Boost Ransomware: A Growing Cyber Threat

Ransomware continues to be a prevalent and damaging menace. Among the latest threats is Boost ransomware, a highly malicious variant that encrypts victims’ files, demanding a ransom for their release. Understanding the actions, consequences, and methods to combat Boost ransomware is crucial for individuals and organizations to protect their data and systems.

Actions and Consequences of Boost Ransomware

How Boost Ransomware Operates

Boost ransomware typically infiltrates systems through phishing emails, malicious attachments, or exploit kits. Once inside, it executes the following actions:

1. Encryption of Files: The ransomware scans the infected system for a wide range of file types, including documents, images, videos, and databases. It uses a robust encryption algorithm to lock these files, making them inaccessible to the user.
2. Ransom Note Display: After encryption, Boost ransomware generates a ransom note, often in the form of a text file or HTML page. This note informs the victim of the encryption and provides instructions on how to pay the ransom, usually in cryptocurrency, to obtain the decryption key.
3. Deletion of Shadow Copies: To prevent victims from recovering their files through system backups, Boost ransomware deletes shadow copies and other backup files stored on the system.
4. Persistence Mechanisms: The malware may also create persistence mechanisms to ensure it runs on system startup, making it harder to remove.

Consequences of Infection

The impact of a Boost ransomware attack can be devastating:

• Data Loss: Without the decryption key, victims face permanent loss of their encrypted data.
• Financial Loss: Paying the ransom does not guarantee file recovery and can encourage further attacks. Additionally, there are financial costs associated with system downtime and recovery efforts.
• Operational Disruption: Infected systems are often rendered unusable, leading to significant operational disruptions, particularly for businesses.
• Reputation Damage: Businesses may suffer reputational harm if they are unable to protect customer data and maintain operational integrity.

Text in this ransom note

All your files have been encrypted!All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail boston.crypt@tuta.ioWrite this ID in the title of your message –In case of no answer in 24 hours write us to theese e-mails:boston.crypt@tuta.ioYou have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guaranteeBefore paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain BitcoinsThe easiest way to buy bitcoins is LocalBitcoins site. You have to register, click ‘Buy bitcoins’, and select the seller by payment method and price. hxxps://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: hxxp://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention!Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Boost’s text file (“FILES ENCRYPTED.txt“):

all your data has been locked us

You want to return?

write email boston.crypt@tuta.io

Detection Names and Similar Threats

Boost ransomware is detected by various antivirus engines under different names. Some of these detection names include:

• Trojan.Ransom.Boost
• Ransom.Boost
• Win32/Boost.Ransom

Similar ransomware threats that have caused significant harm include:

• Ryuk Ransomware: Known for targeting large organizations and demanding high ransoms.
• Sodinokibi (REvil) Ransomware: A prolific ransomware variant associated with high-profile attacks and data breaches.
• Dharma Ransomware: A widely spread ransomware family known for its frequent updates and variations.

Removal Guide for Boost Ransomware

Removing Boost ransomware requires a methodical approach. Follow these steps to clean an infected system:

Step 1: Isolate the Infected System

Immediately disconnect the infected system from the network to prevent the ransomware from spreading to other devices.

Step 2: Enter Safe Mode

Restart the computer in Safe Mode to prevent the ransomware from running during the removal process. To do this:

1. Reboot the system.
2. Press F8 (or the appropriate key for your system) before Windows starts.
3. Select “Safe Mode with Networking” from the options menu.

Step 3: Delete Temporary Files

Deleting temporary files can help speed up the scan and removal process:

1. Open the Start menu and type “Disk Cleanup.”
2. Select the drive you want to clean up.
3. Check “Temporary files” and click “OK” to delete them.

Step 4: Identify and Terminate Malicious Processes

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Look for suspicious processes related to Boost ransomware (e.g., unusual names or high resource usage).
3. Right-click the malicious process and select “End Task.”

Step 5: Remove Ransomware Files

1. Open File Explorer and navigate to the following directories:
   • %AppData%
   • %LocalAppData%
   • %ProgramData%
2. Look for recently created suspicious folders and files, particularly those with random names or extensions.
3. Delete any files or folders associated with the ransomware.

Step 6: Check Startup Entries

1. Press Win + R, type “msconfig,” and press Enter.
2. Go to the “Startup” tab and look for suspicious entries.
3. Uncheck any suspicious items and click “Apply.”

Step 7: Restore System and Files

If you have backups, restore your system and files from a clean backup. Avoid using backups that might be infected.

Step 8: Use Built-In Security Tools

1. Run Windows Defender or another built-in antivirus tool to scan and remove any remaining threats.
2. Update your operating system and all software to the latest versions to patch vulnerabilities.

Best Practices for Preventing Future Infections

To safeguard against future ransomware attacks, consider the following best practices:

1. Regular Backups: Frequently back up your data to an external hard drive or cloud storage. Ensure backups are not connected to your network to avoid encryption by ransomware.
2. Security Software: Use comprehensive antivirus and anti-malware software. Keep it updated to protect against the latest threats.
3. Email Security: Be cautious with email attachments and links, especially from unknown senders. Use email filtering and spam detection tools.
4. Software Updates: Keep your operating system and software up to date to protect against known vulnerabilities.
5. User Education: Educate employees and users about the risks of ransomware and safe online practices.
6. Network Segmentation: Segment your network to limit the spread of ransomware and protect critical systems.
7. Access Controls: Implement strong access controls and least privilege principles to minimize the risk of unauthorized access.

By understanding the mechanics of Boost ransomware and implementing robust security measures, you can significantly reduce the risk of falling victim to this dangerous cyber threat. Stay vigilant and proactive to protect your valuable data and systems.

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