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CryptoHost virus. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware
12

What is there to know about CryptoHost virus?

CryptoHost virus, also known as Ransom:MSIL/Manamecrypt.A and Ransom_CRYPTOHOST.A belongs to a very malicious branch of ransomware viruses. These viruses, including the well known programs such as Locky virus, CryptoWall or the Surprise virus enter the users’ computer unexpectedly, scan them for files and, when they find the necessary files, they lock them with a very complex algorithm. Such encryption techniques are used even in military, so the decryption of files encrypted by the ransomware virus is almost impossible. Of course, there have been cases, when the computer experts have come up with special decryptors and helped the victims to retrieve their files, but such cases are rare. In most cases, the victims simply have to face the fact that they have lost their files and remove the virus from the computer. Luckily, the CryptoHost does not actually encrypt the files but rather create a copy of the victim’s data in a password-protected RAR archive in the C:\Users\[username]\AppData\Roaming directory. The cyber security experts comfort the victims, that the password to these archives is relatively easy to discover, so it is most likely that the files are going to be retrieved as well. The password consists of RAR file name and logged in user’s username.

However, it is important to note that regardless of whether you manage to decrypt the locked documents or not, you should remove CryptoHost virus from your computer without a delay. Beware that even the most sophisticated software such as Reimage can struggle with the initial virus removal. So, you most probably will have to follow manual CryptoHost removal steps to lessen some of the program’s functionalities which should help your antivirus initiate.

An illustration of CryptoHost virus

As mentioned before, when CryptoHost infiltrates the victim’s computer, it scans it for files. The video, audio files, pictures, archives and other documents are the primary targets of this ransomware. Once the files are encrypted, the virus then adds a ransom note to the folders featuring infected files, in which the victim is demanded to pay 0.33 Bitcoins or $140 ransom to be able to retrieve them. Of course, it is not advisable to do, because as already mentioned, you can decrypt the files. Plus, would you want to support malicious program developers in this way? The best option in case you are infected is to try decrypting your data and remove CryptoHost from your computer immediately.

How can this virus infiltrate my PC?

Differently from the majority of other ransomware programs, CryptoHost does not spread through infected email attachments or exploit kits. It is said to be delivered through a new µTorrent client. This deceptive bundling strategy is also very popular among the less dangerous malware such as adware or browser hijackers. A potentially unwanted program is attached to the more popular software and stealthily installs along with it. The key to avoiding such covert installation is to use “Advanced” installation settings when installing software on your computer. These settings will allow you to monitor what additional programs are bundled with your downloaded software and help you to avoid unwanted and potentially dangerous contents from entering your computer. In case suspicious applications surface during the installation, terminate the process and delete the unreliable software bundle from your computer.

CryptoHost removal suggestions:

This ransomware also tries to prevent all sorts of apps from running. The antivirus programs are not an exception. CryptoHost may try blocking apps featuring the following strings:

anti virus, anti-virus, antivirus, avg, bitdefender, eset, mcafee, dr.web, f-secure, internet security, obfuscator, debugger, monitor, registry, system restore, kaspersky, norton, ad-aware, sophos, comodo, avira, bullguard, trend micro, eset, vipre, task manager, system configuration, registry editor, game, steam, lol, rune, facebook, instagram, youtube, vimeo, twitter, pinterest, tumblr, meetme, netflix, amazon, ebay, shop, origin

If you find your antivirus is having trouble loading, you should follow the virus removal instructions provided below. Once you follow all the indicated steps, please scan your system with a reliable antivirus tool to make sure all the virus components are successfully removed from the system. Before doing that, it is necessary to update your antivirus to its latest version.

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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 CryptoHost 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 CryptoHost virus Removal Guide:

Remove CryptoHost 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.

  • 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 CryptoHost

    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 CryptoHost removal.

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

Remove CryptoHost 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 CryptoHost. 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 CryptoHost removal is performed successfully.

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

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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  • Penelope

    BEWARE this virus is taking over hundreds of computers!!

  • Killthevirus

    Good thing they found a way to decrypt the data! Its only a question of time when they will turn to the mean ways Locky encrypts the files…