Cyber Police Ransomware

Also Known As: Cyber Police virus
Distribution: Low
Damage level: Severe

Cyber Police ransomware removal instructions

What is Cyber Police?

First discovered by malware security researcher, Lawrence Abrams, and Based on an open-source ransomware project called Hidden Tear, Cyber Police is a virus that stealthily infiltrates systems and encrypts files using AES cryptography. During encryption, Cyber Police adds the ".locked" extension to the name of each encrypted file. For example "sample.jpg" is renamed to "sample.jpg.locked". Following successful encryption, Cyber Police changes the desktop wallpaper and places the "READ_IT.txt" file on the desktop.

The desktop wallpaper and text file contain an identical message informing users of the current situation and instructing them what to do next. The message states that the system has been blocked due to use of unlicensed software and that files have been encrypted. It is also stated that the files can only be restored using a unique decryption key. Unfortunately, this information is accurate. As mentioned above, Cyber Police employs AES cryptography - an algorithm that generates unique key (used to encrypt and decrypt files) for each victim. Decryption without this key is impossible. Therefore, criminals store it on a remote server and make ransom demands of $100 in Bitcoins to obtain it. Cyber criminals cannot be trusted. Research shows that these people often ignore victims, once ransoms are paid. Therefore, even if the victim decides to support them by paying a ransom, there is no guarantee that the files will ever be restored. In this case, victims will probably be scammed. Therefore, we strongly advise you to ignore all requests to contact these people or pay any ransom. Unfortunately, there are no tools capable of cracking the AES encryption algorithm and restoring files compromised by Cyber Police ransomware. Therefore, the only solution is to restore files/system from a backup.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

Cyber Police decrypt instructions

Cyber Police is virtually identical to Jhash, SIGMA, Relock, GIBON, and dozens of other ransomware-type viruses. Although, these viruses are developed by different people, they have identical behavior. All encrypt data and makes ransom demands. Research shows that the only major differences are size of ransom and type of encryption algorithm used, however, most of these viruses employ symmetric/asymmetric algorithms (e.g., RSA, AES, etc.) that generate unique decryption keys. Therefore, restoring files manually without involvement of developers (contacting these people is not recommended) is impossible, unless the malware is not fully developed or has certain bugs/flaws (e.g., stores the key locally, it is hard-coded, etc.) Ransomware-type viruses such as Cyber Police are one of the main reasons for keeping regular data backups, however, note that backup files must be stored on an external/unplugged hard drive or a remote server, otherwise they will also be encrypted.

How did ransomware infect my computer?

Ransomware-type viruses are proliferated in various ways, however, the most common five are: 1) trojans; 2) fake software update tools; 3) peer-to-peer [P2P] torrents; 4) third party software distribution sources, and; 5) spam emails. Trojans are simple - they merely open "backdoors" for malware to infiltrate the system. Fake software updates are designed infect the system by exploiting outdated software bugs/flaws. P2P networks (torrents, eMule, etc.) and other unofficial software download sources (freeware download websites, free file hosting websites, etc.) often present malicious executables as legitimate software, thereby tricking users into downloading and installing viruses. Spam emails often contain malicious attachments (such as JavaScript files, MS Office documents, and so on) that, once opened, download and install malware. Essentially, the main reasons for computer infections are poor knowledge and careless behavior.

Threat Summary:
NameCyber Police virus
Threat TypeRansomware, Crypto Virus, Files locker
SymptomsCan't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Distribution methodsInfected email attachments (macros), torrent websites, malicious ads.
DamageAll files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.

To eliminate Cyber Police virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

The key to computer safety is caution - pay close attention when browsing the Internet. Keep installed applications updated and use a legitimate anti-virus/anti-spyware suite, however, as mentioned above, ransomware-type viruses are proliferated using fake updaters. Therefore, software should be updated using an implemented "Update" feature or a tool downloaded from the official website. In addition, your programs should also be downloaded from official sources only and, preferably, using a direct download link. Third party download/installation tools often include malicious apps. Therefore, never use them. Do not open attachments received from suspicious email addresses. In fact, these emails should be deleted immediately, without reading.

Screenshot of Cyber Police ransomware desktop wallpaper:

Cyber Police wallpaper

Message presented within Cyber Police ransomware desktop wallpaper and text file ("READ_IT.txt"):


Your documents, photos, databases and other important files have been encrypted
with strong encryption and unique key, generated for this computer. The private decryption
key is stored on a secret internet server and nobody can decrypt your files until you will
pay fine and then obtain the private key.


HOW TO PAY: Go to and
buy Bitcoins worth of 100$ with your favorite payment method. Then through your account, send
Bitcoins worth about 100$ to our Bitcoin address: 1NiGZiFPRqGdxB7ZpbcVsRUVqLJ2SjLsuM and indicate
your email to receive the decryption key via your email

Screenshot of files encrypted by Cyber Police ransomware (".locked" extension):

Files encrypted by Cyber Police

Cyber Police ransomware removal:

Instant automatic removal of Cyber Police virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Cyber Police virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the Cyber Police virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the Cyber Police ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Cyber Police ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of Cyber Police are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by Cyber Police, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as Cyber Police ransomware.

Note that the Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove Cyber Police ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Cyber Police virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Cyber Police virus on your mobile device.
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Platform: Windows

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