Betta Ransomware

Also Known As: Betta virus
Distribution: Low
Damage level: Severe

Betta ransomware removal instructions

What is Betta?

First discovered by Jakub Kroustek, Betta is one of many high-risk ransomware-type viruses and originates from the Dharma family. This ransomware encrypts most data and adds the ".[].betta" extension to every encrypted file. For example, a file named "1.jpg" becomes "1.sample.[].betta" when encrypted. Encryption renders affected files unusable. If your computer has been infected with the Betta ransomware-type virus, you will encounter a pop-up window titled "All your files have been encrypted!".

According to the "All your files have been encrypted!" pop-up window, files have been encrypted due to supposed security problems with the computer. Cyber criminals (Betta developers) state that, if users want to restore their files, they need to contact them via the email address provided. Betta developers offer free decryption of one file as 'proof' that they can be trusted. To decrypt the remaining encrypted files, they demand payment of a ransom in Bitcoins, however, the cost of file decryption is not stated (this supposedly depends on how quickly victims contact cyber criminals), and the cryptography used to encrypt files (usually, symmetric or asymmetric cryptography). Cyber criminals encourage victims not to rename encrypted files or try to decrypt them using third party software. They claim that these attempts will only increase the cost of decryption, however, these (and other) cyber criminals should never be trusted. Typically, they ignore victims even if the demands are met and ransoms paid. People are often scammed into paying money to cyber criminals for nothing in return. Unfortunately, there is no way to decrypt files encrypted by Betta free of charge (there are no free tools capable of doing this). The only way to restore them is to use an existing backup.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

Betta decrypt instructions

As mentioned in the introduction, Betta is just one of many ransomware-type viruses. Other similar viruses of this type include Charm, FilesLocker, and Katyusha. These viruses are developed by different cyber criminals, but most share an identical purpose: to encrypt files and make ransom demands. In most cases, the only differences are the algorithm to decrypt files and the cost of decryption/ransom amount, however, the biggest problem is that most cyber criminals use cryptographies that generate unique/individual decryption keys. These are stored on a remote server that can be accessed only by cyber criminals. Unfortunately, it is impossible to decrypt the files manually, without Betta developers' involvement. If the virus is not developed and contains bugs/flaws, this may present a chance of decryption. Due to the existence of these ransomware viruses, you are advised to regularly create data backups, and to keep them stored on a remote server or unplugged storage device. If not, backups might be encrypted with other regular data.

How did ransomware infect my computer?

It is not known exactly how Betta developers proliferate this ransomware-type virus, however, there are few most common ways. Typically, they are distributed using spam email campaigns, trojans (malicious programs), P2P (peer-to-peer) networks, third party software download channels, and fake software updaters/update tools. Spam campaigns deliver malicious attachments that, if opened, download malware. Trojans are malicious programs that cause chain infections and, once installed, proliferate even more viruses. Various untrustworthy software download channels (freeware download websites, free file hosting sites) and P2P networks (eMule, torrents etc.) often present malicious software as legitimate software. Users are tricked into downloading malware rather than legitimate software. Fake software updaters/update tools usually infect systems when they exploit outdated software and associated bugs/flaws, and download (and install) malware rather than the updates.

Threat Summary:
NameBetta virus
Threat TypeRansomware, Crypto Virus, Files locker
SymptomsCan't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Distribution methodsInfected email attachments (macros), torrent websites, malicious ads.
DamageAll files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.

To eliminate Betta virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

Take precautions - browse the web and download/install/update software with care. Emails and attachments sent from unknown/suspicious addresses should not be opened. Carefully analyze each email attachments and open it only when you are sure that it is trustworthy. Do not download (or install) software using third party downloaders or installers. These are usually monetized by promoting (bundling) untrustworthy/rogue applications. Download software using official, trustworthy sources only, and using direct links. Keeping software updated is important, but use only tools that are provided by official software developers and not third party updaters. Finally, have reputable anti-virus/anti-spyware software installed and enabled at all times. If your computer is already infected with Betta, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in Betta ransomware text file :

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
Write this ID in the title of your message 1E857D00
In case of no answer in 24 hours write us to theese e-mails:
You 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 guarantee
Before 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 Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.
Also you can find other places to buy Bitcoins and beginners guide here:
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.

Screenshot of files encrypted by Betta (".[].betta" extension):

Files encrypted by Betta

Betta ransomware removal:

Instant automatic removal of Betta virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Betta virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the Betta virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the Betta ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Betta ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of Betta are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by Betta, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as Betta ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove Betta ransomware: