THREAT REMOVAL

LOCK Ransomware Removal Guide

In this article, you will find more information about LOCK ransomware virus as well as a step-by-step guide on how to remove malicious files from an infected system and how to potentially recover files encrypted by this ransomware.

LOCK ransomware ransom note HOW TO DECRYPT FILES txt

LOCK Ransomware

The LOCK ransomware is malicious software that interferes with essential operating system’s settings in order to reach personal files and encrypt them. The moment it activates its built-in cipher module, the data corruption process begins. Following this process, most of your valuable files remain inaccessible. Hence, you cannot open and use files that are marked with the malicious extension .LOCK. According to the cybercriminals who stand behind the attacks with LOCK ransomware, victims should purchase a key from them to decrypt .LOCK files. We strongly advise against following their demands. Cybercriminals may not keep their promises.

Threat Summary

NameLOCK ransomware
TypeRansomware, Cryptovirus
Short DescriptionSevere malware that is designed to encrypt valualbe files stored on the systems it infects. It extorts a ransom fee from victims.
SymptomsFiles are encrypted and renamed with the .LOCK malicious extension. A ransom message insits that victims should pay $300 in Bitcoin for the decryption of their encrypted files.
Distribution MethodSpam Emails, Email Attachments, Hacked Websites
Similar MalwareExe, Major, Vaca
Detection Tool See If Your System Has Been Affected by malware

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User ExperienceJoin Our Forum to Discuss LOCK ransomware.
Data Recovery ToolWindows 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.

LOCK Virus (Xorist Ransomware)

The payload file that triggers an infection with LOCK virus is most likely spread via spam email campaigns. Emails that attempt to deliver malicious code on users’ devices are often designed to impersonate representatives of well-known businesses, websites, and even governmental institutions. This way they make people more prone to start malicious code on their PCs.

To prevent falling victim to malicious emails, we recommend the following:

  • Look for spell errors.
  • Check the grammar.
  • Pay attention to the email address – shoul it be considered as a legitimate or as a suspicious?
  • Upload attached files to an online virus scanner like VirusTotal before opening them on your computer.
  • Do the same with all links you see.
  • Do not rush into following presented requirements.

As regards the malicious code that triggers LOCK ransomware, it may be disguised as a file attachment (a document; an image; an archive; a PDF) or as a URL address that opens a web page that hosts the malicious code and is set to download it with the help of a script.

In order to stay safe in future, we recommend that you also check our forum for several safety tips that could help you to keep ransomware infections like LOCK virus away from your computer operating system in future.

LOCK virus is yet another threat that accesses computer systems with the goal to encode valuable personal files and extort a ransom from victims. As identified by security researchers, this cryptovirus belongs to Xorist ransomware family.

When started on a computer operating system, LOCK ransomware will create a bunch of malicious files that support the attack. Analyses of its sample reveal that the threat uses the following folders for the storage of malicious files:

  • %AppData%
  • %Local%
  • %LocalLow%
  • %Roaming%
  • %Temp%

The execution of these files leads to serious modifications that affect essential system settings. Most of the changes are implemented to support further malicious activities that will enable the ransomware to reach the main infection stage – data encryption.

Once it reaches this stage, LOCK ransomware activates a built-in encryption module that is designed to find all target files and encrypt them with the help of strong cipher algorithm. It is known that all of the files that belong to the following list are among the targets of LOCK ransomware virus:

→.1cd, .3gp, .7z, .ac3, .ape, .avi, .bmp, .cdr, .cer, .dbf, .divx, .djvu, .doc, .docx, .dwg, .flac, .flv, .gif, .gzip, .htm, .html, .ifo, .jpeg, .jpg, .kwm, .lnk, .m2v, .max, .md, .mdb, .mdf, .mkv, .mov, .mp3, .mp4, .mpeg, .mpg, .odt, .p12, .pdf, .pfx, .png, .ppt, .pptx, .psd, .pwm, .rar, .tar, .torrent, .txt, .vob, .wav, .wma, .wmv, .xls, .xlsx, .zip

This includes:

  • Audio files;
  • Video files;
  • Document files;
  • Image files;
  • Backup files;
  • Banking credentials, etc.

The LOCK’s ransom messages has a quite common name HOW TO DECRYPT FILES.txt. The ransomware drops this message with the goal to convince victims to pay a ransom fee for .gula files to hackers.

The text in LOCK ransomware’s ransom note states:

All of your files are encrypted
To decrypt it you must purchase a key from the Get the decryption key.exe file on your desktop

We know that if you are a victim of Gula ransomware you need to restore .LOCK files as soon as possible. However, we advise you to refrain from giving your money to cybercriminals.

The good news is that a fully composed free decryption tool for Xorist ransomware family was released by security researchers at Emsisoft. So victims could be able to decrypt all your LOCK files by simply downloading the tool from the official website of the company. All malicious entries have to be deleted from the infected system in order that it can be used safely again.

LOCK Ransomware Removal and Recovery Guide

LOCK ransomware is a threat with a highly complex code. It heavily damages essential system settings and valuable files. The only way to use securely your infected computer system again is to remove all malicious files and objects created by the ransomware. For the purpose, you should complete several removal steps. The illustrated ransomware removal guide below enables you to follow these steps and clean your system manually or automatically. If you don’t feel quite comfortable with the manual steps, it will be better to download the presented an advanced anti-malware tool as it will do the job for you.

In the event that you want to attempt to restore .LOCK files check step five – Try to Restore files encrypted by LOCK ransomware. It reveals reliable alternative data recovery methods. We remind you that copies of all encrypted files should be kept on an external drive. This measure will prevent their inevitable loss.

Gergana Ivanova

Gergana Ivanova

Gergana has a bachelor's degree in Marketing. She has been with the STF team for five years, researching malware, reporting on the latest computer infections, and following digital marketing trends.

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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 LOCK ransomware from Windows.


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

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 LOCK ransomware 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 LOCK ransomware 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 LOCK ransomware 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 LOCK ransomware 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 LOCK ransomware.

Ransomware infections and LOCK ransomware 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 LOCK ransomware from Mac OS X.


Step 1: Uninstall LOCK ransomware 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 LOCK ransomware:

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 LOCK ransomware. 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 LOCK ransomware. 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 LOCK ransomware 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 LOCK ransomware. 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 LOCK ransomware:


Download

SpyHunter for Mac



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

Ransomware infections and LOCK ransomware 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.


LOCK ransomware FAQ

What is LOCK ransomware ransomware and how does it work?

LOCK ransomware 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 LOCK ransomware ransomware infect my computer?

Via several ways.LOCK ransomware 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 LOCK ransomware 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 .LOCK ransomware files?

You can't. At this point the .LOCK ransomware 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 .LOCK ransomware files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by LOCK ransomware 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 ".LOCK ransomware" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .LOCK ransomware 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 LOCK ransomware 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 LOCK ransomware ransomware and then remove it without causing any additional harm to your important .LOCK ransomware files.

Also, keep in mind that viruses like LOCK ransomware 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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