THREAT REMOVAL

BytesLocker Ransomware – How to Remove and Unlock Your PC

This article has been created in order to explain in detail what is BytesLocker ransomware virus and how to remove it completely from your PC.

The ransomware virus aims to perform an array of operations on the victim’s computer, the final of which results in the screen of the PC being locked and a message, beginning with “Your Windows has been Locked by BytesLocker” is displayed. In addition to this, the ransomware infection demands BitCoin ransom payoff in order to unlock the victim’s screen. Furthermore, it has also been reported that It may become unlock-able in the near future. In the meantime, if your computer has been infected by BytesLocker ransomware, we recommend that you read the following article and learn how to remove it and unlock your computer.

Threat Summary

Name BytesLocker
Type Ransomware, ScreenLocker
Short Description Aims to lock the screen on your computer and hold it hostage until you pay $150 in BitCoin to get sent an unlock code.
Symptoms The computer is locked with a lockscreen which does not allow you to do anything until you pay ransom.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware

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Malware Removal Tool

User Experience Join Our Forum to Discuss BytesLocker.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

BytesLocker Ransomware – How Does It Infect

In order to infect a given computer, BytesLocker is the type of malware which aims to perform various different types of activities that can lead to an infection with the virus and your screen being locked. To achieve this, the cyber-criminals may use a combination of tools that make the infection file of this malware to be concealed from any cyber-protection, such as antivirus, firewall, etc. Such technologies are often:

  • Malware obfuscators or crypters.
  • Downloaders.
  • Malicious macros.
  • Process injectors.
  • JavaScript URLs.

The main method by why the ones who infect with BytesLocker may use to spread the malware are reported to be via e-mail spam messages, that may use the names of big companies in order to get the victim to download the malicious file, believing it is a legitimate one. Such companies may be eBay, DHL, PayPal and other big names and the malicious attachments often pretend to be legitimate:

  • Invoices.
  • Receipts.
  • Order confirmation documents.
  • Banking statements or reports of suspicious activity on your account.

All of these may convince even experienced users that the downloaded file is legitimate, but if yo believe so, we suggest that you perform a check of the file before opening it, using your antivirus program’s on-demand scanner or using online scanner services, like ZipeZip or VirusTotal.

BytesLocker Ransomware – Malicious Activity

BytesLocker ransomware is the type of virus which is from the screenlocker kind, meaning that the malware locks the screen on your computer, making it virtually Impossible to use it until you pay a hefty ransom fee in BitCoin ($150) to unlock it.

The first activity on the computer of the victim, performed by BytesLocker is to connect the computer via an unsecured port. This may immediately result in the virus downloading it’s malicious payload via the intermediary malware it has caused the infection with. The payload’s primary file has been reported in VirusTotal to have the following parameters:

SHA-256: 44fc67fb3c0d97b3e1496fb4dbdcb573b4ce792413e85075af7082dd30443afe
File name: ByteLocker.exe
Size: 29 KB

After the file has been downloaded on the computer of the user it is immediately executed as a screenlocker Trojan. The virus then may attack the following Windows registry entries in order to lock the screen as an administrator:

→ HKU\Administrator\Software\Microsoft\Windows\CurrentVersion\Policies\System
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams\Desktop

In those sub-keys, registry entries, containing values may be created that may execute the lockscreen on system startup and modify the screensaver of the victim’s computer, so that it can no longer be turned off. This may immediately result in the virus force-resetting your computer system after which displaying it’s lockscreen message, reported to be the following:

Text from Image:

How can I unlock my windows???
It’s easy pay 150 dollars to bitcoin address below and we will get you decryption code:
BitCoin Address:
Enjoy (:

After doing so, the ransomware virus leaves the victim with no choice but to pay the ransom. However, we strongly advise you not to do so, because paying the ransom may result in your computer not being unlocked, because you cannot trust the cyber-criminals and furthermore, paying will help fund their ransomware operation. Either way, the best course of action is to focus on removing BytesLocker screenlocker completely from your computer.

Remove BytesLocker ScreenLocker Virus Fully

In order to remove this infection from your computer system, it is strongly advisable to follow the removal instructions below and bypass the lockscreen by entering Safe Mode. However, if you cannot remove BytesLocker manually from your computer, we would suggest scanning it by using an advanced anti-malware software and scan the hard drive on your PC from another operating system or computer that has access to it. Such program will automatically detect and remove all malicious files from your computer and make sure it stays protected against future screenlockers, like BytesLocker.

If you want to retrieve your files and directly reinstall Windows, then we would suggest that you remove the hard drive from your computer, following the instructions in this article and then use the following data recovery programs(or others you find useful) in order to scan your hard drive after you connect it to a safe computer.

For the recovery process, we have outlined several often-met drive migration scenarios which can be possible between different computers:

  • From Laptop to Laptop with no extra components.
  • From Desktop to Desktop with no extra components.
  • From Laptop to Desktop with a SATA cable if the Desktop has an outdated chipset.
  • From Desktop to Laptop with a SATA cable if the Laptop has a newer chipset.

To simplify the process, we recommend you to choose machines that do not require any extra cables or components for the drive to run on them. In case you do not have such possibility, we recommend using an external SATA-USB adapter.

Step 1: Remove battery and power from your laptop. For desktop computers, please remove eliminate the power from the contact.

Step 2: Using the screwdriver, unscrew the case which carries the hard drive. For laptops, you should follow these steps:

sensorstechforum-laptop-remove-bolts-sensorstechforum

Step 3: Remove the hard drive again with the screwdriver. It will look similar to the one on the picture below:

hard-drive-removal-sensorstechforum

Step 4: Plug-in the hard drive on a secure computer which has an internet connection and Windows installed and screw it in firmly. If connected directly, the hard drive should be detected by the OS as a separate partition, similar to the picture below:

1-hard-drive-detected-sensorstechforum-petya-ransowmare

Step 5: After you have connected the drive, you will likely not be able to open it, because it’s sectors are encrypted. However, because only some of the sectors are encrypted, enough to render the drive no longer openable, you may have a chance if you use a data recovery software to recover the files from the drive as you were scanning a lost partition. Most data recovery programs have support for scanning broken partitions, but we recommend you to try the following:

Stellar Phoenix Windows Data Recovery

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Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove BytesLocker from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove BytesLocker

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall BytesLocker and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by BytesLocker on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by BytesLocker there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for BytesLocker with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by BytesLocker.

Ransomware infections and BytesLocker aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of BytesLocker from Mac OS X.


Step 1: Uninstall BytesLocker and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to BytesLocker:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to BytesLocker. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to BytesLocker. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove BytesLocker via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as BytesLocker. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for BytesLocker:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by BytesLocker.

Ransomware infections and BytesLocker aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


BytesLocker FAQ

What is BytesLocker ransomware and how does it work?

BytesLocker is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does BytesLocker ransomware infect my computer?

Via several ways.BytesLocker Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of BytesLocker is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .BytesLocker files?

You can't. At this point the .BytesLocker files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .BytesLocker files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by BytesLocker ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".BytesLocker" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .BytesLocker files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of BytesLocker ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate BytesLocker ransomware and then remove it without causing any additional harm to your important .BytesLocker files.

Also, keep in mind that viruses like BytesLocker ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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