BTCWare Ransomware

Also Known As: BTCWare virus
Distribution: Moderate
Damage level: Severe

BTCWare ransomware removal instructions

What is BTCWare?

Discovered by malware researcher, MalwareHunterTeam, BTCWare is an updated version of a ransomware-type virus called Crptxxx. This ransomware is distributed via a malicious application called "Rogers Hi-Speed Internet". Once infiltrated, BTCWare encrypts files and appends filenames with the ".btcware" extension (e.g., "sample.jpg" is renamed to "sample.jpg.btcware"). Newer variants of this ransomware append .shadow, .payday, .wyvern, .nuclear, .aleta, .gryphon, .nopasaran, .blocking, .xfile, .master, .onyon, .theva, .cryptobyte or .cryptowin extensions to encrypted files. BTCWare then creates an HTM file ("#_HOW_TO_FIX_!.hta.htm"), placing it on the desktop. Other variants of this ransomware use !#_RESTORE_FILES_#!.inf file to store their ransom demanding message.

BTCWare's HTM file contains a short message that encourages users to visit a Tor website. After opening the website, victims are encouraged to pay a ransom of .5 Bitcoin (currently, .5 BTC is equivalent to approximately $490) to restore the files. Unfortunately, no additional information is provided. It is currently unknown whether BTCWare uses symmetric or asymmetric cryptography, however, decryption without a unique key is impossible. Cyber criminals store this key on a remote server and victims are encouraged to pay to receive it. In fact, paying does not guarantee that your files will ever be decrypted and cyber criminals often ignore victims once ransoms are paid. There is a high probability that paying will not deliver any positive result  and you might be scammed. Never attempt to contact these people or pay any ransom. Unfortunately, there are no tools capable of restoring files encrypted by BTCWare. Therefore, the only solution is to restore files/system from a backup.

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

BTCWare decrypt instructions

There are dozens of ransomware-type viruses similar to BTCWare including AngleWare, Zorro, and Flotera - these are just some examples from many. All of these viruses encrypt files and make ransom demands. The only major differences are size of ransom and type of encryption algorithm (symmetric/asymmetric) used. Cyber criminals often proliferate this kind of malware by employing fake software updaters, trojans, peer-to-peer (P2P) networks (such as torrents, eMule, etc.), third party software download sources (freeware download/free file hosting websites, etc.), and spam emails (malicious attachments).

Threat Summary:
NameBTCWare 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 BTCWare 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.

Therefore, keep your installed applications up-to-date and use a legitimate anti-virus/anti-spyware suite. Bear in mind, however, that criminals often use fake updaters to proliferate viruses. Therefore, updating installed apps via third party tools is not recommended. Furthermore, never download software from unofficial sources or open files received from suspicious emails. The key to computer safety is caution.

Screenshot of a desktop wallpaper used by this ransomware (calls itself "MASTER RANSOMWARE"):

btcware ransomware "master ransomware" variant wallpaper

Update 3 July 2017 - Cyber criminals have released another variant of this ransomware. It now calls itself ALETA. The ransom demanding message in this variant is stored in !#_READ_ME_#!.inf file. Encrypted files are given .aleta extension. For example 1.jpg after encryption would appear as 1.jpg.[].aleta The appearance of the desktop background used by this variant:

btcware ransomware aleta variant

List of email addresses used by cyber criminals to communicate with their victims: "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", “”, “”, “”, “”, “”, “”, “”, "", "", "", "", "", "".

Update 4 May 2017 - Security researcher Michael Gillespie has developed a free decrypted for this ransomware. You can download it HERE.


Another decrypter for this ransomware are available from Avast - you can download it HERE:

btcware ransowmare decrypter by avast

BTCWare ransom demanding message:

btcware ransomware restore files txt file

Text presented within BTCWare ransom demanding note ("#_HOW_TO_FIX_!.hta.htm" or "!#_RESTORE_FILES_#!.inf"):

Your important files produced on this computer have been encrypted due a security problem
If you want to restore them, write us to the e-mail:
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.

Before paying you can send to us up to 3 files for free decryption.
Please note that files must NOT contain valuable information
and their total size must be less than 1Mb

The easiest way to buy bitcoin is LocalBitcoins site.
You have to register, click Buy bitcoins and select the seller
by payment method and price

Do not rename encrypted files
Do not try to decrypt your data using third party software, it may cause permanent data loss
If you not write on e-mail in 36 hours - your key has been deleted and you cant decrypt your files

Your ID: -

Installer of "Rogers Hi-Speed Internet" - a fake software used to spread BTCWare ransomware:

Rogers Hi-Speed Internet installer

Screenshot of BTCWare ransomware website:

BTCWare website

Ransom-demand message presented within BTCWare website:

Recovery files. Telegram: @decryps
To decrypt files, you will have to pay 0.5 BTC
1. You should register Blockchain wallet
2. Buy bitcoins to your wallet.
3. Send 0.5 BTC to Bitcoin address: -
4. Enter you transaction ID: -
5. Press Win+R, type cmd and press Enter In appeared console:
1) Enter cd %appdata%
2) Enter biz net.exe -d your_decrypt_key and wait for decryption...
6. Finish. All the files decrypted.

Screenshot of files encrypted by BTCWare (".btcware" extension):

Files encrypted by BTCWare

Screenshot of files encrypted by BTCWare ransomware variant (appends .blocking extension to encrypted files - for example sample.jpg after encryption would appear as sample.[].blocking):

btcware ransomware .blocking variant

A variant of this ransomware using .[].master extension for encrypted files:

btcware ransomware .[].master extension

A variant of this ransomware using .aleta extension for encrypted files:

btcware ransomware (aleta variant) encrypted files

BTCWare ransomware removal:

Instant automatic removal of BTCWare 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 BTCWare 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 BTCWare 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 BTCWare 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 BTCWare 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 BTCWare 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 BTCWare, 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 BTCWare ransomware.

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 BTCWare ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Malware activity

Global virus and spyware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
BTCWare virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of BTCWare virus on your mobile device.
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Platform: Windows

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