BTNW Ransomware. How to decrypt .btnw files?

If you cannot open your photos, documents, or other files and also see the .btnw extension on them, your system is definitely infected with Btnw ransomware. It belongs to STOP/Djvu ransomware group

Btnw ransomware encrypts personal documents located on the victim’s PC with the extension “.btnw” and then generates the ransom note in each folder which contains encrypted files. The instructions are put on the victim’s PC in the “readme.txt” file. Its activity is generally similar to other representatives of the same ransomware family: Matu, Maos, Manw.

What is Btnw Ransomware?

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

How dangerous is the Btnw ransomware?

When Btnw ransomware appears in your system, it will check your disks for images, videos, and 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 change their extension to “.btnw” to make sure that you understand what happened.

After the Btnw ransomware ciphered the files on your PC, it will drop the last “readme.txt” file on the desktop. Besides the ransom payment instructions, the victims also see the email addresses to contact the cybercriminals – datarestorehelp@airmail.cc and support@fishmail.top.

Here is the money ransom note that the Btnw 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 Btnw ransomware get on my computer?

The Btnw ransomware spreads by posting links to get hacked programs or games. They try to keep their eye on all hype topics which can be used to spread ransomware. New games releases, new popular movies – Btnw developers make whatever to get their victims on that. One of the most preferred strategies these criminals use is one-day sites with torrent downloading links. Nonetheless, using the current things is not the only way these burglars use. Ways that have already turned into classic, such as e-mail spamming, are likewise usual for STOP/Djvu ransomware spreading.

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

Avoiding this ransomware does not need a lot of initiative. Adhering to the standard rules of PC hygiene will noticeably decrease all hazards. Bear in mind that launching all documents you receive on email is not a great habit. Even worse situation is to enable macros in Microsoft Office files. But it is much better to stop 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 anticipate, as well as 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 shipment alert, however, uses the e-mail address of “amazonspurrot1363@gmail.com”– should make you be on the alarm. Above, you can see the illustration of such a message.

Illegal sources of various digital things require some additional explanation. Violating copyright policy surely exposes you to the chance of being fined. Nevertheless, using torrent trackers or third-party websites to download “free” programs likewise exposes you to different malware. Nobody can regulate unnamed people who launch the torrent seeding or publish the hacked program version on the website with pirated program.

Btnw virus removal instructions.

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

Restore the files encrypted by the Btnw ransomware

In most cases, it’s impossible to recover the files encrypted by the Btnw 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 Btnw 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 .btnw 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 Btnw 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 BTNW Ransomware Virus (DECRYPT .btnw FILES)

Name: BTNW Virus

Description: BTNW Virus is a STOP/DJVU family of ransomware-type virus. It encrypts files, video, photos, documents. Encrypted files can be tracked by a specific btnw extension. BTNW 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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