How to remove 1BTC Ransomware and decrypt .1BTC files

What is 1BTC Ransomware

Discovered by Jakub Kroustek, 1BTC Ransomware is a malicious variant that stems from the infamous Dharma ransomware family. It operates by encrypting a vast array of files stored on the victim’s system using the RSA-1024 encryption algorithm, making them inaccessible without a unique decryption key. Upon successful encryption, 1BTC appends each file with a specific extension that includes the victim’s unique ID, the developer’s email address, and the .1BTC extension. For example, a file originally named “sample.jpg” might be renamed to sample.jpg.id-{random-ID}.[btcdecoding@foxmail.com].1BTC. Following this, the ransomware creates a ransom note in the form of a pop-up window and a text file named RETURN FILES.txt, which is typically placed on the desktop. These notes instruct the victim to contact the ransomware developers via email and provide details on how to pay the ransom in Bitcoin to receive the decryption key.

At present, no legitimate decryption tools capable of cracking .1BTC encryption are publicly available. The sophisticated nature of the RSA-1024 encryption algorithm used by 1BTC Ransomware makes manual decryption virtually impossible without the private key that the cybercriminals possess. Therefore, the most reliable method to attempt recovery of encrypted files is through regular data backups. If backups are not available, victims are generally advised not to pay the ransom, as this does not guarantee file recovery and incentivizes the attackers. Utilizing reputable data recovery tools like Recuva might offer some chance of recovery, but success is not assured. In the absence of accessible decryption tools, the primary defense against ransomware such as 1BTC remains prevention, consistent data backup practices, and maintaining robust cybersecurity measures.

How 1BTC Ransomware infects computers

1BTC Ransomware infiltrates computers through various deceptive methods, primarily leveraging third-party software downloads, spam email campaigns, and malicious advertisements. Cybercriminals often disguise the ransomware as legitimate software on unofficial download sites, tricking users into downloading and executing the malware. Additionally, spam emails play a significant role; these emails contain malicious attachments or links disguised as important documents, such as invoices or receipts, which, when opened, execute the ransomware. Another common vector is the use of trojans that create backdoors for the ransomware to enter the system. Lastly, fake software cracks and updates are frequently employed, exploiting users’ desire to access premium features for free or keep their software updated, ultimately leading to the installation of 1BTC Ransomware.

1. Download 1BTC Ransomware Removal Tool
2. Get decryption tool for .1BTC 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 1BTC Ransomware

1BTC Ransomware files:


RETURN FILES.txt
{randomname}.exe


1BTC Ransomware registry keys:

no information

How to decrypt and restore .1BTC files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, that can decrypt .1BTC 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 .1BTC 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 1BTC 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 .1BTC files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select the type of files you want to restore and click Next button.
4. Choose the 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 a 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 are no items in the list, choose an alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it, and you will see a 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 an 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 1BTC 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

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. 1BTC 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

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