Remove CryptoHost Ransomware (Virus Removal)

CryptoHost Ransomware is a virus that locks computer to suspend PC users from accessing their files such as photos, videos, and other valuable data stored on affected computer. Cyber criminals used to demand a payment in exchange for letting those files free from being held.

Threat Summary

Brief Description:This ransom virus encrypts selected files on the computer and prompt user to pay for decryption key.


CryptoHost is a highly risky ransom virus that holds files in a password-protected archive named .rar. This is very much alike to other threats which used file encryption scheme. In order to extort money from its victims, it encrypts files and demand for ransom in exchange for private key. This time, CryptoHost virus just moved your files. Then it demands for ransom in exchange for the password to access those files in .rar archived.

Ransom message states that the only key to retrieve your files is by means of password that victims may only get to CryptoHost’s author. You have to pay first for about $150. This is equal to .35 Bitcoins for the time being. CryptoHost ransom note adds that once you failed to pay this amount on time frame given, your files will be permanently locked.

Fortunately, computer security experts discovered the password to .RAR archive. The password that has been kept by crooks in order to extort money from its victims. This means that all files moved by CryptoHost virus can now retrieve and bring back to its original location for free. It revealed that to access your files again from protected password .rar, all you need is to enter the archive’s name and the user’s name.

Meanwhile, to protect your computer from further attack, then you must remove CryptoHost virus. Kindly follow the steps below as instructed.


Procedures to Remove CryptoHost

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 CryptoHost Ransomware (Virus Removal) 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 CryptoHost files with MalwareBytes Anti-Malware

To remove CryptoHost, 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 CryptoHost 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 CryptoHost, 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 CryptoHost. 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 CryptoHost and other malware, the tool removes them automatically.

8. Click on Finish button to close the tool.

Recover CryptoHost Encrypted Files

Use ShadowExplorer to Recover Files

Recovering CryptoHost 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 CryptoHost 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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