Severity scale:  
  (98/100)

Boris ransomware. How to remove? (Uninstall guide)

removal by Linas Kiguolis - - | Type: Ransomware

Boris – a sneaky crypto-virus that denies users the access to their personal files

Boris virus
Boris - ransomware which encrypts files by adding .boris extension.

Boris ransomware[1] is a data locker which encrypts files using AES-256 cipher and is based on the infamous HiddenTear virus. Once installed through a malicious spam email attachment or downloaded from a malicious website, it adds [decode77@sfetter.com].boris appendix personal files and drops a ransom note README.txt. Cybercriminals seek to gain money from victims. They inform users about the encryption via the ransom note and urge them to pay a certain price in Bitcoin in order to receive a decryption tool for the inaccessible files.

Name Boris
Type Ransomware
Extension .boris
Ransom note READ.ME.txt
Affects Personal files
Distribution Via spam emails, harmful sites, etc.
Elimination Trustworthy help is required in order to eliminate the crypto-malware. Use Reimage to get rid of the ransomware infection from your computer systems.

Decryption tool is stored on a remote server and safely hidden by hackers. Unfortunately, because the key is unique to each of the infected victims, restoring files without it becomes almost impossible. Nevertheless, the first step to secure computer is to remove Boris virus from the infected device. We highly recommend using Reimage or any other reputable security software.

The ransomware is using hidden-tear.exe executable to infect machines, and many AV engines recognize[2] it as a HiddenTear virus. Although most of the variants of this malware are decryptable, it is unclear whether or not the decryptor will work for Boris ransomware. Nevertheless, we suggest users try it, as it may succeed.

Other file recovery methods include:

  • Restoring files from a backup. External HDD or USB stick, as well as virtual cloud services, will do;
  • Using third-party software. These applications might be able to help you with file decryption, although chances are not high. Please see the instructions below this article;
  • Waiting for an independent security researcher to crack malware's code and create a decryptor.

As you can see, the recovery is possible, and paying cybercrooks is not the option to choose. 

There are two versions of ransom note that are being distributed – one in English and another one in Russian. This can implicate that .boris ransomware authors might be English or Russian, or specifically target people from these countries. Nevertheless, the infection can occur anywhere in the world. The ransom note does not disclose much:

Your files are encrypted! If you want to restore data email decode77@sfletter.com:

Do not contact criminals via the provided address and do not pay the ransom. First of all, hackers may take your money and never send you the key, or upload malware instead, which will damage your PC even more. Additionally, knowing that you are prone to paying money, they might target you in the future again.

All in all, let security software to take care of Boris ransomware removal, as manual elimination is almost impossible. Only after the malware is deleted you can proceed with file recovery procedure; otherwise, data from backups will be encrypted as well.

Avoid ransomware-type infections

To stay safe from ransomware, you have to know how it is distributed. First, let's talk about virus distribution ways. You can catch such infection by browsing various suspicious sites, clicking on suspicious hyperlinks, or downloading repacked or cracked software. Thus, you should avoid visiting questionable websites and use trusted sources for your downloads. Remember that any executable can be malicious. Thus, scan it with security software before opening.

However, the most prevalent ransomware distribution method is via phishing emails. Cybercrooks employ bots to send out thousands of spam emails daily which reach random or targeted users. The malicious payload can be carried inside the attachment or can be transferred once the user clicks on a cleverly disguised hyperlink that is downloaded from a remote server. Thus, do not open attachments or click on links inside emails from unknown sources.

Other ransomware infiltration methods include:

  • Unprotected RDP configuration;
  • Exploit kits;[3]
  • Web injects;
  • Fake updates, etc.

Therefore, make sure you update your software as soon as new patches are out and use strong passwords for all your accounts.

Use security software to get rid of Boris cryptovirus

To remove Boris virus successfully, you will need to install a professional anti-malware tool. We strongly advise using Reimage, Malwarebytes, or Plumbytes Anti-MalwareNorton Internet Security. As mentioned above, ransomware uses a sophisticated code that modifies your system, and changing it back manually is almost impossible. 

In case malware is blocking the operation of anti-virus software, security researchers[4] recommend rebooting your PC in Safe Mode with Networking as explained below. This will ensure the successful Boris ransomware removal. 

Offer
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 you agree to our privacy policy and agreement of use.
do it now!
Download
Reimage (remover) Happiness
Guarantee
Download
Reimage (remover) Happiness
Guarantee
Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. 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.

If you decided to select another anti-spyware, uninstall Reimage from your computer.
Press mentions on Reimage
Alternate Software
Malwarebytes
Alternate Software
Malwarebytes

To remove Boris virus, follow these steps:

Remove Boris using Safe Mode with Networking

Access the Safe Mode function with Networking to stop the virus:

  • 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 Boris

    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 Boris removal.

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

Remove Boris using System Restore

Try using System Restore to disable the ransomware:

  • 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 Boris. 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 Boris removal is performed successfully.

Bonus: Recover your data

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

Boris ransomware has done serious damage to your files – they are locked up and cannot be opened. In order to decrypt important data, look through the following data recovery methods.

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

Try using Data Recovery Pro:

This professional decryption tool might help you with encrypted data

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by Boris ransomware;
  • Restore them.

Use Windows Previous Versions feature to recover individual files:

Note that this method will only work if you enabled the System Restore function before the virus 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”.

ShadowExplorer is another method which can be useful in data recovery:

You can try using ShadowExplorer if the virus did not delete Shadow Volume Copies of your files.

  • 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.

No official Boris ransomware file decryptor has been released yet.

Nevertheless, users can try HiddenTear official decryptor.

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

If this free removal guide helped you and you are satisfied with our service, please consider making a donation to keep this service alive. Even a smallest amount will be appreciated.

Contact Linas Kiguolis
About the company Esolutions

References