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About ransomware

CU ransomware is a serious malware infection, categorized as ransomware, which may do severe harm to your device. While ransomware has been a widely reported on topic, you might have missed it, thus you may not be aware of what infection could mean to your computer. When files are encrypted using a powerful encryption algorithm, they will be locked, which means you won’t be able to open them. The reason this malware is categorized as high-level is because ransomware encrypted files are not always possible to decrypt. You do have the option of paying the ransom but many malware researchers do not suggest that. First of all, paying won’t ensure that files are restored. Think about what is there to prevent criminals from just taking your money. Also consider that the money will be used for future malicious software projects. Would you really want to support an industry that already does billions of dollars worth of damage to businesses. And the more people give them money, the more of a profitable business ransomware becomes, and that attracts many people to the industry. Buying backup with the requested money would be a much wiser choice because if you ever run into this type of situation again, you would not need to worry about file loss since they would be recoverable from backup. You could then proceed to data recovery after you erase CU ransomware virus or similar threats. You may find information on how to shield your device from this threat in the below paragraph, in case you are unsure about how the ransomware managed to infect your computer.
Download Removal Toolto remove CU ransomware

How is ransomware distributed

You could generally see ransomware attached to emails or on dubious download site. There’s usually no need to come up with more elaborate methods because a lot of users are pretty negligent when they use emails and download files. More elaborate ways might be used as well, although not as frequently. All criminals need to do is add a malicious file to an email, write some type of text, and pretend to be from a real company/organization. Those emails commonly discuss money because due to the sensitivity of the topic, users are more inclined to open them. Pretty frequently you’ll see big names like Amazon used, for example, if Amazon emailed someone a receipt for a purchase that the person doesn’t remember making, he/she would not wait to open the attached file. When you’re dealing with emails, there are certain signs to look out for if you wish to secure your system. What is essential is to investigate whether you’re familiar with the sender before opening the file attached. If you’re familiar with them, make sure it is genuinely them by carefully checking the email address. Those malicious emails also often contain grammar mistakes, which can be rather easy to notice. The greeting used might also be a hint, as real companies whose email is important enough to open would include your name, instead of universal greetings like Dear Customer/Member. Vulnerabilities on your device Vulnerable software might also be used as a pathway to you system. All programs have vulnerabilities but when they’re identified, they’re frequently fixed by software makes so that malware cannot use it to get into a computer. Unfortunately, as as could be seen by the widespread of WannaCry ransomware, not everyone installs those patches, for one reason or another. It is encourage that you install a patch whenever it is made available. Updates can install automatically, if you find those notifications bothersome.

What does it do

Ransomware only targets specif files, and when they’re found, they are locked almost immediately. Even if what happened wasn’t clear from the beginning, you will certainly know something is not right when files don’t open as normal. You will also see a strange extension attached to all files, which can help identify the correct data encoding malware. Strong encryption algorithms might have been used to encrypt your data, which may mean that you cannot decrypt them. A ransom notification will be put on your desktop or in folders which include locked files, which will notify you about file encryption and how you should proceed. A decryptor will be offered to you, for a price obviously, and crooks will alert to not use other methods because it might damage them. If the price for a decryption software is not displayed properly, you would have to contact the criminals via email. Obviously, we do not think paying is a wise idea, for the reasons already mentioned. Try out every other likely option, before even thinking about buying what they offer. Try to remember whether you’ve recently uploaded your files somewhere but forgotten. Or maybe a free decryptor has been published. If the file encrypting malicious program is crackable, a malware researcher might be able to release a decryption tool for free. Before you decide to pay, consider that option. If you use some of that sum to buy backup, you would not face possible file loss again since your data would be saved somewhere secure. And if backup is available, you can recover data from there after you erase CU ransomware virus, if it still remains on your computer. If you want to avoid ransomware in the future, become aware of how it might get into your device. Ensure you install up update whenever an update is available, you do not open random email attachments, and you only trust safe sources with your downloads.

How to remove CU ransomware virus

Use an anti-malware utility to get the ransomware off your system if it still remains. It may be tricky to manually fix CU ransomware virus because a mistake could lead to further damage. Using an anti-malware software would be much less troublesome. These kinds of programs exist for the purpose of removing these kinds of infections, depending on the program, even preventing them from entering in the first place. Once the anti-malware program of your choice has been installed, simply scan your device and authorize it to get rid of the infection. The utility won’t help decrypt your data, however. If you’re certain your computer is clean, go unlock CU ransomware files from backup.
Download Removal Toolto remove CU ransomware

Learn how to remove CU ransomware from your computer

Step 1. Remove CU ransomware using Safe Mode with Networking.

a) Step 1. Access Safe Mode with Networking.

For Windows 7/Vista/XP
  1. Start → Shutdown → Restart → OK. win-xp-restart Remove CU ransomware
  2. Press and keep pressing F8 until Advanced Boot Options appears.
  3. Choose Safe Mode with Networking win-xp-safe-mode Remove CU ransomware
For Windows 8/10 users
  1. Press the power button that appears at the Windows login screen. Press and hold Shift. Click Restart. win-10-restart Remove CU ransomware
  2. Troubleshoot → Advanced options → Startup Settings → Restart. win-10-options Remove CU ransomware
  3. Choose Enable Safe Mode with Networking. win-10-boot-menu Remove CU ransomware

b) Step 2. Remove CU ransomware.

You will now need to open your browser and download some kind of anti-malware software. Choose a trustworthy one, install it and have it scan your computer for malicious threats. When the ransomware is found, remove it. If, for some reason, you can't access Safe Mode with Networking, go with another option.

Step 2. Remove CU ransomware using System Restore

a) Step 1. Access Safe Mode with Command Prompt.

For Windows 7/Vista/XP
  1. Start → Shutdown → Restart → OK. win-xp-restart Remove CU ransomware
  2. Press and keep pressing F8 until Advanced Boot Options appears.
  3. Select Safe Mode with Command Prompt. win-xp-safe-mode Remove CU ransomware
For Windows 8/10 users
  1. Press the power button that appears at the Windows login screen. Press and hold Shift. Click Restart. win-10-restart Remove CU ransomware
  2. Troubleshoot → Advanced options → Startup Settings → Restart. win-10-options Remove CU ransomware
  3. Choose Enable Safe Mode with Command Prompt. win-10-boot-menu Remove CU ransomware

b) Step 2. Restore files and settings.

  1. You will need to type in cd restore in the window that appears. Press Enter.
  2. Type in rstrui.exe and again, press Enter. command-promt-restore Remove CU ransomware
  3. A window will pop-up and you should press Next. Choose a restore point and press Next again. windows-restore-point Remove CU ransomware
  4. Press Yes.
While this should have taken care of the ransomware, you might want to download anti-malware just to be sure no other threats are lurking.  

Step 3. Recover your data

While backup is essential, there is still quite a few users who do not have it. If you are one of them, you can try the below provided methods and you just might be able to recover files.

a) Using Data Recovery Pro to recover encrypted files.

  1. Download Data Recovery Pro, preferably from a trustworthy website.
  2. Scan your device for recoverable files. data-recovery-pro Remove CU ransomware
  3. Recover them.

b) Restore files through Windows Previous Versions

If you had System Restore enabled, you can recover files through Windows Previous Versions.
  1. Find a file you want to recover.
  2. Right-click on it.
  3. Select Properties and then Previous versions. windows-previous-version Remove CU ransomware
  4. Pick the version of the file you want to recover and press Restore.

c) Using Shadow Explorer to recover files

If you are lucky, the ransomware did not delete your shadow copies. They are made by your system automatically for when system crashes.
  1. Go to the official website ( and acquire the Shadow Explorer application.
  2. Set up and open it.
  3. Press on the drop down menu and pick the disk you want. shadow-explorer Remove CU ransomware
  4. If folders are recoverable, they will appear there. Press on the folder and then Export.

* SpyHunter scanner, published on this site, is intended to be used only as a detection tool. More info on SpyHunter. To use the removal functionality, you will need to purchase the full version of SpyHunter. If you wish to uninstall SpyHunter, click here.

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