Lalo Virus File (.lalo) Removal and Recovery PC

Written by Brendan Smith

Lalo Virus

Lalo is a DJVU family of ransomware-type infections1. The ransomware encrypts your private files (video, photos, documents). The infected files can be tracked by specific “.lalo” extension. So, you can’t open them at all.
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In this guide, I will try to help you remove Lalo virus without any payment. Also, I will assist you in decoding your encrypted files.

What is “Lalo”?

Lalo can be correctly identify as a ransomware-type infection.

Ransomware is a specific kind of virus that encrypted your documents and then forces you to pay for them. Note that DJVU (aka STOP) ransomware family was first revealed and discovered by virus analyst Michael Gillespie2.

Lalo is basically similar to other representatives of ransomware like: Mpaj, Jope, Mado. It encrypted all popular file types. Hence, you cannot work with the your documents or photos. Lalo adds its particular “.lalo” extension into all files. For example, the file “video.avi”, will be amended into “video.avi.lalo”. As soon as the encryption is accomplished, Lalo drops a specific text file “_readme.txt” and adds it into all folders that contain the modified files.

Here is a short info for the Lalo ransomware:
Ransomware family3DJVU/STOP4 ransomware
Ransomware note_readme.txt
RansomFrom $490 to $980 (in Bitcoins),
Detection5BScope.Trojan.Zbot.01439, Win32/GenKryptik.EIIA, Trojan:Win32/Racealer.MSN!MTB
SymptomsYour files (photos, videos, documents) have a .lalo extension and you can’t open it
Fix ToolSee If Your System Has Been Affected by .lalo file virus

This text asking payment is for restore files via decryption key:

Lalo virus message

The scary alert demanding from users to pay the ransom to decrypt the compromised data contains these frustrating warnings

The cryptography algorithm used by Lalo is AES-256. So, if your documents got encrypted with a specific decryption key, which is totally and there are no other copies. The sad reality is that it is impossible to restore the information without the unique key available.

In case if Lalo worked in online mode, it is impossible for you to gain access to the AES-256 key. It is stored on a distant server owned by the criminals who distribute the Lalo infection.

For receiving decryption key the payment should be $980. To obtain the payment details, the victims are encouraged by the message to contact the frauds by e-mail (, or via Telegram.

Do not pay for Lalo!

Please, try to use the available backups, or Decrypter tool

_readme.txt file also indicates that the computer owners must get in touch with the Lalo representatives during 72 hours starting from the moment of data where encrypted. On the condition of getting in touch within 72 hours, users will be granted a 50% rebate. Thus the ransom amount will be minimized down to $490). However, stay away from paying the ransom!

I certainly advise that you do not contact these crooks and do not pay. The one of the most real working solution to recover the lost data – just using the available backups, or use Decrypter tool.

And that’s really important. Fraudsters’ target is your wallet, and they will act in any possible way to force you to pay them. The common method of all ransomware distributors is putting on act that they are fair-playing and will really decrypt your files after the payment. They’d offer you to decrypt 1 or 2 of your files “to ensure you that we really have a decryptor”. But no one can force them to send you a decryption key after you paid them.

And usually they are not so kind. The common practice for croocks is to menace their victims with phrases like “if you don’t pay – we will delete all your files” or “your files will be encrypted forever, because no one can decrypt our ransomware”.

But the common action that is always done by ransomware distributors is database collecting&selling. E-mails of all victims who contacted them are added to the separate list, which will be then sold to another frauds, who will fill your mailbox with an advetiserments or so.

Some users who contacted ransomware distributors for some reason, showed us a ranting sent by fraudsters. Last ones told about encryption and demand of payment is a punishment for everyone who uses stolen/cracked software. Proper revengers, exactly, neither more nor less.

If you use a proprietary Windows backup method – be ready your backups to be disabled or even deleted by Lalo ransomware. The best way to avoid such possibility is to use any other backup-creating software.

Another action that is typically done by Lalo ransomware is hosts file editing. Usually, ransomware adds a Windows update server to this file, so, your Windows loses an ability to get an update. Updates can be very crucial for ransomware, because it usually changes system files and registry, and this changes could be reset to default by update.

All STOP/Djvu ransomware family, to which belongs Lalo ransomware, has a common bug. When it tries to encrypt a large file – about 1GB or so – it can just get stuck, and then switch to another file, leaving previous file unencrypted but with it’s specific .lalo extension. You can try to delete this extension from the name of the file, and then run it in a common way.

The peculiarity of all such viruses apply a similar set of actions for generating the unique decryption key to recover the ciphered data.

Thus, unless the ransomware is still under the stage of development or possesses some hard-to-track flaws, manually recovering the ciphered data is a thing you can’t perform. The only solution to prevent the loss of your valuable data is to regularly make backups of your crucial files.

Note that even if you do maintain such backups regularly, they ought to be put into a specific location without loitering, not being connected to your main workstation.

For instance, the backup may be kept on the USB flash drive or some alternative external hard drive storage. Optionally, you may refer to the help of online (cloud) information storage.

Needless to mention, when you maintain your backup data on your common device, it may be similarly ciphered as well as other data.

For this reason, locating the backup on your main computer is surely not a good idea.

How I was infected?

Lalo has a various methods to built into your system. But it doesn’t really matter what way had place in your case.

Lalo ransomware attack

Lalo ransomware attack following a successful phishing attempt.

Nevertheless, these are the common leaks through which it may be injected into your PC:

  • hidden installation along with other apps, especially the utilities that work as freeware or shareware;
  • dubious link in spam emails leading to the Lalo installer
  • online free hosting resources;
  • using illegal peer-to-peer (P2P) resources for downloading pirated software.

There were cases when the Lalo virus was disguised as some legitimate tool, for example, in the messages demanding to initiate some unwanted software or browser updates. This is typically the way how some online frauds aim to force you into installing the Lalo ransomware manually, by actually making you directly participate in this process.

One of the most often sources of Lalo ransomware is a shareware software. It could be both an old versions of different software or abandonware – software that is already not supported by it’s developer. The common examples of such software are old games or old versions of Photoshop and AutoCAD.

Surely, the bogus update alert will not indicate that you are going actually to inject the Lalo ransomware. This installation will be concealed under some alert mentioning that allegedly you should update Adobe Flash Player or some other dubious program whatsoever.

Of course, the cracked apps represent the damage too. Using P2P is both illegal and may result in the injection of serious malware, including the Lalo ransomware.

All ransomware has a very similar distribution model. Usually, it gets to user’s PC as a part of “bundle”, which contains PUPs and different malware. Malware could be really different – browser hijacker, adware, trojan-stealer or even backdoor. That’s the reason why I recommend you to make a full scan of your PC if you got any malware, and not to try cleaning some simple malware by yourself. It can be a sign of something much more dangerous inside.

In spite of distribution model, all ransomware is similar by it’s method of injection. For Lalo ransomware, one of the most popular thing is browser advetiserments, which are offering you to download “the last version of your browser”. You will be offered even if your browser is already up to date, and, of course, you wouldn’t get any update even if your browser really not updated. The file you will download after following this link contains Lalo ransomware, that will start the encryption as soon as you run this file.

To sum up, what can you do to avoid the injection of the Lalo ransomware into your device? Even though there is no 100% guarantee to prevent your PC from getting damaged, there are specific tips I want to give you to avoid the Lalo penetration. You must be cautious while installing free software today.

Make sure you always read what the installers offer in addition to the main free program. Stay away from opening suspicious e-mail attachments. Do not open files from the unknown addressees. Of course, your current security program must always be updated.

The malware does not speak openly about itself. It will not be mentioned in the list of your available programs. However, it will be masked under some malicious process running regularly in the background, starting from the moment when you launch your PC.

One characteristic that could be used to describe any ransomware is so-called delayed start. And Lalo ransomware is not an exclusion. It can be asleep inside of your PC for weeks, without any signs of its presence, until ransomware distributors won’t send a “start encryption” command.

Thus Lalo ransomware can reach your computer being “asleep”, you can occasionaly create a backup with ransomware inside. And that could be a bad joke when you’d try to use this backup to restore your files after Lalo ransomware awakening. As soon as your PC backs be online, ransomware will get an encryption command, again. So every time you are going to create a backup – perform a full scan of your PC to avoid possible malware injection in it.

Also, be very careful, if you are using OneDrive backups. It performs a backup in background, so you are not able to notice when been started or finished, and overwrites an already existing backup with a new one. In case of ransomware attack, OneDrive can start creating a backup, deleting “normal” files that could be used for PC restoration and replace them with encrypted ones by Lalo ransomware.

And after the encryption was started, you cant stop encryption process without using Windows emergency launch settings. Lalo ransomware adds it’s an entry in the RunOnce registry key, so, every time you launch your PC – the encryption will be continued. The only way to stop that is to launch Windows in special mode with command line support or “safe launch” mode. This launch types disable all software launch in spite of Windows proprietary programs. So, if you notice Lalo ransomware activity on your PC – you can try to stop encryption process, but can’t revert your files to original if they have already been encrypted.

Another action with a registry, that is usually done by Lalo ransomware, is adding it’s readme.txt to the RunOnce key. After such action, every time user launches his PC he will see such a mean “reminder” about his files are encrypted. Auto-launching of readme.txt can also be a notification about encryption finished if the user didn’t noticed the Lalo ransomware activity.

Every ransomware have its individual encryption behavior. Even more – a lot of ransomware has different versions that can differ with their encryption behavior. Talking about Lalo ransomware, it’s usually focused on last used files at first, then encrypts files that are located in one folder with “popular” files, then it encrypts randomly all files it can get.

The message by the Lalo ransomware states the following frustrating information:


Don't worry, you can return all your files!

All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.

What guarantees you have?

You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.

You can get and look video overview decrypt tool:

Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.

Please note that you'll never restore your data without payment.

Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.

To get this software you need write on our e-mail:

Reserve e-mail address to contact us:

Your personal ID:

The image below gives a clear vision of how the files with “.lalo” extension look like:

Lalo Virus - encrypted .lalo files

Example of encrypted .lalo files

How to remove Lalo virus?

In addition to encode a victim’s files, the Lalo infection has also started to install the Azorult Spyware on computer to steal account credentials, cryptocurrency wallets, desktop files, and more.
Reasons why I would recommend GridinSoft6

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes7.

Download Removal Tool.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your PC for Lalo infections and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

How to decrypt .lalo files?

Restore solution for big “.lalo files

Try removing .lalo extension on a few BIG files and opening them. Either the Lalo infection read and did not encrypt the file, or it bugged and did not add the filemarker. If your files are very large (2GB+), the latter is most likely. Please, let me know in comments if that will work for you.

The newest extensions released around the end of August 2019 after the criminals made changes. This includes Mpaj, Jope, Mado, etc.

As a result of the changes made by the criminals, STOPDecrypter is no longer supported. Tt has been removed and replaced with the Emsisoft Decryptor for STOP Djvu Ransomware developed by Emsisoft and Michael Gillespie.

You can download free decryption tool here: Decryptor for STOP Djvu.

Download and run decryption tool.

Start downloading the decryption tool.

Make sure to launch the decryption utility as an administrator. You need to agree with the license terms that will come up. For this purpose, click on the “Yes” button:

Emsisoft Decryptor - license terms

As soon as you accept the license terms, the main decryptor user interface comes up:

Emsisoft Decryptor - user interface

Select folders for decryption.

Based on the default settings, the decryptor will automatically populate the available locations in order to decrypt the currently available drives (the connected ones), including the network drives. Extra (optional) locations can be selected with the help of the “Add” button.

Decryptors normally suggest several options considering the specific malware family. The current possible options are presented in the Options tab and can be activated or deactivated there. You may locate a detailed list of the currently active Options below.

Click on the “Decrypt” button.

As soon as yo add all the desired locations for decryption into the list, click on the “Decrypt” button in order to initiate the decryption procedure.

Note that the main screen may turn you to a status view, letting you know of the active process and the decryption statistics of your data:

Emsisoft Decryptor - the decryption statistics

The decryptor will notify you as soon as the decryption procedure is completed. If you need the report for your personal papers, you can save it by choosing the “Save log” button. Note that it is also possible to copy it directly to your clipboard and to paste it into emails or forum messages if you need to do so.

Frequently Asked Questions

How can I open “.lalo” files?

No way. These files are encrypted by Lalo ransomware. The contents of .lalo files are not available until they are decrypted.

lalo files contain important information. How can I decrypt them urgently?

If your data remained in the .lalo files are very valuable, then most likely you made a backup copy.
If not, then you can try to restore them through the system function – Restore Point.
All other methods will require patience.

You have advised using GridinSoft Anti-Malware to remove Lalo. Does this mean that the program will delete my encrypted files?

Of course not. Your encrypted files do not pose a threat to the computer. What happened has already happened.

You need GridinSoft Anti-Malware to remove active system infections. The virus that encrypted your files is most likely still active and periodically
runs a test for the ability to encrypt even more files. Also, these viruses install keyloggers and backdoors for further malicious actions
(for example, theft of passwords, credit cards) often.

Decrytor did not decrypt all my files, or not all of them were decrypted. What should I do?

Have patience. You are infected with the new version of Lalo ransomware, and decryption keys have not yet been released. Follow the news on our website.
We will keep you posted on when new Lalo keys or new decryption programs appear.

What can I do right now?

If your computer is infected with ransomware, I recommend that you contact the following government fraud and scam sites to report this attack:

Video Guide

It’s my favorite video tutorial: How to use GridinSoft Anti-Malware and Emsisoft Decryptor for fix ransomware infections.

If the guide doesn’t help you to remove Lalo virus, please download the GridinSoft Anti-Malware that I recommended. Also, you can always ask me in the comments for getting help.

I need your help to share this article.

It is your turn to help other people. I have written this guide to help people like you. You can use the buttons below to share this on your favorite social media Facebook, Twitter, or Reddit.
Brendan Smith
Emsisoft Decryptor & GridinSoft Anti-Malware
User Review
4.67 (6 votes)
Comments Rating 0 (0 reviews)


  1. Ransomware-type infection:
  2. Twitter:
  3. My files are encrypted by ransomware, what should I do now?
  4. About DJVU (STOP) Ransomware.
  5. Encyclopedia of threats.
  6. GridinSoft Anti-Malware Review from HowToFix site:
  7. More information about GridinSoft products:

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About the author

Brendan Smith

Journalist, researcher, web content developer, grant proposal editor. Efficient and proficient on multiple platforms and in diverse media. Computer technology and security are my specialties.


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