Severity scale:  
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Boost ransomware. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware

Boost ransomware is a cryptovirus released by notorious Dharma developers 

Boost ransomware virus
Boost ransomware is a cryptovirus that focuses on file-lockin with the goal of extorting money.

Boost ransomware — a cyber threat developed by crypto extortionists to make users' files useless and then convince them to pay a ransom. This particular ransomware virus belongs to Dharma ransomware family which has been known since 2016. The intruder already has more than 15 variants and it seems that it is not going to stop. The recent ransomware[1] variant relies on AES encryption method to make victims' data useless. Additionally, it adds .boost file extension to encoded data to mark these files. To inform its victim about the attack, the virus also drops a ransom note in every folder on the infected computer. Unfortunately, if infected with Dharma-Boost ransomware, your data becomes useless and the only solution you have is to get rid of malware first and then restore your files from a backup or with the help of several methods given below this article.

Name Boost ransomware
Type Cryptovirus
Related Dharma 
Other Versions
File extension .[boston.crypt@tuta.io].boost
Encryption method AES
Ransom note FILES ENCRYPTED.txt
Distribution Spam email attachments, exploit kits
Elimination Use antivirus tools to remove Boost ransomware. Repair virus damage using Reimage

Boost ransomware virus comes to your system via spam email attachments infected with its installation file. Mostly, such files are named as “invoice” or “business report”. Once on the system, this virus starts scanning the system and finds out if your data has ever been encrypted[2] or not. After that scan, the encryption process begins by choosing certain files for encryption. Beware that ransomware can affect any data format and make it useless. You can see which data is encrypted by looking at files' extensions – infected files are marked with .[boston.crypt@tuta.io].boost appendix.

When the encryption procedure is finished, Boost ransomware creates a ransom note and, since it is associated with Dharma, it names it like FILES ENCRYPTED.txt file on so. The ransom message is designed to inform the victim about the ransomware attack and instruct on further actions. 

Ransom note states the following:

all your data has been locked us
You want to return?
write email boston.crypt@tuta.io

In its ransom note, the virus may suggest that the only option you have, regarding your locked data, is to pay the ransom. However, you need to remove Boost ransomware and then think about data recovery. There is no decryption tool released for this virus yet, so backups, extra copies saved on external drives or cloud services are the best options. Additionally, you can try data recovery software which is suggested down below.

Boost ransomware removal requires tools designed for malware detection and elimination. An anti-malware can work perfectly for this if you choose a reputable developer and the latest program's version. When your system is cleared from ransomware, you can fix virus damage by using Reimage. Finally, start data recovery procedure to recover your encrypted files.

Remember that Boost ransomware is a dangerous threat and can be persistent or even change registry entries on your device to make sure it is launched each time your computer is rebooted. You need to eliminate the cryptovirus, additional programs and fix virus damage before you focus on data recovery.

Boost ransomware
Boost ransomware is a cyber threat that was created by cybercriminals. Therefore you shouldn't pay the ransom.

Corrupted files attached to spam emails distribute ransomware payload

Various spam email campaigns are set to spread malware and ransomware is no exception. Hackers use these emails to distribute direct payload on the devices or spread malware designed to install ransomware on targeted devices. Unfortunately, these emails are disguised as legitimate ones.

Researchers[3] advise cleaning the spam email box more often so you can avoid getting cyber infections. You should look out for emails that contain subject lines with the word “invoice” or “order information”. Also, be sure that you are not opening the document from an email that is sent from the service you do not use or a company you haven't purchased anything recently.

Using well-known names like Paypal, eBay, Amazon or FedEx to disguise malicious files, can lure more people into opening those documents on their devices. Try to scan any document from an email before you open it on the system and clean the spam email box occasionally so you can avoid getting cyber infections. 

Boost ransomware elimination requires professional tools

Boost ransomware removal gives better results if you use reputable anti-malware tools like Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes. These programs are trustworthy and we can recommend them to you. Automatic virus elimination gives an advantage for you because it removes all additional files and programs during the ransomware termination.

To remove Boost ransomware safely, you need to use tools designed for this so that additional programs can be deleted from the system. If you have no backup to restore your files, try data recovery tips down below. Also, we have a few tips on virus termination too, so follow these steps if you want to clean your system thoroughly.

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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.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Boost virus, follow these steps:

Remove Boost using Safe Mode with Networking

Restore your device in Safe Mode with Networking if you want to remove Boost ransomware surely:

  • 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 Boost

    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 Boost removal.

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

Remove Boost using System Restore

Follow this guide and use System Restore feature:

  • 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 Boost. 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 Boost removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro can be used for file restoring

You can recover your encrypted data or accidentally deleted files with Data Recovery Pro

  • 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 Boost ransomware;
  • Restore them.

Windows Previous Versions feature can help if file recovery

If System Restore was enabled before the attack, you could recover your data with Windows Previous Versions feature

  • 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”.

Use ShadowExplorer for your encoded data

If Shadow Volume Copies were left by Boost ransomware, you need to try ShadowExplorer for file recovery

  • 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.

Decryption tool is not available

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Boost and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Lucia Danes
Lucia Danes - Virus researcher

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References