Severity scale:  
  (96/100)

Retis ransomware. How to remove? (Uninstall guide)

removal by Gabriel E. Hall - - | Type: Ransomware

Retis ransomware gives 24 hours to pay the ransom

Retis ransomware image

Retis virus belongs to the ransomware family since it is designed to encode data on the victimized computer. Following the encryption, it appends .crypted extension at the end of the filename and changes the wallpaper to the ransom note named RANSOM.png. While this crypto-malware initially targets French people, experts note that it might be soon updated to spread worldwide. 

The authors of this file-encrypting virus identify themselves as Hack Lab by RETIS on the ransom note. It is believed that they employ sophisticated AES algorithms to encode information and profit from inexperienced computer users[1]. However, it is currently unknown how much money they demand to pay for Retis decryptor, and there are no contact emails indicated.

This suggests the ransomware might be still under development and you have a chance to recover your files easily if you perform Retis removal as soon as possible. Note that hackers aim to extort as many people as possible. Likewise, there is a strong possibility that they will update it soon to make even more damage.

The translation of Retis ransom note:

Your office, photos, data and other essential files were encrypted with a robust algorithm,
and a unique key is generated for this computer. 
The secret key for decrypting your data is stored on the Internet server,
and no one can decode your files until you pay to receive it. 
You have 24 hours to send us the ransom.

WHEN THE TIME ENDS YOUR KEY WILL BE DELETED FROM OUR SERVERS,
AND YOU MAY NOT REACH YOUR DATA.

People are urged to pay the ransom in 24 hours, or their decryption key will be deleted from the servers. As a result, victims are claimed to be unable to recover files and access their data. However, we still suggest you remove Retis since our team has prepared several effective methods how you can alternatively retrieve your data without paying the ransom.

Use Reimage to get rid of Retis ransomware right when it infects your system. You can use the guide below which will briefly explain you what to do step-by-step and suggest alternative recovery techniques to regain access to your files and valuable information.

Ransomware distribution: spam emails, P2P networks, malware-laden ads

The most widely used way to distribute file-encrypting viruses is to send emails containing malicious attachments to the potential victims[2]. Usually, the letter looks genuine and supposedly holds “very important” information. Likewise, people are encouraged to click on the attachment/link to receive the invoice or another document. If they do so, the ransomware infiltrates on the system.

Moreover, criminals tend to put obfuscate executables of the malware on peer-to-peer networks where people share files. To trick their targets into downloading them, they imitate popular software or their updates, such as Adobe Flash Player. Even though the file looks like a legitimate program, it is merely a deceptive appearance hiding the ransomware inside.

Also, since it is now almost impossible to avoid ads, it becomes harder to determine their origins. Therefore, hackers try to benefit from the advertising by placing malware-laden ads which either lead to their managed pages or automatically start ransomware installation. Thus, stay away from advertisements all the time.

Retis virus elimination: get rid of the ransomware with the antivirus tool

NoVirus.uk[3] team says that ransomware-type infections are highly dangerous — they can not only harm your system but also imitate regular computer processes to hinder the elimination procedure. Likewise, you should ensure Retis removal to the robust security software which will automatically detect and terminate the malicious program.

Download Reimage, Reimage, or Malwarebytes Anti Malware and let it scan your computer files thoroughly. It will remove Retis in several minutes, and you will be able to focus on data recovery. Don't forget to use the instructions below which will show you how to restore data in case you don't have backups.

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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 Retis ransomware. 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.
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To remove Retis virus, follow these steps:

Remove Retis using Safe Mode with Networking

To terminate Retis ransomware you must disable the virus first:

  • 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 Retis

    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 Retis removal.

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

Remove Retis using System Restore

If the virus is still active and does not allow you to install the security software, try rebooting your computer into Safe Mode with Command Prompt.

  • 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 Retis. 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 Retis removal is performed successfully.

Bonus: Recover your data

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

Professional Data Recovery Pro tool

This program might be helpful not only after ransomware attack, but also when you want to recover files which have been accidentally deleted. Thus, we highly recommend using this tool.

Windows Previous Versions feature could help you

Windows users are able to take advantage of this in-built function to restore their files from their previous versions. However, note that this function requires System Restore function to operate. Therefore, check whether it was enabled before ransomware infiltration.

  • 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”.

Give a try to ShadowExplorer

This software uses Shadow Volume Copies to help you recover corrupted data. Likewise, make sure that they are in place and follow the instructions below.

  • 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.

Unfortunately, official Retis decryptor hasn't been released yet

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

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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