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Cryptobyte ransomware virus. How to remove? (Uninstall guide)

removal by Alice Woods - - | Type: Ransomware
12

Cryptobyte ransomware locks down your files and demands ransom

Cryptobyte virus is an updated version of BTCware ransomware[1], which is also known as CrptXXX. The virus encrypts files on victim’s computer system and drops a ransom note called #_HOW_TO_FIX.inf which includes an order to pay a ransom. During the encryption, virus adds specific file extensions[2] to original filenames. Currently, it is known that there are two versions of this virus – one of them adds .[btc.com@protonmail.ch].cryptobyte file extensions to encrypted files, and the other, which seems to be the latest one, appends .[no.xm@protonmail.ch].cryptobyte extensions to encrypted records. Previous versions of this virus used to drop READ ME.txt files, but the most recent one no longer creates it. The ransom note says that files were encrypted and the victim needs to write to a provided email address in order to find out how much money he/she needs to pay in order to buy out the files that were encrypted. According to criminals, the price depends on how fast the victim contacts them. Crooks suggest decrypting three corrupted files for free as proof that decryption software actually exists, and warns the victim not to try to restore files using any third-party tools, otherwise it may cause permanent data loss.

If this happened to you, you should put Cryptobyte removal to the top of your to-do task list. The malicious program is dangerous, and it poses a threat to the entire computer system and your privacy. The virus makes the system vulnerable to malware attacks[3], and it can even become an initiator of one – it can easily install additional malware on your computer. Therefore, we strongly recommend you to remove Cryptobyte ransomware the fastest way possible – using anti-malware software such as Reimage. Unfortunately, we must say that there are no decryption tools[4] capable of restoring encrypted files, so we hope that you have a data backup. If you don’t, you should try using one of the data recovery methods explained below.

How did I install this malicious program on my computer?

You could have installed Cryptobyte ransomware after opening a deceptive email[5], attachment, or installing a shady program suggested for you by some suspicious website. This program is just a part of malware that is available nowaday, and such dangerous software is usually distributed using techniques that are meant to trick the victim into opening malicious files without realizing how dangerous they are. In other words, we can say that ransomware distribution is usually based on Trojan Horse trick – offenders typically try to force the user to install malware without realizing it, so they hide the malware into something else and give such file a secure-looking name. However, more and more computer users are aware of spam campaigns that deliver ransomware viruses, so scammers already started using techniques such as malvertising and exploit kits. These allow them to drop malware on target’s computer without having to convince the user to download the malicious file manually.

How can I remove Cryptobyte ransomware and recover my files?

The method we recommend for Cryptobyte removal requires anti-malware software, so if you do not have one, select and download one. However, before you do that, please follow instructions given below and reboot your PC safely. The reason why you need to reboot your PC into Safe Mode with Networking is that this mode helps to remove Cryptobyte virus permanently without facing any interruptions or errors. Please do not try to eliminate the virus manually – you can lose important files instead of cleaning the system from malware.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Cryptobyte ransomware virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.

Manual Cryptobyte virus Removal Guide:

Remove Cryptobyte using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

Delete the virus once you boot the PC into the Safe Mode with Networking.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Cryptobyte

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Cryptobyte removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Cryptobyte using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Cryptobyte. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Cryptobyte removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Cryptobyte from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

Sadly, we have some bad news for you. Malware analysts weren’t successful in trying to crack this ransomware and therefore a decryption tool wasn’t discovered. At the moment, there are only such ways to restore your files:

If your files are encrypted by Cryptobyte, you can use several methods to restore them:

Data Recovery Pro

Data Recovery Pro is a professional data recovery software that can help you to find corrupted files and restore them.

ShadowExplorer tool

Usually, all viruses erase Volume Shadow Copies from the system in order to prevent the virus from restoring them. Sometimes they fail to do so, so we highly recommend you to use ShadowExplorer to check if these copies are still on your computer. If they are, you might successfully recover some of them.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Cryptobyte decryption tool is not available yet

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Cryptobyte and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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References


  • freddie

    thanks for explaining how to remove Cryptobyte virus! I imported files from a backup and installed antimalware program. Everything seems to be OK now.

  • Lunar

    I cannot believe it. No way to restore files?

  • roma

    I NEED my files. I NEED a decrypter. I am just not willing to pay some CYBERCRIMINALS! Please help…

  • AlfredMaceqe

    All files on our servers were encrypted, we had a backup. I used to think that we are wasting money by having them… I was totally wrong