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

removal by Jake Doevan - -   Also known as CryptoShield 1.0 | Type: Ransomware
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CryptoShield becomes the new CryptoMix

CryptoShield ransomware is a product of the same developers as CryptoMix. Besides the altered name, the cyber infection possesses some significant updates. Previously, the threat exploited RSA-2048 algorithm to encode files and attached .lesli file extension to the corrupted data. Now, the newer version has changed its hijack tactics and other technical specifications. CryptoShield virus spreads with the assistance of Rig Exploit Kit which has also been used to infect systems with Cerber. To prevent these viruses, you must to review your security software and arm up only with the reputable one. One of the solutions to prevent these ransomware viruses is to install Reimage. It is also practical in CryptoShield removal process.

Recently detected by ProofPoint security researcher Kafeine, the malware seems to impersonate well-known file-encrypting threats. The previous version preferred the outlook of CryptoWall[1], the current version sympathizes with the creators of Locky[2] as the ransom message is identical to the one employed by the menacing threat. No matter that CryptoShield seems to work in a similar manner, the threat uses two types of encryption techniques. As common for these types of threats, the ransomware encodes personal files with the AES-256 algorithm. However, it also uses ROT-13[3] encryptor which is based on a simple coding pattern. The latter does not cause any problems of deciphering. Naturally, the virus leaves its mark in the system – all of the data contains .cryptoshield file extension. 

Despite the feature to use a plain coding technique, ROT-13, it might be futile to underestimate CryptoShield 1.0 malware. The previous version is capable of encoding more than 800 files within a short period of time. The current version aims to encrypt more than 50 file format types. CryptoShield ransomware presents the demands in # RESTORING FILES #.HTML and # RESTORING FILES #.TXT. In the ransom note, three email addresses are provided: restoring_sup@india.com, restoring_sup@computer4u.com, and restoring_reserve@india.com. It might be the case that the same gang of cyber villains which tend to use @india.com themed email domains, might be behind CryptoShield as well.

Some features of this cyber menace spark an interest. The threat disguises under explorer.exe file and initiates a fake error notification about the possibly crashed explorer. This counterfeited message with obvious typing and spelling tries to persuade to enable the following UAC (User Account Control) command. Though canceling the latter notification will hardly cease the execution of the ransomware, you should still opt for the termination. Additionally, you might try ending any suspicious task in the Task Manager. Unfortunately, the crooks also programmed the virus to access shadow volume copies and delete them. Despite these destructive specifications, it is futile to give in to the despair. Remove CryptoShield with the assistance of Reimage or Malwarebytes Anti Malware.

Distribution methods used by this ransomware

The new version of CryptMix fishes for new users in corrupted websites[4]. The latest one that has been found to spread this virus is called cedar(dot)igrooveweb(dot)com, so make sure you don’t visit it. Specifically, it operates via EITest element. It performs an intermediary role as it produces several attack chains on the vic because it victims which visited an infected web page. Later on, after locating crucial vulnerabilities, it serves RIG exploit kit to the operation system. Then it becomes only a matter of time when this malevolent tool downloads all components of the malware to complete CryptoShield hijack. If you are a website administrator or an ordinary user, update and ensure better protection of your monitored domain and the device.

What do I need to remove CryptoShield?

Firstly, it is necessary to employ to fully complete CryptoShield 1.0 removal even to consider data recovery to be effective. If your anti-virus application failed to block the threat, the anti-malware application might be a solution. Install it and update so that it could detect the infection. After the elimination, proceed to the data recovery steps. Since the virus deletes shadow volume copies from, some programs which operate based on these patterns might not work. As a result, you would need to opt for other alternatives. In case you encounter some problems which bother you to remove CryptoShield 1.0 virus fully, use the following guide. In addition, if you backed up your system before, you might succeed in retrieving the files[5].

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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 CryptoShield 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 CryptoShield virus Removal Guide:

Remove CryptoShield 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.

If the virus paralyzed your computer, use the following guidelines to recover the control of the device.

  • 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 CryptoShield

    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 CryptoShield removal.

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

Remove CryptoShield using System Restore

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

System Recovery might help you remove the threat and recover the files.

  • 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 CryptoShield. 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 CryptoShield removal is performed successfully.

Bonus: Recover your data

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

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

Data Recovery Pro method to recover files encrypted by CryptoShield

If CryptoShield ransomware infected your computer and encrypted your files, you should give this app a try. Your important files can be restored in several minutes.

Use ShadowExplorer to recover files encrypted by CryptoShield 1.0

If you are lucky enough to find out that your ransomware failed to remove Shadow Volume Copies of your files, you need to try ShadowExplorer to recover them. For that follow these steps:

  • 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.

CryptoMix/CryptoShield decrypter is not available yet.

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

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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References


  • CCSorcerer45

    Now is the time to declare war for hackers.

  • CelineRob77

    Nice move. Disguising under the new image. They are the same hackers.

  • Laura.Donavan

    That EITest thing is worth interest.

  • 4DEReality

    What is ROT-13 doing here? If files are encrypted with AES-256, there is no way you would recover them with this decrypter.