How to remove Lyli virus. Decrypt .lyli files. Lyli File Recovery Guide.

What is Lyli file extension

.Lyli file extension is an identifier used by the Lyli ransomware to mark files that have been encrypted. Lyli ransomware is a new malware belonging to STOP (Djvu) ransomware family. It encrypts the victim’s files, changes the names of the affected files, adding .lyli extension to their name, creates a file called “_readme.txt” with a ransom demand message. After the files are encrypted, their contents become inaccessible. The Lyli ransomware authors demand to pay the ransom in exchange for the key and the decryptor necessary for decrypting the files. Fortunately, there is a free Lyli File Decrypt Tool and several other alternative methods that can help the ransomware victims to decrypt .lyli files and restore the encrypted files to their original state.

What is Lyli ransomware

Lyli ransomware is the 254th variant of the STOP (Djvu) ransomware. It is created to encrypt files located on the victim’s computer, and then extort money to decrypt them. Lyli virus sneaks into the system without any visible symptoms, which is why users notice that their computer is infected too late, when the files are already encrypted.

Typically, ransomware like Lyli can infect a computer when a user runs and installs the infected program as well as cracked games, freeware, key generators and other similar software. Upon execution, the ransomware creates a directory in the Windows system directory, copies itself to this directory, changes some OS settings, and also collects information about the infected computer. After that, Lyli virus tries to connect to its command server. If this succeeds, the ransomware sends data about the infected computer to the server, and from it receives a key (so-called ‘online key’) necessary for file encryption. If the connection to its command server has not been established, then the ransomware uses a fixed key (so-called ‘offline key’).

The main difference between an online key and an offline key is that the online key is in the hands of criminals and cannot be determined. The offline key is fixed and can be determined by security researchers. This gives hope that victims of Lyli virus will be able to decrypt files without paying ransom.

What is Lyli file

A file with extension ‘.lyli’ is a file that has been encrypted by the Lyli ransomware and therefore the contents of this file are locked. Each file that has been affected by the virus is renamed in such a way that the ‘.lyli’ extension is appended to its old name on the right. This means the following, if the file was named ‘document.docx’, then after it is encrypted, it will be called ‘document.docx.lyli’. Each file on the victim’s computer becomes the target of Lyli virus. No matter where the file is located, on the internal drive or network storage, this file will be encrypted. The virus only does not encrypt files in the OS system directories, files with the extension .dll, .lnk, .bat, ini, .sys and files named ‘_readme.txt’. Thus, the following types of files can be encrypted:

.xlgc, .ltx, .mrwref, .sql, .wp5, .srf, .wbmp, .ppt, .dmp, .ibank, .sis, .webdoc, .docx, .cfr, .ntl, .map, .upk, .ff, .p12, .rar, .xmind, .wn, .pef, .dxg, .xls, .x3f, .zi, .bay, .bkp, .cas, .d3dbsp, .m3u, .itl, .xdb, .xx, .3dm, .psd, .lrf, .wire, .kdb, .m2, .webp, .raw, .qic, .pdd, .wbd, .r3d, .pdf, .bc7, .odb, .crt, .gdb, .cdr, .apk, .pfx, .ztmp, .fpk, .lbf, .asset, .yal, .wpw, .ai, .itdb, .xlsm, .desc, .ptx, .xyp, .sidn, .blob, .y, .xlsx, .sum, .rw2, .zdc, .tor, .zw, .jpg, .odc, .wbk, .sb, .rim, .iwi, .wotreplay, .fsh, .bik, .wm, .mddata, .xwp, .wgz, .flv, .vtf, .wpl, .orf, .xmmap, .x, .gho, .vdf, .litemod, .vpp_pc, .jpe, .docm, .wpd, .ysp, .vcf, .bc6, .rwl, .png, .wbm, .dazip, wallet, .dbf, .wdp, .zdb, .x3f, .2bp, .wp4, .hplg, .dng, .z3d, .wma, .xbplate, .jpeg, .vfs0, .xy3, .wpd, .rb, .pak, .wps, .mef, .zif, .rtf, .py, .xlsx, .tax, .kdc, .3fr, .z, .rofl, .xll, .1st, .arw, .m4a, .fos, .nrw, .wmo, .xbdoc, .re4, .yml, .csv, .wpb, .ncf, .kf, .wpa, .wbz, .sr2, .xyw, .pptx, .xxx, .bar, .t13, .wpe, .hkdb, .wpg, .big, .sidd, .ods, .mpqge, .xf, .svg, .xld, .qdf, .avi, .itm, .sav, .eps, .mdb, .pptm, .cr2, .syncdb, .mlx, .3ds, .7z, .wma, .0, .xlsb, .der, .dwg, .xlsm, .snx, .p7c, .wb2, .t12, .xpm, .pem, .rgss3a

As we said, Lyli file is an encrypted file. To decrypt it, you must use the key and the decryptor. This is reported by the authors of Lyli virus, in a message that they leave on the infected computer. This message is in a file called ‘_readme.txt’. The criminals place such a file in every directory where there is at least one encrypted file. An example of the contents of this file is given below.

The contents of this file are a ransom demand message. Criminals report that all files on the computer are encrypted, and only the key and decryptor can decrypt these files and restore access to their contents. Attackers demand a ransom of $980 in exchange for a key and a decryptor. If the victim is ready to pay the ransom quickly, within 72 hours, the size of the ransom is halved to $490. The authors of the virus offer to decrypt one Lyli file for free and thus prove the possibility that the files can be decrypted.

The full contents of the file ‘_readme.txt’:

ATTENTION!

Don’t worry, you can return all your files!
All your files like pictures, 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:
https://we.tl/t-0aRYnJG9c1
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:
helpmanager@mail.ch

Reserve e-mail address to contact us:
restoremanager@airmail.cc

Your personal ID:
0254Wdasdedeac7Sn2GuDNdN1CbhZnvk664iBmYwX1uD4u0Xt1

Threat Summary

Name	Lyli ransomware, Lyli File Virus
Type	File locker, Filecoder, Crypto malware, Crypto virus, Ransomware
Encrypted files extension	.lyli
Ransom note	_readme.txt
Contact	helpmanager@mail.ch, restoremanager@airmail.cc
Ransom amount	$490/$980 in Bitcoins
Detection Names	Trojan.Ransom.Stop, Win32:RansomX-gen [Ransom], W32.KepiAgentNTQ.Trojan, Trojan.DownLoader34.51584, Trojan.GenericKDZ.70237 (B), Trojan.Stop.fr, Win32/Trojan.Ransom.2fe, TrojanRansom.Stop, Ransom_Stop.R002C0PIQ20
Symptoms	Cannot open files stored on the computer. Your photos, documents and music have odd extension appended at the end of the file name. Files called like ‘_readme.txt’, ‘#_README_#’, ‘_DECRYPT_’ or ‘recover’ in each folder with at least one encrypted file.. Your desktop is locked with a message about How to pay to unlock your system.
Distribution methods	Email attachments. Drive-by downloading (when a user unknowingly visits an infected website and then malicious software is installed without the user’s knowledge). Social media posts (they can be used to trick users to download malicious software with a built-in ransomware downloader or click a malicious link). Malicious webpages.
Removal	Lyli ransomware removal guide
Decryption	Lyli File Decrypt Tool
Recovery	Lyli File Recovery

How to remove Lyli ransomware, Recover, Decrypt .lyli files

Security researchers confirm that files with .lyli extension are encrypted and to decrypt them you need to use a key and special software – decryptor. Fortunately, there is a free decryptor. Lyli File Decrypt Tool is a program that can help everyone to decrypt .lyli files completely free. Unfortunately, this decryptor is limited in that it can only decrypt files encrypted with an offline key, files encrypted with an online key cannot yet be decrypted. The reason for this is that only the Lyli creators have the online key and this key cannot be determined or cracked. In addition to using the Lyli File Decrypt Tool, there are several other ways to restore the content of encrypted files.

The instructions below detail how to remove Lyli ransomware, decrypt .lyli files, and also how to recover encrypted files if the Lyli File Decrypt Tool could not decrypt them. Read the entire manual carefully. To make it easier for you to follow the instructions, we recommend that you print it or open it on your smartphone.

1. How to remove Lyli ransomware virus
2. How to decrypt .lyli files
3. How to restore .lyli files
4. How to protect your PC system from Lyli ransomware

How to remove Lyli ransomware virus

You need to remove the Lyli ransomware virus and its autostart entries before proceeding to decrypt or restore encrypted files. This must be done since otherwise the ransomware may re-encrypt the restored files. You can stop the ransomware from working, as it is not difficult to do. Another option is to perform a full system scan using free malware removal tools capable of detecting and removing ransomware infection.

It is very important to scan the computer for malware, as security researchers found that spyware could be installed on the infected computer along with the Lyli ransomware. Spyware is a very dangerous security threat as it is designed to steal the user’s personal information such as passwords, logins, contact details, etc. If you have any difficulty removing the Lyli virus, then let us know in the comments, we will try to help you.

To remove Lyli ransomware, follow the steps below:

1. Kill the Lyli ransomware process
2. Disable the Lyli ransomware Start-Up
3. Delete the Lyli ransomware Task
4. Delete the Lyli ransomware File
5. Scan computer for malware

Kill the Lyli ransomware process

Press CTRL, ALT, DEL keys together.

Click Task Manager. Select the “Processes” tab, look for something suspicious that is the Lyli ransomware then right-click it and select “End Task” or “End Process” option. If your Task Manager does not open or the Windows reports “Task manager has been disabled by your administrator”, then follow the guide: How to Fix Task manager has been disabled by your administrator.

It is not difficult to detect a process related to the Lyli ransomware. When looking for a malicious process, pay attention to the process icon and its name. Most often, this ransomware has a process name in the following format: 4-characters.tmp.exe or 4-characters.exe. For example: 7533.tmp.exe, A4b1.exe, CD15.tmp.exe, 19b2.exe. If you do not find a process with a similar name in the list of processes, then most likely the Lyli ransomware has finished working. But keep in mind, if you do not remove the ransomware autostart entries, as demonstrated below, and do not delete its file, then after a while it may start again, and if it finds unencrypted files, immediately encrypt them.

Disable the Lyli ransomware Start-Up

Select the “Start-Up” tab, look for something similar to the one shown in the example below, right click to it and select Disable.

Close Task Manager.

Delete the Lyli ransomware Task

Type “Task Scheduler” in the search bar. Click Task Scheduler app in the search results. Click “Task Scheduler Library” in the left panel. On the right panel, right-click to “Time Trigger Task” and select Delete.

Close Task Scheduler.

Delete the Lyli ransomware File

Run Task Manager and select the “Start-Up” tab. Right click to the Lyli ransomware Start-Up entry and select Open File Location as shown below.

A directory containing one file will open in front of you, this file is the Lyli ransomware. It needs to be removed. If you try to delete it immediately, then you will not succeed, since this file is protected from deletion.

To delete this file, you need to do the following. Right-click on the file, select Properties. In the window that opens, select Security tab. Next, click the Advanced button below. A window will open as shown in the following example.

Click Disable inheritance. In the Block inheritance dialog box that opens, select the first item (Convert inherited permissions…) as shown below.

In the Permission entries list, select “Deny Everyone”, click Remove button and then OK. Close the file properties window. You should now be able to remove the Lyli ransomware File. Right-click on the file and select Delete.

Scan computer for malware

Zemana AntiMalware can detect all kinds of malicious software, including ransomware, as well as a variety of Trojans, viruses and rootkits. After the detection of the Lyli crypto virus, you can easily and quickly uninstall it.

1. First, visit the page linked below, then press the ‘Download’ button in order to download the latest version of Zemana Anti-Malware.
   
   

   Zemana AntiMalware
   164032 downloads
   Author: Zemana Ltd
   Category: Security tools
   Update: July 16, 2019
   
2. When the downloading process is finished, close all software and windows on your PC system. Open a file location. Double-click on the icon that’s named Zemana.AntiMalware.Setup.
3. Further, click Next button and follow the prompts.
4. Once installation is complete, click the “Scan” button . Zemana AntiMalware program will scan through the whole PC for the Lyli ransomware related folders,files and registry keys. While the utility is scanning, you can see count of objects and files has already scanned.
5. Once Zemana Anti-Malware (ZAM) has finished scanning, you can check all threats detected on your personal computer. Next, you need to press “Next”. Once the clean-up is complete, you can be prompted to restart your computer.

In order to be 100% sure that the computer no longer has the Lyli virus, we recommend using the Kaspersky virus removal tool (KVRT). This tool is free and easy to use. It can scan and uninstall crypto malware, spyware, PUPs, worms, trojans, adware software and other malware. KVRT is powerful enough to find and remove malicious registry entries and files that are hidden on the personal computer.

Download Kaspersky virus removal tool (KVRT) on your Windows Desktop by clicking on the link below.

Once the download is complete, double-click on the Kaspersky virus removal tool icon. Once initialization procedure is finished, you’ll see the Kaspersky virus removal tool screen as displayed below.

Click Change Parameters and set a check near all your drives. Press OK to close the Parameters window. Next press Start scan button to perform a system scan for the Lyli crypto virus and other trojans and malicious programs. This procedure may take quite a while, so please be patient. While the KVRT is scanning, you can see count of objects it has identified either as being malware.

After Kaspersky virus removal tool has completed scanning, it will open a list of found items as shown in the figure below.

Review the scan results and then press on Continue to begin a cleaning procedure.

How to decrypt .lyli files

All files with .lyli extension are encrypted and the only way to access their contents is to decrypt them. To decrypt .lyli files, you need to use a unique key and decryptor. As we said above, Emsisoft company was able to create a decryptor and found a way in some cases to determine the key that was used to encrypt the files. It can help the ransomware victims to decrypt encrypted files for free.

To decrypt .lyli files, use Lyli File Decrypt Tool

• Download Lyli File Decrypt Tool from the following link.
  STOP Djvu decryptor
• Scroll down to ‘New Djvu ransomware’ section.
• Click the download link and save the decrypt_STOPDjvu.exe file to your desktop.
• Run decrypt_STOPDjvu.exe, read the license terms and instructions.
• On the ‘Decryptor’ tab, using the ‘Add a folder’ button, add the directory or disk where the encrypted files are located.
• Click the ‘Decrypt’ button.

Lyli File Decrypt Tool is a free software that can decrypt files encrypted with an offline key. Unfortunately, files encrypted with an online key cannot yet be decrypted. The online key is unique to each infected computer, and at the moment there is no way to obtain this key. Of course, criminals have this key, but we do not think that paying a ransom is a way to decrypt .lyli files. In the case when the files are encrypted with an online key, there is a chance to restore the encrypted files using alternative methods, which are described below.

How to find out which key was used to encrypt files

Below we show two ways to help you determine what type of key was used to encrypt the files. This is very important, since the type of key determines whether it is possible to decrypt .lyli files for free. We recommend using the second method, as it is more accurate.

Find out the type of key using ‘_readme.txt’ file

• Open the ransom demand message (‘_readme.txt’ file).
• Scroll down to the end of the file.
• There you will see a line with the text ‘Your personal ID’.
• Below is a line of characters, this is your personal id.

Find out the type of key using ‘PersonalID.txt’ file

• Open disk C.
• Open directory ‘SystemID’.
• Open file named ‘PersonalID.txt’. This file lists ‘Personal ID’s that match the keys that the virus used to encrypt files.

The ‘Personal ID’ is not a key, it is an identifier related to a key that was used to encrypt files. If the ID ends with ‘t1’, then the files are encrypted with an offline key. If the ID does not end with ‘t1’, Lyli ransomware virus used an online key. If you could not figure out how to determine which key was used to encrypt files, then we can help. Just write a request here or in the comments below.

Lyli File Decrypt Tool : “No key for New Variant online ID”

If, when you try to decrypt .lyli files, Lyli File Decrypt Tool reports:

No key for New Variant online ID: *
Notice: this ID appears to be an online ID, decryption is impossible

It means that your files are encrypted with an ‘online key’ and their decryption is impossible, since only the Lyli authors have the key necessary for decryption. In this case, you need to use alternative methods listed below to restore the contents of encrypted files.

Lyli File Decrypt Tool : “No key for New Variant offline ID”

If, during decryption of .lyli files, Lyli File Decrypt Tool reports:

No key for New Variant offline ID: *t1
Notice: this ID appears be an offline ID, decryption MAY be possible in the future.

It means the following: your files are encrypted with an ‘offline key’, but the key itself has not yet been obtained by security researchers, in this case, you need to be patient and wait a while, in addition, you can also use alternative ways for recovering encrypted data.

If for some reason you were unable to decrypt the encrypted files, then We recommend to follow the news on our Facebook or YouTube channels. So you ‘ll know right away that it ‘s possible to decrypt .lyli files.

This video step-by-step guide will demonstrate How to remove Lyli ransomware, Decrypt/Recover .lyli files.

How to restore .lyli files

If your files were encrypted with .lyli extension, then there is a chance that you can recover the files without decryption. We recommend using PhotoRec and ShadowExplorer that are designed to find and recover lost and deleted data. Mostly such programs are paid, but these tools can restore your files for free. Each of these programs has already helped many victims to recover encrypted files in what would seem to be the most hopeless cases. We want to remind you that before you try to recover files, you need to scan your computer for ransomware using free malware removal tools. It is very important to find the Lyli virus and completely remove it.

Use shadow copies to restore .lyli files

Modern versions of the Windows OS have one very useful feature. The Windows automatically makes copies of the files you use. These copies are called ‘Shadow Volume Copies’ and are not directly visible to the user. ShadowExplorer will allow you to get easy access to these files, and thus restore the original state of encrypted files. Of course, not everything is so simple, unfortunately very often ransomware deletes these copies, thus preventing the simple recovery of encrypted files. But in some cases, copies of the files remain and allow for quick file recovery. Therefore, our opinion, you need to try this method.

Installing the ShadowExplorer is simple. First you will need to download ShadowExplorer on your personal computer from the following link.

Once downloading is complete, open a directory in which you saved it. Right click to ShadowExplorer-0.9-portable and select Extract all. Follow the prompts. Next please open the ShadowExplorerPortable folder as displayed on the screen below.

Start the ShadowExplorer utility and then choose the disk (1) and the date (2) that you wish to recover the shadow copy of file(s) encrypted by the Lyli crypto malware as displayed in the figure below.

Now navigate to the file or folder that you want to recover. When ready right-click on it and click ‘Export’ button as shown on the image below.

This video step-by-step guide will demonstrate How to recover encrypted files using Shadow Explorer.

Recover .lyli files with PhotoRec

There is another very good way to recover .lyli files – use a tool that finds and restores deleted files. We recommend using PhotoRec. This is one of the few programs that allows you to do this for free. The reason that allows you to recover encrypted files using this method is simple – when you or any program, including the ransomware, deletes a file, this file is not deleted, the Windows OS marks it as deleted and hides it. PhotoRec finds such deleted files and restores them. Thus, at the output, you get files in an unencrypted state. The only thing I want to draw your attention to is that the less you used your computer after ransomware infection, the higher your chance of recovering encrypted files.

Download PhotoRec by clicking on the following link.

After the download is finished, open a directory in which you saved it. Right click to testdisk-7.0.win and select Extract all. Follow the prompts. Next please open the testdisk-7.0 folder like below.

Double click on qphotorec_win to run PhotoRec for Microsoft Windows. It will show a screen as on the image below.

Choose a drive to recover as displayed in the following example.

You will see a list of available partitions. Select a partition that holds encrypted photos, documents and music as displayed on the screen below.

Press File Formats button and select file types to restore. You can to enable or disable the recovery of certain file types. When this is complete, click OK button.

Next, click Browse button to select where restored personal files should be written, then press Search. We strongly recommend that you save the recovered files to an external drive.

Count of restored files is updated in real time. All restored files are written in a folder that you have chosen on the previous step. You can to access the files even if the restore process is not finished.

When the restore is complete, click on Quit button. Next, open the directory where recovered documents, photos and music are stored. You will see a contents as shown in the figure below.

All restored files are written in recup_dir.1, recup_dir.2 … sub-directories. If you are searching for a specific file, then you can to sort your restored files by extension and/or date/time.

This video step-by-step guide will demonstrate How to recover encrypted files using PhotoRec.

How to protect your PC system from Lyli ransomware

Most antivirus software already have built-in protection system against the crypto malware. Therefore, if your personal computer does not have an antivirus program, make sure you install it. As an extra protection, run the HitmanPro.Alert. HitmanPro.Alert is a small security utility. It can check the system integrity and alerts you when critical system functions are affected by malware. HitmanPro.Alert can detect, remove, and reverse ransomware effects.

Visit the following page to download the latest version of HitmanPro Alert for Windows. Save it directly to your Microsoft Windows Desktop.

Once the download is done, open the file location. You will see an icon like below.

Double click the HitmanPro Alert desktop icon. When the utility is started, you’ll be displayed a window where you can select a level of protection, like below.

Now click the Install button to activate the protection.

Finish words

This guide was created to help all victims of Lyli ransomware virus. We tried to give answers to the following questions: how to remove ransomware; how to decrypt .lyli files; how to recover files, if Lyli File Decrypt Tool does not help; what is an online key and what is an offline key. We hope that the information presented in this manual has helped you.

If you have questions, then write to us, leaving a comment below. If you need more help with Lyli related issues, go to here.