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What is BIG HEAD Ransomware

BIG HEAD is a type of ransomware that encrypts files on a victim’s computer and demands a ransom payment in exchange for the decryption key. The ransomware was first discovered in May 2023 and has multiple variants. The ransomware encrypts files using AES encryption and changes filenames and encryption to random set of letters and numbers. During the encryption process, BIG HEAD displays a fake Windows update screen to deceive users and effectively lock them out of their machines. The ransomware also renames the encrypted files using Base64 encoding to provide an extra layer of obfuscation. BIG HEAD ransomware creates a text file named README_[random_number].txt, which serves as a ransom note.

README_(random_number).txt
Hello! All your files have been encrypted & leaked... BY BIG HEAD RANSOMWARE
Your personal Id:
{redacted}
To decrypt your files you need write to email: poop69news@gmail.com
In the letter, send your personal Id
Do not try restore files without our help, this is useless, and can destroy you data permanetly.
However, the files can be recovered even after the removal of our program and even after
reinstalling the operating system.

The note indicates that the ransomware has encrypted and leaked the victim’s files and provides an email address for the victim to contact the attackers. The victim is instructed to email the attackers and send the provided personal ID to obtain the decryption key. The note also warns against attempting to restore the files without the hackers’ help, as it could result in permanent data loss. Paying the ransom to BIG HEAD ransomware attackers is generally not recommended because there is no guarantee that they will provide the decryption key. Instead, it is recommended to remove BIG HEAD virus core and try instructions in this article to attempt decrypting affected files.

big head ransomware

How BIG HEAD Ransomware infected your computer

BIG HEAD ransomware is distributed via spam and phishing emails, which may pretend to be sent from legitimate sources. Once the ransomware gains access to a system, it drops one or more executable files in the %AppData% Windows directory and modifies the Windows registry entries. To prevent BIG HEAD ransomware infection, it is recommended to be cautious when opening emails and attachments from unknown sources. Having reputable antivirus software installed can further enhance the protection. If your computer has been infected by BIG HEAD ransomware, it is recommended to turn off the computer immediately and seek professional help.

  1. Download BIG HEAD Ransomware Removal Tool
  2. Get decryption tool for encrypted files
  3. Recover encrypted files with Stellar Data Recovery Professional
  4. Restore encrypted files with Windows Previous Versions
  5. Restore files with Shadow Explorer
  6. How to protect from threats like BIG HEAD Ransomware

Download Removal Tool

Download Removal Tool

To remove BIG HEAD Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of BIG HEAD Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.

Alternative Removal Tool

Download Norton Antivirus

To remove BIG HEAD Ransomware completely, we recommend you to use Norton Antivirus from Symantec. It detects and removes all files, folders, and registry keys of BIG HEAD Ransomware and prevents future infections by similar viruses.

BIG HEAD Ransomware files:


README_[random_number].txt
{randomname}.exe

BIG HEAD Ransomware registry keys:

no information

How to decrypt and restore encrypted files

Use automated decryptors

Download Kaspersky RakhniDecryptor

kaspersky dharma ransomware decryptor

Use following tool from Kaspersky called Rakhni Decryptor, that can decrypt encrypted files. Download it here:

Download RakhniDecryptor

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of encrypted files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with BIG HEAD Ransomware and removed from your computer you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:

Use Stellar Data Recovery Professional to restore encrypted files

stellar data recovery professional

  1. Download Stellar Data Recovery Professional.
  2. Click Recover Data button.
  3. Select type of files you want to restore and click Next button.
  4. Choose location where you would like to restore files from and click Scan button.
  5. Preview found files, choose ones you will restore and click Recover.
Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

  1. Right-click on infected file and choose Properties.
  2. Select Previous Versions tab.
  3. Choose particular version of the file and click Copy.
  4. To restore the selected file and replace the existing one, click on the Restore button.
  5. In case there is no items in the list choose alternative method.

Using Shadow Explorer:

  1. Download Shadow Explorer program.
  2. Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
  3. Select the drive and date that you want to restore from.
  4. Right-click on a folder name and select Export.
  5. In case there are no other dates in the list, choose alternative method.

If you are using Dropbox:

  1. Login to the DropBox website and go to the folder that contains encrypted files.
  2. Right-click on the encrypted file and select Previous Versions.
  3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like BIG HEAD Ransomware , in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

Download ZoneAlarm Anti-Ransomware

2. Back up your files

idrive backup

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. BIG HEAD Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

mailwasher pro

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro
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James Kramer
Hello, I'm James. My website Bugsfighter.com, a culmination of a decade's journey in the realms of computer troubleshooting, software testing, and development. My mission here is to offer you comprehensive, yet user-friendly guides across a spectrum of topics in this niche. Should you encounter any challenges with the software or the methodologies I endorse, please know that I am readily accessible for assistance. For any inquiries or further communication, feel free to reach out through the 'Contacts' page. Your journey towards seamless computing starts here