What Is Lmas?
Lmas is the name of a ransomware virus, whose main purpose is to get users to pay a hefty ransom fee if they want to use their files once again. The main goal of infections, like Lmas, is to get into your computer and encrypt your files, using the .lmas extension. The files are likely encrypted with AES encryption algorithm, which is very likely used by other viruses like this one because the Lmas Ransomware belongs to the STOP/DJVU family of infections.
In case you have become a victim of this nasty infection, we would strongly recommend that you read this article as it will help to learn more about this virus and how to cope with it adequately.

Lmas Summary
Name | Lmas also known as Trojan.GenericKD.35978248, Trojan.Win32.Stop.j!c, Trojan.Ransom.Stop, Trojanransom.Stop, A Variant Of Win32/Kryptik.HIMQ, Trojan-Ransom.Win32.Stop.qq |
File Extension | .lmas |
Type | Ransomware, Cryptovirus |
Short Description | The ransomware encrypts files on your computer system and demands ransom to be paid to allegedly recover them. |
Symptoms | This variant of STOP ransomware will encrypt your files by appending the .lmas extension to them. |
Ransom Demanding Note | _readme.txt |
Distribution Method | Spam Emails, Email Attachments, Torrent Files |
Detection Tool |
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Lmas Virus – More Information
Lmas virus is a STOP/DJVU ransomware variant, just like Reig, Ygkz and Plam viruses. It’s main purpose is to scramble your files and extort you into paying BitCoin to the cyber-criminals who are behind this threat.
The Lmas can infect your computer via two main means – e-mail and if you have downloaded some fake executable program online. If it infects your machine by e-mail, then the Lmas will likely use spam e-mail that pretends to be something important. The e-mail may carry an attached file that poses as a legitimate document but actually is the virus infection file. Such documents often pose as invoices and other forms of important files.
If the Lmas virus has been uploaded on some site and you happen to have downloaded it, it may pretend to be a crack, patch, keygen, portable app, or some other similar executable file that triggers the infection.
When the Lmas ransomware infects your computer, it may connect to a remote IP address and download its virus files. They could reside in the following Windows directories:
- %LocalLow%
- %Temp%
- %System%
- %system32%
- %Roaming%
- %ProgramData%
- %Windows%
- %Local%
- %AppData%
The Lmas also drops its _readme.txt ransom note file, that may appear with the following message directed towards victims:
When the virus is already active on your computer, it may assume administrator permissions and set up the following malicious activities without your knowledge:
- Connect to the command and control server of the criminals.
- Set up registry values in the Run and RunOnce Windows Registry sub-keys.
- Run with administrative permissions.
- Obtaining read and write privileges.
- Check if it has previously infected your machine.
.lmas Files
This virus may encrypt your files, using the .lmas file extension and the AES encryption algorithm. The main files targeted to be encrypted are the following:
- Video data.
- Image file types.
- Database files.
- Various archive types.
- Anything in USB or other external drive.
- Backed up files.
- Document files.
- Audio file formats.
Since this is a STOP/DJVU ransomware variant, there can be two ways to recover your files. After encryption, this ransomware releases either online or offline decrypt keys. If you key is an offline key, then you may be in luck, because these form of decryption keys can be easier to decode for free.

Remove Lmas and Try to Restore Files
To remove Lmas from your computer, we would recommend that you follow the removal instructions that are posted beneath this article. They are created to help you delete this virus either by yourself or automatically. According to security experts, the best way to delete this infection is to to it automatically by downloading and scanning your computer using professional anti-malware software. Such a program will detect and delete any traces of Lmas ransomware and protect your computer in the future for good.
To try and restore the files, encoded by this virus, we suggest that you try seeking a free Lmas decryptor online. One way is to check for a STOP Ransomware decryptor, created by researchers at Emsisoft. If this method fails, then we suggest that you try the alternative recovery steps we have posted below. They are not a 100% solution to restore all your files, but we have reported by victims that they were able to recover up to 80% of their data using these methods.
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.
How to Remove LMAS Virus from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove LMAS Virus





Step 2: Uninstall LMAS Virus 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:



Step 3: Clean any registries, created by LMAS 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 LMAS 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: Scan for LMAS Virus with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by LMAS Virus.
Ransomware infections and LMAS 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 top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
Get rid of LMAS Virus from Mac OS X.
Step 1: Uninstall LMAS Virus and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- 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 LMAS Virus 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:
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.
Step 3 (Optional): Try to Restore Files Encrypted by LMAS Virus.
Ransomware infections and LMAS 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 top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
LMAS Virus FAQ
What is LMAS Virus ransomware and how does it work?
LMAS 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 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 LMAS Virus ransomware infect my computer?
Via several ways.LMAS Virus 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 LMAS 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 .LMAS Virus files?
You can't. At this point the .LMAS Virus 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 .LMAS Virus files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by LMAS Virus 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 ".LMAS Virus" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .LMAS Virus 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 LMAS Virus 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 LMAS Virus ransomware and then remove it without causing any additional harm to your important .LMAS Virus files.
Also, keep in mind that viruses like LMAS Virus 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.
How to 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.