock)

D_E_C_R_Y_P_T.txt ransom note file of cuteRansomware YuAlock sensorstechforum

This article explains the issues that occur in case of infection with cuteRansomware also known as YuAlock. Below you will also find a complete guide on how to remove all malicious files from the infected system and how to potentially recover files encrypted by this ransomware.

The cuteRansomware that is also called YuAlock is a crypto virus that invades computer systems. An infection with this ransomware leads to the corruption files that store valuable data. In order that the threat could reach data encryption stage, it performs different malicious commands that cause heavy system modifications. At the end of the attack cuteRansomware displays a ransom message that attempts to trick you into contacting hackers.

Threat Summary

Name CuteRansomware (YuAlock)
Type Ransomware, Cryptovirus
Short Description Ransomware that utilizes strong cihper algorithm to modify the code of target files and make them unusable. Then it demands a ransom for their decryption.
Symptoms Important files could not be opened. Their names display an uncommon extension at the end. A ransom message claims tha you could restore files only if you contact hackers.
Distribution Method Spam Emails, Email Attachments, Corrupted Web Pages
Detection Tool See If Your System Has Been Affected by malware


Malware Removal Tool

User Experience Join Our Forum to Discuss CuteRansomware (YuAlock).
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

cuteRansomware (YuAlock) – Distribution

At this point, there is no primary distribution method known to be used for the spread of cuteRansomware. So the guesses are that this ransomware also dubbed YuAlock could be distributed via common techniques such as malvertising, malspam, and freeware installers.

Malspam (spam email campaigns that deliver malware) is likely to be the main distribution vector utilized for the delivery of cuteRansomware’s payload. Most of these emails contain file attachments that according to their text messages need to be opened as soon as possible due to the importance of their data.

However, these files contain embedded malicious code that triggers the ransomware payload when you open them on your device. Another infection element that may appear in malspam emails is a clickable URL address. It may take the form of a button, in-text link, image, coupon voucher, etc. Such a link could be set to land on a corrupted web page that is configured to activate malicious scripts. The purpose of these scripts is to run the infection code on your system without your knowledge. That’s why it is of paramount importance to have a reliable anti-malware tool running on your system. Once activated such a tool is ready to detect all intrusive malware that attempts to infect the system. This could save you a lot of troubles, couldn’t it?

cuteRansomware (YuAlock) – Overview

When first started on the device cuteRansomware ties to access specific system directories in order to hijack legitimate processes and manipulate their functionalities. On one hand, this enables it to evade detection and fulfill the attack. On the other hand, manipulation of system resources could provide for the persistent presence of malicious files on the device.

As a result of malicious modifications applied under specific registry keys, this ransomware could become able to execute its infection files on each system start. This issue indicates that the registry sub-keys Run and RunOnce contain malicious values associated with ransomware files.

Once cuteRansomware/YuAlock completes all needed system changes it continues with data encryption stage (find more about it in the next paragraph). Soon after the virus is ready with the corruption of target files it drops the file D_E_C_R_Y_P_T.txt. As reported by security researchers this file contains a ransom message by hackers. All it reads is:

Your computer file has been encrypted with YuAlock.The other Ransomware requires a bit coin, but the Ransomware only needs to send a mail to recover the file …He’s not looking at the monitor seriously. Please smile a little Ha ha ha!

D_E_C_R_Y_P_T.txt ransom note file of cuteRansomware YuAlock sensorstechforum

In addition, as reported by EnigmaSoft, the cuteRansomware could also load the following window on your infected PC:

ransom image displayed by cuteransomware yualock virus

The message on it reveals that hackers expect you to pay 0.05 BTC within a specified period of time if you want them to send you the decrypter. It’s interesting to be mentioned that another devastating threat called [wplinkpreview url=”https://sensorstechforum.com/bad-rabbit-ransomware-remove-recover-files-drive/”]Bad Rabbit was detected to use the same window to scare its victims. However, there is no evidence of the same authors to be behind YuAlock ransomware attacks.

Another noticed coincidence is that back in July 2016 our team reported one more ransomware called [wplinkpreview url=”https://sensorstechforum.com/remove-cuteransomware-virus-restore-encrypted-%E5%8A%A0%E5%AF%86files/”]CuteRansomware. But since its samples indicate that it has completely different behavior, we believe that this new cuteRansomware/YuAlock belongs to another threat family.

cuteRansomware (YuAlock) – Encryption Process

When cuteRansomware is ready with all initial system modifications it activates its built-in encryption module to locate target files and encode them. At this point, there is no information about the exact cipher algorithm used by this crypto virus. However, once it changes the original code of target files they become inaccessible for an unspecified period of time.

One way for decrypting files is by paying hackers the demanded ransom. Our advice is to avoid doing this as you have no guarantee that their decryptor is working one. Only a single bug in their ransomware code could result in the generation of a completely inefficient decryption key.

Another way to restore encrypted files is with the help of alternative data recovery solutions such as Shadow Copy technology that is part of your Windows OS or specialized tools names of which are listed in step “Restore Files” form the guide below.

Eventually, when security experts conduct further analysis of the samples of this ransomware they may find out how to crack its code and release free decryption tool to help all infected users. We will update this article the moment this happens.

As of the types of data corrupted by YuAlock ransomware they may be all your:

  • Archives
  • Backups
  • Images
  • Videos
  • Music
  • Documents

Following encryption, they will appear as broken files with specific extension appended to its names.

Remove cuteRansomware/YuAlock and Restore Encrypted Files

The so-called cuteRansomware/YuAlock is a threat with highly complex code that plagues not only your files but your whole system. So infected system should be cleaned and secured properly before you could use it regularly again. Below you could find a step-by-step removal guide that may be helpful in attempting to remove cuteRansomware/YuAlock. Choose the manual removal approach if you have previous experience with malware files. If you don’t feel comfortable with the manual steps select the automatic section from the guide. Steps there enable you to check the infected system for ransomware files and remove them with a few mouse clicks.

In order to keep your system safe from ransomware and other types of malware in future, you should install and maintain a reliable anti-malware program. Additional security layer that could prevent the occurrence of ransomware attacks is [wplinkpreview url=”https://sensorstechforum.com/the-most-popular-free-anti-ransomware-tools/”]anti-ransomware tool.

Make sure to read carefully all the details mentioned in the step “Restore files” if you want to understand how to fix encrypted files without paying the ransom. Beware that before data recovery process you should back up all encrypted files to an external drive as this will prevent their irreversible loss.

Gergana Ivanova

Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy

About the CuteRansomware (YuAlock) Research

The content we publish on SensorsTechForum.com, this CuteRansomware (YuAlock) how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.

How did we conduct the research on this ransomware?

Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.

Furthermore, the research behind the CuteRansomware (YuAlock) ransomware threat is backed with VirusTotal and the NoMoreRansom project.

To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.


1. How to Recognize Spam Emails with Ransomware
2. How Does Ransomware Encryption Work?
3. How to Decrypt Ransomware Files
4. Ransomware Getting Greedier and Bigger, Attacks Increase by 40%
5. 1 in 5 Americans Victim of Ransomware

Windows Mac OS X

How to Remove CuteRansomware (YuAlock) from Windows.

Step 1: Boot Your PC In Safe Mode to isolate and remove CuteRansomware (YuAlock)


Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows Key + R.

2. The "Run" Window will appear. In it, type "msconfig" and click OK.

3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".

Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.

4. When prompted, click on "Restart" to go into Safe Mode.

5. You can recognise Safe Mode by the words written on the corners of your screen.

Step 2: Uninstall CuteRansomware (YuAlock) and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:

1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.

2. In the field type in "appwiz.cpl" and press ENTER.

3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"

Follow the instructions above and you will successfully uninstall most programs.

Step 3: Clean any registries, created by CuteRansomware (YuAlock) on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by CuteRansomware (YuAlock) there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.

2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

3. You can remove the value of the virus by right-clicking on it and removing it.

Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for CuteRansomware (YuAlock) with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

2. After you have installed SpyHunter, wait for it to update automatically.


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.


If any threats have been removed, it is highly recommended to restart your PC.

Video Guide for Automatic and Fast Removal

Step 5 (Optional): Try to Restore Files Encrypted by CuteRansomware (YuAlock).

Ransomware infections and CuteRansomware (YuAlock) aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

Step 6: How to Restore Files Encrypted by Ransomware (Video Guide)

Windows Mac OS X

Get rid of CuteRansomware (YuAlock) from Mac OS X.

Step 1: Uninstall CuteRansomware (YuAlock) and remove related files and objects

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy

1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:

2. Find Activity Monitor and double-click it:

3. In the Activity Monitor look for any suspicious processes, belonging or related to CuteRansomware (YuAlock):

Tip: To quit a process completely, choose the “Force Quit” option.

4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.

5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to CuteRansomware (YuAlock). If you find it, right-click on the app and select “Move to Trash


6. Select Accounts, after which click on the Login Items preference.

Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to CuteRansomware (YuAlock). Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.

7. Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove CuteRansomware (YuAlock) via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as CuteRansomware (YuAlock). If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents

Tip: ~ is there on purpose, because it leads to more LaunchAgents.

Click the button below below to download SpyHunter for Mac and scan for CuteRansomware (YuAlock):


SpyHunter for Mac

Step 3 (Optional): Try to Restore Files Encrypted by CuteRansomware (YuAlock).

Ransomware infections and CuteRansomware (YuAlock) aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

CuteRansomware (YuAlock) FAQ

What is CuteRansomware (YuAlock) ransomware and how does it work?

CuteRansomware (YuAlock) is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does CuteRansomware (YuAlock) ransomware infect my computer?

Via several ways.CuteRansomware (YuAlock) Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of CuteRansomware (YuAlock) is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .CuteRansomware (YuAlock) files?

You can't. At this point the .CuteRansomware (YuAlock) files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .CuteRansomware (YuAlock) files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by CuteRansomware (YuAlock) ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".CuteRansomware (YuAlock)" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .CuteRansomware (YuAlock) files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of CuteRansomware (YuAlock) ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate CuteRansomware (YuAlock) ransomware and then remove it without causing any additional harm to your important .CuteRansomware (YuAlock) files.

Also, keep in mind that viruses like CuteRansomware (YuAlock) ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

How to Report Ransomware to Authorities?

In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer. Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:

Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:

Reports may be responded to in different timeframes, depending on your local authorities.

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