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

removal by Julie Splinters - - | Type: Ransomware
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The main features of the CryptoTrooper virus

Linux OS users have definitely not been waiting for an infection such as CryptoTrooper virus to show up in the cyber infection arena. This virus is said to be one of the first fully Linux-adapted ransomware variant to be created. The program started as an educational project, sadly, as the experience of Hidden Tear and EDA2 has though us, it is not long before such programs get noticed by hackers. And CryptoTrooper ransomware is everything an evil programmer can dream of: the program is based on the white-box subsystem which allows the user to see the source code and algorithms employed by the program. Due to the open-source functionality, it is much easier to grasp the true modus operandi of the tool. In relation to this, the security specialists released this crypto-ransomware for educating the security personnel and help them confront the recent ransomware rampaging on the Internet. It is only a matter of time until the hackers take advantage of such educational measures and make it much more difficult to remove CryptoTrooper than it is right now. In case, the modified version of this virus infects Windows systems, users are advised to run Reimage.

The virus receives attention for its white-box basis. In simplified terms, white-box is a subsystem which allows the programmer to analyze the inner structures of the software, its internal statements as well as path coverage. This form of testing is opposed to black-box testing, which mainly relies on software functions. Crypto Trooper developers propose 4 stages of its operation: infection, an encoding process, white-box stage, and decryption. This virus is created to exploit system vulnerabilities or configuration flaws to get into the computer. Once it infiltrates the device, CryptoTrooper malware generates a unique one-way asymmetric code to encodes the data. Later on, the key which is encrypted by a one-way white-box cipher.

CryptoTropper virus on Linux OS

After the infection, the corrupted computer automatically sends the variant of the key and its initialization vector. Consequently, the latter key might be decoded by hackers. In contrast to AES encryption method, which is mainly used for the ransomware threats infecting Windows OS, white-box version reveals less confidential information about the structure of the ransomware. In contrast, e.g. AES-128 bit key uses 10 cycles of repetitive cycles. By employing the plaintext (input) and cybertext (output), it encrypts the targeted data. Therefore, white-box does not need to use the repetitions to finish the encryption process.

The developers of CryptoTrooper ransomware are convinced that this educational virus will provide significant insights for security experts. Such knowledge might be highly valuable taking into account the recent activity of data-encrypting viruses. However, such publication may be soon exploited for the hackers’ ambitions. In case, your operating system is Linux and you suspect that this virus infected your device, then proceed to CryptoTrooper removal.

How does this ransomware find its way to Linux system?

Unlike Windows-based ransomware threats which usually operate via binaries in the form of .exe files, CryptoTrooper might be less menacing as it needs to locate system vulnerabilities and configuration issues in order to seize the device completely. Debian-based 64-bit Gnu/Linux distribution with root access is one of the favorable conditions for CryptoTrooper hijack to occur. Thus, it is likely that the ransomware might also use a botnet for the distribution purposes. In order to lower the risk of an infection, users should increase their cyber security by installing reliable security tools.

CryptoTrooper removal and data recovery suggestions

When it comes to CryptoTrooper removal or any other ransomware elimination in general, you should always employ an anti-spyware application, for example, Sophos Antivirus, or Comodo Free Antivirus malware removal app. They provide real-time protection against the cyber infections, including trojans, ransomware, and other serious viruses. What is more, they remove CryptoTrooper virus and all its components quickly. In addition, we recommend additional tools for decrypting the data.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove CryptoTrooper ransomware virus you agree to our privacy policy and agreement of use.
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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 CryptoTrooper 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 CryptoTrooper virus Removal Guide:

Remove CryptoTrooper 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 CryptoTrooper

    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 CryptoTrooper removal.

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

Remove CryptoTrooper 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 CryptoTrooper. 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 CryptoTrooper removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove CryptoTrooper 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 CryptoTrooper, you can use several methods to restore them:

How useful is Data Recovery Pro?

This software might help to recover at least the biggest amount of encoded files. It is especially handy when finding lost or damaged files.

Windows Previous Versions feature. How to use it for the data recovery?

In order to be able to use Windows Previous Versions feature properly, you first have to make sure that the System Restore feature was enabled before the virus infiltration. Otherwise, this method will simply not work. If you have everything settles as required, check out the instructions below and get started.

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

The modus operandi of ShadowExplorer

This tool restores the files employing the patterns of volume shadow copies. If the ransomware does not delete them beforehand, you have an alternative to recover the locked data.

  • 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.

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

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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  • melonydor2n

    I wonder if there are ransomware schools already…

  • ChrisWe

    I agree, that it is essential understanding how such viruses work in order to seize them on time.

  • jimmy45wq4Sean

    Everyones is so obsessed with these vuruses.

  • diana3W

    Still, the justice will prevail.