BTTU Virus (.bttu File) Ransomware — Remove & Decrypt Files

If you cannot open your photos, documents, or other files and see the .bttu extension on them, your PC is surely infected with Bttu ransomware. It pertains to STOP/Djvu ransomware group

Bttu ransomware encrypts personal files identified on the victim’s computer with the extension “.bttu” and then generates the ransom note in each folder which contains encrypted files. The instructions are placed on the victim’s PC in the “readme.txt” file. Its task is generally similar to other representatives of the same family: Btnw, Matu, Maos.

What is Bttu Ransomware?

Bttu is file-encrypting ransomware that prevents regular access to your text files, Excel tables, videos and images by ciphering them. It marks the encrypted files with the “.bttu” extension. Then Bttu ransomware adds a ransom note (readme.txt) to each folder. In it, you can see the instructions to pay the ransom ($490-$980 in Bitcoin) to a specified BTC wallet. The AES-256 or RSA-1028 cipher it uses to cipher the documents is not decryptable with contemporary computers. Even quantum computers that already exist will likely spend thousands of years to brute force the decryption key.

How dangerous is the Bttu ransomware?

When Bttu ransomware appears on your PC, it will check your disks for photos, videos, and also important documents. It encrypt] all widespread file formats- .psd, .doc, .docx, .xls, .xlsx, .pdf, .jpeg, .png, et cetera. When these files are found, the ransomware will encrypt them and also change their extension to “.bttu” to ensure that you understand what happened.

After the Bttu ransomware ciphered the data on your computer, it will generate the last “readme.txt” file on the desktop. Besides the money transferring instructions, the victims also see the email addresses to contact the cybercriminals – datarestorehelp@airmail.cc and support@fishmail.top.

Here is the ransom note that the Bttu ransomware shows to its victims:

ATTENTION!

Don't worry, you can return all your files!
All your files like pictures, 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-fhnNOAYC8Z
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:
support@fishmail.top

Reserve e-mail address to contact us:
datarestorehelp@airmail.cc

How did the Bttu ransomware get on my computer?

The Bttu ransomware spreads by posting links to download hacked programs or games. Cybercriminals that distribute this ransomware are quite foxy, and try to correspond with current things. New games introductions, new popular movies – Bttu creators make everything to get their money on that. One of the most preferred strategies these criminals utilize is one-day websites with torrent downloading links. Nonetheless, using the current trends is not the single tactic these burglars use. Methods that have already become classic, such as e-mail spamming, are likewise common for STOP/Djvu ransomware distribution.

The example of email spamming that may lead to Bttu ransomware injection

Preventing this ransomware does not need a lot of initiative. Considering the standard principles of computer hygiene will substantially reduce all hazards. Remember that starting all documents you receive on e-mail is not a good tactic. Even worse situation is to allow macros in Microsoft Office documents. But it is far better to avoid the malware attack at the moment when you have just opened the e-mail message. Inspecting the sender’s address can say a lot about what you can expect, and when you see the thing like “support@amazon.com”– it is likely a trustworthy e-mail. On the other hand, stuff that tries to resemble Amazon or FedEx delivery notice, however, uses the email address of “amazonspurrot1363@gmail.com”– should make you be on the alarm. Above, you can see the example of such a message.

Illegal sources of different digital things need some additional description. Breaking copyright law surely throws you to the chance of being fined. However, using torrent trackers or third-party websites to download “free” programs also exposes you to various malware. No one can regulate anonymous people that launch the torrent seeding or release the hacked program version on the website with pirated program.

Bttu virus removal instructions.

This guide below shows how to use Trojan Killer Portable³ for Bttu virus detection and removal:

Restore the files encrypted by the Bttu ransomware

In most cases, it’s impossible to recover the files encrypted by the Bttu ransomware because the private key needed to unlock the encrypted files is only available through cybercriminals. However, we’ve listed one option you can use to recover your files below.

Warning! Make sure you remove the ransomware from your system first, otherwise, it will repeatedly encrypt your files.

If your files were encrypted with an offline key, there is a chance you can recover them by using Emsisoft Decryptor for the STOP/Djvu decryption tool. Follow the below guide to recover your files using the Emsisoft Decryptor for STOP/Djvu.

1. You can download Emsisoft Decryptor for STOP Djvu by clicking this link.
2. When the decryptor has finished downloading, double-click on “decrypt_STOPDjvu.exe” to run this program on your computer.
3. Click the “Decrypt” button to start the decryption process for Bttu files. The screen will switch to a status view, informing you about your files’ current process and decryption status.
4. The decryptor will inform you once the decryption process will be finished. If you require the report for your records, you can save it by clicking the “Save log” button.

If the Emsisoft Decryptor can’t decrypt your .bttu files and you do not plan on paying the ransom, it is advised that you make an image of the encrypted drives so that you can decrypt them in the future.

Your computer should now be free of the Bttu ransomware infection. However, suppose your current antivirus allowed this malicious program on your computer. In that case, you might want to consider purchasing the full-featured version of Trojan Killer to protect against these types of threats in the future.

Remove BTTU Ransomware Virus (DECRYPT .bttu FILES)

Name: BTTU Virus

Description: BTTU Virus is a STOP/DJVU family of ransomware-type virus. It encrypts files, video, photos, documents. Encrypted files can be tracked by a specific bttu extension. BTTU ransomware asks victims for a ransom fee about $490 - $980 in Bitcoin.

Offer price: 480

Currency: $

Operating System: Windows

Application Category: Virus

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2. About DJVU (STOP) Ransomware: https://gridinsoft.com/ransomware/djvu
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