| Name | Trojan.LockScreen |
| Type | Ransomware, Trojan |
| Short Description | May encrypt important files and gives decryption keys upon paying ransom which is usually financial compensation. |
| Symptoms | Appearing of different objects in various user folders or the Desktop or on startup. Files encoded with unfamiliar extensions |
| Distribution Method | Spam mails. MiTM attacks, malicious redirects. |
| Detection tool | Download SpyHunter, to See If Your System Has Been Affected By Trojan.LockScreen |
| Data Recovery Tool | Windows 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. |
This type of trojan horse is connected closely with Police Association Ransomware, FBI Moneypak ransomware and ‘Votre ordinateur est bloque en raison du delit de la loi de la France ‘ ransomware infections. It is a mix of different Trojans and is created with the sole purpose of treating users for ransom and steal their money.
What Is Trojan.LockScreen?
The .LockScreen family of Trojans is familiar in the IT security world with the behavior of targeting PCs mainly in te European Union and displaying different ransomware messages with demands. Such Trojans threaten the average users with the pretext their files are encrypted. The only mean to decrypt them is if they pay ransom money, usually in bitcoin via an integrated application in the message, situated directly on the computer or by using the anonymous Tor browser. The messages may include claiming that the files have been encrypted by law enforcement (FBI, NSA, etc.) for security purposes.
In case you discover a threatening pop-up message or a message set as your wallpaper along with your homepage, it is a clear signal that this threat has infected you.
Trojan.Lockscreen – How Did I Become Infected?
There are many means of infection which the .Lockscreen family of Trojans may employ. The most successful may be email spoofing. This method conceals the email address of the attacker, changing it to a familiar address to the user along with an attached file. For example, if your boss’s email is yourboss@ifirepeopleforfun.com the attacker may assume this mail along with an attachment document that may carry a malicious virus that could install the ransomware on the computer by replicating executable files.
After it is on your computer, the Trojan may detect your IP address. Then it will begin to modify system settings that give it certain permissions to make changes in Windows. Some of those changes may include new entries in the Windows Registry Editor that may allow it to close any antivirus programs, Windows Firewall, and other defenses. This is why experts recommend to disconnect immediately from the internet and download an advanced anti-malware program from an uninfected device and then perform an offline scan to remove all associated files with Trojan.Lockscreen.
Other changes this threat may do is modify certain settings that may allow it to start up automatically with Windows. More so, the risk is believed to connect to a remote server that may belong to the attackers. This may give them additional permissions, which could be the deletion of user files at any point in time. Also it provides them with the ability to conduct attacks using the victim PCs credentials, making it look like it came from this machine. Cyber criminals have networks of such computers, called botnets or ‘zombie’ networks. This is less likely, but the Trojan may be modified to do it to perform a larger ransomware campaign simultaneously.
The ransom note may include various demands, mainly in bitcoins, ranging from 100 euros to much more. Some believe that the ransom amount is connected with the importance of the content of the files that are encrypted. The files are usually locked with either AES or RSA encryption algorithms that both take a lot of time to decrypt. However, experts advise never to comply with attackers’ requests since these files may be different files with the same name but only may look encrypted. Another reason not to comply is that there is no guarantee that you will receive your decrypting key after paying the ransom.
How To Remove Trojan.Lockscreen?
In case you are looking to remove Trojan.Lockscreen the first thing you should do is isolate the threat. To do this immediately disconnect your equipment from the internet and then follow the step-by-step guide below. It will assist you with booting your PC in an safe offline mode where you can scan and eliminate the threat with a particular powerful anti-malware program. It is not advisable to do it manually since you can crash your OS, and it is also not a guarantee that you will remove all files associated with Trojan.Lockscreen completely. An anti-malware program looks not only for files in its definitions, but also new objects that out of the ordinary and this is why you should download and install such software as fast as possible from a safe PC and use an USB stick to input it on your computer.
Pro tip: Make sure you either download an offline installer or boot in safe mode with networking so you can update the anti-malware program to its latest definitions for a better result. Also, make sure you extract the encrypted files so you can deal with them at a later state. For best results, you should follow the guide below.
Spy Hunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter
1. Start Your PC in Safe Mode to Remove Trojan.LockScreen.
For Windows XP, Vista, 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
For Windows 8, 8.1 and 10 systems:
Step 1: Open the Start Menu
Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: Click on Restart.
Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.
2. Remove Trojan.LockScreen automatically with Spy Hunter Malware – Removal Tool.
To clean your computer with the award-winning software Spy Hunter –
It is highly recommended to run a system scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.
Trojan.Lockscreen – How To Protect Your Files?
In case you have seen ransomware attacks, you might want to back up your data. To perform this action, you should guide yourself by the after mentioned manual.
Security engineers recommend that you back up your files immediately, preferably on an external memory carrier in order to be able to restore them. In order to protect yourself from Trojan.LockScreen (For Windows Users) please follow these simple instructions:
For Windows 7 and earlier:
1-Click on Windows Start Menu
2-Type Backup And Restore
3-Open it and click on Set Up Backup
4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by Trojan.LockScreen.
For Windows 8, 8.1 and 10:
1-Press Windows button + R
2-In the window type ‘filehistory’ and press Enter
3-A File History window will appear. Click on ‘Configure file history settings’
4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from Trojan.LockScreen.
Enabling Windows Defense Feature:
1- Press Windows button + R keys.
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
3- A System Properties windows should appear. In it choose System Protection.
5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from Trojan.LockScreen is on.
Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
2-Click on the Previous Versions tab and then mark the last version of the file.
3-Click on Apply and Ok and the file encrypted by Trojan.LockScreen should be restored.
Milena Dimitrova
An inspired writer and content manager who has been with SensorsTechForum since the project started. A professional with 10+ years of experience in creating engaging content. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim
Follow Me:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for Trojan.LockScreen with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall Trojan.LockScreen 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:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by Trojan.LockScreen 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 Trojan.LockScreen there. This can happen by following the steps underneath:
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.
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 Trojan.LockScreen
Step 5: Try to Restore Files Encrypted by Trojan.LockScreen.
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 Trojan.LockScreen 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.
Trojan.LockScreen-FAQ
What is Trojan.LockScreen Ransomware?
Trojan.LockScreen 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 Trojan.LockScreen 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 Trojan.LockScreen Infect?
Via several ways.Trojan.LockScreen 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 Trojan.LockScreen 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 .Trojan.LockScreen files?
You can't without a decryptor. At this point, the .Trojan.LockScreen 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 .Trojan.LockScreen files successfully, then do not despair, because this virus is still new.
Can I Restore ".Trojan.LockScreen" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Trojan.LockScreen 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 Trojan.LockScreen 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 Trojan.LockScreen ransomware and then remove it without causing any additional harm to your important .Trojan.LockScreen 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 Trojan.LockScreen 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 Trojan.LockScreen Research
The content we publish on SensorsTechForum.com, this Trojan.LockScreen 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 Trojan.LockScreen 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.
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.