.LCK virus file – what is it? The virus is known as Dharma ransomware which encrypts files and demands a ransom. .LCK virus file uses triplock@tutanota.com as mail for contacting the cybercriminals.
.LCK Virus Files – Dharma Ransomware Variant
The .LCK virus is a new iteration of the Dharma ransomware family. . The current version of the Dharma family ransomware encrypts files by appending the .LCK extension to them, making them inaccessible. It also may add a unique identification number as previous versions do. All encrypted files will receive the new extension as a secondary one. The ransomware drops a ransom note, which gives instructions to victims on how they can allegedly recover their files.
.LCK virus Summary
Name | .LCK virus |
File Extension | .LCK |
Type | Ransomware, Cryptovirus |
Short Description | The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them. |
Symptoms | The ransomware will encrypt your files by appending the .LCK extension to them, along with a unique identification number placing the new .LCK extension as a secondary. |
Distribution Method | Spam Emails, Email Attachments |
Detection Tool |
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User Experience | Join Our Forum to Discuss .LCK virus. |
.LCK File Virus (Dharma Ransomware) – What Is It and How Did I Get It?
.LCK virus files represent a new version of the Dharma ransomware family. It is created alongside other common strains of this group of threats. It likely follows the well-known model of purchasing custom versions by hacking groups on the underground forums. Such iterations of Dharma ransomware follow a predesigned infection pattern and execution, for this reason, we presume that popular strategies are going to be utilized. In this regard, the most efficient way of spreading such viruses is to create and distribute malware-infected copies. This is virus data encoded in standalone files, application installers, documents, and other commonly downloaded files from the Internet.
The criminals can use fake identities or hacked user’s accounts and post the files on popular online communities: social networks, forums, and chat rooms. Alternatively, they can use different types of manipulative tactics by creating hacker-controlled sites or email messages. They can be hosted on similar-sounding domain names to well-known portals and sites and may also include self-signed security certificates. Many virus-infected files are also uploaded to popular file-sharing networks. The most well-known example is BitTorrent which is used to distribute both legitimate and pirate data.
The .LCK virus infections will start a built-in sequence of malicious commands on the compromised machines. Across the known so far Dharma ransomware samples, it is customary for virus infection to begin with a data gathering process. It will seek to hijack personal user’s information, hardware components identification and any related application data. This is done to conduct further crimes such as identity or financial abuse. Many similar viruses are programmed to bypass installed security programs — this is done by looking up if there are any running engines and disabling them. This works for anti-virus programs, firewalls, intrusion detection systems, and virtual machine hosts.
Having a .LCK virus installed might also lead to system changes that can change the way the computer normally works. Most of them are associated with boot changes that institute the ransomware as a persistent threat, meaning that it will get started automatically when the device is powered on. In some cases, this will also block the users from being able to access the recovery boot options. If Windows Registry changes are run, the modifications may lead to severe performance issues, the inability to run certain services, and data loss.
Any other modules and components can be run afterward according to the individual instructions of the attack campaign. When everything has finished running the actual encryption phase will begin. According to the instructions given out by the engine target data will be processed by a very strong cipher: archives, backups, documents, multimedia files and etc. The .LCK extension will be applied to every processed file. Ransomware notes or lockscreen instances will be shown to the victims to blackmail them into paying a decryption fee.
If your computer device was infected with this ransomware and your files are locked, read on through to find out how you could potentially restore your files back to normal.
Remove .LCK File Virus (Dharma)
If your computer got infected with the .LCK File Virus, you should be experienced in removing malware manually. You should get rid of this ransomware as fast as possible before it can have the opportunity to spread further and infect more machines. You should remove the ransomware and follow the instructions guide provided with easy-to-follow steps below.
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for .LCK virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .LCK virus and related malware 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:
Step 3: Clean any registries, created by .LCK virus 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 .LCK virus there. This can happen by following the steps underneath:
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: Boot Your PC In Safe Mode to isolate and remove .LCK virus
Step 5: Try to Restore Files Encrypted by .LCK virus.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and .LCK virus 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.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
.LCK virus-FAQ
What is .LCK virus Ransomware?
.LCK virus 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 algorithms 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.
What Does .LCK virus Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does .LCK virus Infect?
Via several ways..LCK virus Ransomware infects computers by being sent via phishing emails, 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.
Another way you may become a victim of .LCK virus 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 ..LCK virus files?
You can't without a decryptor. At this point, the ..LCK virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your ..LCK virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..LCK virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..LCK virus files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of .LCK virus Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate .LCK virus ransomware and then remove it without causing any additional harm to your important ..LCK virus files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can .LCK virus Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the .LCK virus Research
The content we publish on SensorsTechForum.com, this .LCK virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the .LCK virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
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