Bttu Virus Removal Guide (+Decrypt .bttu files)

Bttu – Ransomware

Bttu is a malicious software application functioning as common ransomware. Michael Gillespie, the widely known virus researcher, first discovered this new name in the DJVU ransomware family.

Bttu was developed for the sole function to encrypt all popular file types. Logically, as soon as the file encryption is successfully achieved, the users are unable to get access to them. Bttu ransomware adds its own “.bttu” to all the encrypted files. For instance, the file “price_list.xls”, when crypted by Bttu, will be entitled as “price_list.xls.bttu”. As soon as the file encryption is achieved, Bttu puts its own distinct text file (_readme.txt) into all the folders that keep the encrypted files.

The alert specified by text file requesting for the random os extremely comparable to the alerts offered by other ransomware risks belonging to the DJVU family. The caution essentially indicates that the information has been secured and the only solution to get access to it is to use an unique standalone key. Regretfully, this statement is absolutely real.

The method to encrypt the files used by Bttu is not completely looked into. However, there is no doubt that each computer system owner might be released an unique decryption key, which is absolutely unique. It is extremely difficult to recuperate the data without the suitable key in location.

“Don’t worry, you can return all your files!”, from _readme.txt message:

One more peculiarity of the Bttu ransomware is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the total control by the scoundrels who have actually introduced the Bttu ransomware into the web. In order to acquire the key and restore the important information, the users are informed to get in touch with the frauds via email or by telegram and to pay the ransom in the quantity of $980.

The message also says that individuals ought to get in touch with the Bttu authors within 72 hours upon the moment of the information encryption. The alert shows that by doing so the people will obtain a 50% discount rate, for that reason, the ransom quantity falls to $490.

No matter what the quantity of the ransom is, we strongly recommend that you do not pay the ransom. There is no guarantee that these online crooks will keep their pledges, so they may not care at all what the victims feel about the encryption, even when the amount of the ransom is gotten into their accounts. Hence, paying ransom frequently does not result in an effective healing. So, the users might just lose their money for absolutely nothing.

Similarly, we prompt you not to get in touch with the scams as they instruct. Do not move cash into their wallets. There are no applications that might break the Bttu virus or bring back the information at no charge. For that reason, the only right decision is to restore the information from possible backups (if offered).

Virus Summary

Name Bttu Ransomware
File Extension bttu
Type Ransomware
Family DJVU
Short Description The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
Symptoms File encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .bttu extension to all the files modified by it.
Distribution Method Adware bundles and software cracks
Similar Infections Lokas, Besub, Nusar
Bttu Removal Tool   GridinSoft Anti-Malware
Bttu Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now filled with infections comparable to the Bttu virus. For example, this particular hazard is generally similar to Brusaf and other ransomware-type infections. These damaging utilities have actually been developed in order to encrypt the essential information and express the demand for the users to pay the ransom. All these infections use the similar algorithm to create the particular key for successful files decryption.

Unless the Bttu ransomware is still under the development process or has actually got some hidden bugs, it is not possible to restore the information manually. Thus, the only working service to avoid the loss of your crucial information is to frequently keep updated backups of all your essential data.

Another important piece of guidance is to save the backups on unique storage not linked to your primary PC. For instance, you might save it on the USB Flash Drive, or some external drive, or by using the cloud data storage services. Keeping the backups on your regular drive is very risky, given that the backup may likewise be encrypted by the Bttu ransomware.

Leakages for the Bttu ransomware attack.

Bttu uses numerous courses to infiltrate the vulnerable computer systems. It is not specific what particular technique was used in your case, nevertheless, the intrusion might happen via the following channels:

  • bundling with third-party programs, mainly freeware;
  • spam e-mails from the unknown senders;
  • websites providing free hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Bttu may disguise itself as some real application, for example, through the deceptive signals requiring setup of some software application upgrade. This is the most common technique utilized by the frauds to inject the Bttu infection files into the system. In this manner users partly participate in its setup, without clearly understanding the risk.

In addition, the frauds may send out unsolicited spam email with difficult signals encouraging individuals to open dubious accessories or click some download links, for example, those encouraging individuals to open particular images, text files, tax files and other info.

No doubt, opening these files or clicking the destructive links might basically harm the system. Fake Acrobat Reader update notifications may result in the Bttu ransomware seepage. Similarly, downloading the split software might furthermore include the ransomware installer. The last but not the least, installation of Bttu may occur through some Trojan horses that might be installed stealthily into the system and without the user’s direct permission and even authorization.

Preventing the Bttu attack.

Obviously, there is no absolute warranty that your computer system will be constantly free of any malware attacks, nevertheless, we wish to share some beneficial suggestions with you to make it much safer. Make sure to pay very close attention while browsing the web and particularly while downloading cost-free programs. Do not open any dubious e-mail accessories, especially if the sender is not known to you.

Do not forget that specific freeware installer may likewise include some other additional apps in the package. These additional applications may be really harmful. It is of utmost significance to keep your anti-virus software and your operating system in general to be always effectively updated.

It is quite logical that downloading cracked software is prohibited, however, additionally, such unapproved programs usage may likewise bring major damage to your computer. For this reason, do not download any broken programs. Plus, the truth that your current anti-virus did not safeguard the system from the Bttu ransomware is a good factor for you to reevaluate your choices and switch to another program that can render the protecting functions on a far better level.

Below please find the quotation from the Bttu text file:

ATTENTION!

 Don't worry, you can return all your files!
 All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
 The only method of recovering files is to purchase decrypt tool and unique key for you.
 This software will decrypt all your encrypted files.
 What guarantees you have?
 You can send one of your encrypted file from your PC and we decrypt it for free.
 But we can decrypt only 1 file for free. File must not contain valuable information.
 You can get and look video overview decrypt tool:
 https://we.tl/t-2P5WrE5b9f
 Price of private key and decrypt software is $980.
 Discount 50% available if you contact us first 72 hours, that's price for you is $490.
 Please note that you'll never restore your data without payment.
 Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.


 To get this software you need write on our e-mail:
 restorealldata@firemail.cc

 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch

 Our Telegram account:
 @datarestore

Screenshot of files with “.bttu” extension added by the virus:”

Use GridinSoft Anti-Malware to remove Bttu ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can get GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

3. Press Install button for run GridinSoft Anti-Malware.

3.Once installed, GridinSoft Anti-Malware will automatically run.

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Use Emsisoft Decryptor for restore bttu files

You can get Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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