Remove CryptoByte Ransomware (Recover .Cryptobyte Files)

CryptoByte is the modified CryptoByte or CrptXXX ransomware virus. Similar to its old variant, it does not allow victims to access their sensitive and valuable files, until such time they will pay the ransom.

Threat Summary

Threat: CryptoByte
Type: Ransomware
Brief Description: This ransom virus encrypts selected files on the computer and prompts user to pay for decryption key.
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CryptoByte is a computer virus which derived from BTCware ransomware or known as CrptXXX. It restricts victims from accessing their own files. CryptoByte virus encrypts images, videos, audios, and other vital data saved on infected machine. All encrypted files were renamed to .cryptobyte extension. Then it shows a warning note on your desktop window.

CryptoByte states that your files have been encrypted. If you want to restore your files, you do have to pay the ransom in Bitcoin currency. Victims were advised to contact cyber crook through email at It did not mention any specific amount, but malware author pointed out that once you immediately send an email, then expect for a lower amount of ransom.

We highly advised not to deal with CryptoByte virus authors. Please be warned that paying the ransom is not the key to bring your files back. For instance you follow their demand; you have no guarantee that they will decrypt your files. Even if it offers 3 files for free decryption; this cannot assure that they will really decrypt all your files. So after losing your crucial data donít let your money gone for nothing. To deal with this issue, all you need is to follow the guides below to recover your files.

As revealed, most ransom virus like CryptoByte is often spread as malicious email attachment. For that reason, you do have to be very cautious. Never open an email if you really donít know the source. Also, download and install files only from trusted sources, as CryptoByte virus also comes packed with free downloads. And most importantly, you have to have an effective anti-malware program that can guard your system from any attack like CryptoByte.

CryptoByte Ransomware

Procedures to Remove CryptoByte

Download FREE Removal Tool

Removal steps on this page will help you get rid of the threat effectively using tools and virus scanners. Please make sure that you will carry out the guide in exact order.

Procedure 1: Scan Computer in Safe Mode Using Installed Anti-virus Program

1. First, we will try to remove Remove CryptoByte Ransomware (Recover .Cryptobyte Files) by running a virus scan under Safe Mode with Networking. To perform this task, please complete these procedures.

Start in Safe Mode with Networking (Windows XP/Vista/7 Instruction)

- Please restart the computer and just before Windows start, press F8 on your keyboard repeatedly. You will be presented with Advanced Options Menu.
- From the selections, choose Safe Mode with Networking. Please use keyboard's arrow up/down to navigate between selections and press Enter to proceed.


Start Windows 8 in Safe Mode with Networking

- Please restart the computer and as soon as it begins to start, please press Shift+F8 keys.
- Instead of seeing Advance Boot Options, Windows 8 will display Recovery Mode. Continue with the given steps until you reach Safe Mode function.
- Click on 'See advanced repair options'.


- Then, click on Troubleshoot.
- Next, please select Advanced options.
- On the next window, please choose Windows Startup Settings.
- Lastly, click on Restart button. Windows 8 will now restart and boot into Advanced Boot Option wherein you can run the system in Safe Mode with Networking.


2. Open your installed anti-virus programs and update it to the most recent version by automatically downloading necessary updates.

3. Thoroughly scan the computer and remove all identified threats. Do not restart or turn off the computer after the scan process. You still need to run another scan. Please follow the next procedure.

Procedure 2: Scan and remove CryptoByte files with MalwareBytes Anti-Malware

To remove CryptoByte, download Malwarebytes Anti-Malware. This tool is effective in getting rid of Trojans, viruses and malware.

Download Removal Tool

1. After downloading, please install the program using the default settings.

2. At the end of the installation, please make sure that it will download necessary updates.

3. Once update has completed, MBAM will launch.

MBAM Scanner

4. Select SCAN from the top menu. Then, click on Threat Scan (Recommended) section.

5. Click on Start Scan to thoroughly scan the computer. Remove all threats detected by this anti-malware program after the process.

Procedure 3: Run Microsoft Safety Scanner to remove CryptoByte components.

MS Safety Scanner is a free security tool that offers on-demand virus scanning and helps remove threats from the infected computer. It is a stand-alone program that works even with existing antivirus program.

Important: Each download of Microsoft Safety Scanner expires 10 days after the acquisition date. If this period lapses, you need to download the same program from the same location again. New download contains newer virus definition and database to detect and clean most recent viruses.

To use this tool in removing CryptoByte, please follow this procedure.

1. Download Microsoft Safety Scanner from official web site. Click on the button below.

Download Safety Scanner

2. Save the file to a convenient location such as Desktop.

3. Once the download completes, browse the folder and double-click on the file msert.exe. Icon for this file looks like this.

MS Safety Scanner Icon

4. If Windows prompts for a security warning and ask if you want to run the file, click on Run. For Windows Vista/7 users, you may right-click on the file and select Run as administrator from the selection.

Run as administrator

5. On initial run, the tool will display End User License Agreement, please accept the terms and click Next. Continue on the process until you reach the Scan Type window.

6. Select on Full scan to entire the system and detect any presence of CryptoByte. Then, click Next button to begin the scan process. Scanning may take a while, please be patient.

Full Scan

7. Once Microsoft Safety Scanner finished on scanning the computer, it will display the result. If it finds presence of CryptoByte and other malware, the tool removes them automatically.

8. Click on Finish button to close the tool.

Recover CryptoByte Encrypted Files

CryptoByte Decryption Tool

1. Download BTCWareDecrypter by Michael Gillespie. Save the file on your hard drive.

2. Unzip the file and run the tool.

3. Go to top menu, click on Settings. Then Find Key (BruteForcer).

4. Select Use Encrypted/Original File Pair and browse for one .cryptobyte encrypted file. Then, select and load the original or clean version of the same file.

Encrypted File - myfile.doc.[].cryptobyte
Original File -

5. The tool will find the private key and use it for file recovery.

6. Next, click on Select Directory to browse and decrypt other .cryptobyte files.

Use ShadowExplorer to Recover Files

Recovering CryptoByte encrypted files using this tool may only be possible if the virus did not erased the Shadow Copies of files on your computer. Volume Shadow Service is a Windows feature and is a component of Windows Backup and System Restore. Backup data are kept automatically in the system after enabling System Restore. Therefore, you may never use this feature when System Restore not active on the computer.

1. Download the most recent version of ShadowExplorer from their official website. Click the button below.

Download ShadowExplorer

2. Install this program on your computer. It should initialize after the installation process. You may also double-click the created icon to run ShadowExplorer.

Click Icon

3. On main interface, click on the Drive Path at upper left corner to list all Volume Shadow Copies kept on your computer.

Select Drive

4. Select preferred time and date you wish to restore. It is suggested to select the most recent copy before the CryptoByte infection.

5. Right-click on the folder you wish to restore. Then, click on Export.

Export Files

6. ShadowExplorer will prompt for the new location of files to recover. Please specify the path where you want to save copies of your files.

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