DESYNC Ransomware

Also Known As: DESYNC virus
Distribution: Low
Damage level: Severe

DESYNC ransomware removal instructions

What is DESYNC?

The person who discovered DESYNC is Michael Gillespie. This is a ransomware-type program that is developed by cyber criminals who use it with a purpose to encrypt people's files (make them unusable) and then to demand to pay them a ransom. Like most malicious programs of this type, DESYNC adds its own extension to every encrypted file, in this case the ".DESYNC" extension. For example, it renames a file named "1.jpg" to "1.jpg.DESYNC" and so on. It also creates a ransom note that can be in a text file named "# HOW TO DECRYPT YOUR FILES #.txt".

"# HOW TO DECRYPT YOUR FILES #.txt" file is created with a purpose to explain DESYNC's victims what they must to do if they want to get back the access to their files/decrypt them. According to them there is only one way to do that and it is to buy a decryption tool from them. They warn their victims not to try to use tools provided by other parties because they either will be scammed or cause permanent data loss. In order to purchase the right tool it is required to contact DESYNC's developers via the email address and send them an email containing a appointed unique ID number. They also offer to decrypt one file for free as a guarantee that their decryption tool is capable of that. However, in order to decrypt all the other data, this ransomware's victims must to pay a ransom first. The price of decryption tool is unknown but it is very likely that it has to be bought using cryptocurrency such as Bitcoin. Note that very often cyber criminals ignore their victims even if their demands are met/ransom is paid: they do not provide the decryption tool or key and people just get scammed. Unfortunately, DESYNC's developers are the only ones who can provide a tool that is cable of decrypting this ransomware's encryption. The best solution (and a free one) in this case is to use an existing backup and to restore data from there.

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

DESYNC decrypt instructions

DESYNC is not the only ransomware-type program out there, there are plenty of them. Some examples of other malicious programs that operate very similarly are Frend, _Write_To_Emails_ and Cryptotes. Typically, ransomware-type programs are designed to encrypt data and to make ransom demands. Most common differences are the price of the decryption tool or key and the cryptography algorithm (symmetric or asymmetric) used to encrypt data. Unfortunately, cyber criminals usually design these computer infections to be 'uncrackable', in other words, people who have their computers infected with ransomware are forced to contact its developers. Contacting cyber criminals usually can be avoided only if these programs are not fully developed, has bugs/flaws. That is why we recommend to create data backups regularly and to keep them in some remote server or unplugged storage device.

How did ransomware infect my computer?

The exact method that is being used to proliferate DESYNC is unknown, however, most cyber criminals distribute ransomware through spam (email) campaigns, Trojans (malicious programs), fake software updaters, software cracking tools and various unreliable/untrustworthy software download channels. When using spam campaigns, cyber criminals send emails that contain malicious attachments or web links that lead to them. The main goal is to trick recipients into opening them. Some examples of files that are being used to cause computer infections: Microsoft Office documents, PDF files, archive files (such as RAR, ZIP) and executable files (.exe). Once opened/executed, these malicious files trigger download and installation of some particular virus. Trojans are malicious programs are designed to spread other programs of this type. In other words, they cause chain infections. Cyber criminals employ fake (unofficial) software updaters as tools to download and install malware instead of the promised updates or software fixes. They might be also used to exploit bugs, flaws of installed outdated software. Software cracking tools supposed to activate paid software (or operating system) for free. However, there are cases where cyber criminals use these tools to infect computers with ransomware or other viruses. Unreliable download sources such as P2P (peer-to-peer) networks, free file hosting websites, freeware download websites (and other sources of this kind) can be used by cyber criminals too. They use them to present malicious files (usually executables) as legitimate, by downloading (and installing) them users cause computer infections by themselves.

How to protect yourself from ransomware infections?

To keep computers safe from being infected with ransomware or other infections, we recommend to be careful while downloading, installing and updating any software. We advise to be careful when dealing with various attachments (or web links) presented in received emails: if they are presented in emails received from unknown and/or suspicious addresses, especially in cases where the email subject (its context) is irrelevant - do not open them. Always use official and trustworthy tools (websites) to download any software. Avoid using unofficial websites, various third party downloaders, installers and other tools of this kind as well. Note that to use software cracking tools is illegal. Besides, they often are the reason behind various computer infections. Update your software using implemented functions or tools provided by the official software developers only. Having a reputable anti-virus or/and anti-spyware software installed (and enabled) can be really helpful too: software of this type is capable of detecting (and removing) various computer infections before they can do any damage to the system. If your computer is already infected with DESYNC, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in DESYNC ransomware's text file "# HOW TO DECRYPT YOUR FILES #.txt":


All your files are encrypted on your network using a powerful and highly sophisticated encryption algorithm.
No way to recover your files without buy special decryption service that we have made for you!


If you are looking for internet. You will see nothing except scam websites want you to install their software and waste your money for them.
Any change in encrypted files completely breaks your file for every.


Will free guarantee our decryption service, we have to offer you 'ONE FREE FILE DECRYPTION'
You can send us one of any of your encrypted files in the first contact with us.


But, if you want to recover all your files need to make payment.


Now go to your email and send your 'PERSONAL IDENTIFIER' to following e-mail address:


Don't forget to send e-mail us only with your work e-mail address, else we never reply you.



Screenshot of files encrypted by DESYNC (".DESYNC" extension):

Files encrypted by DESYNC

DESYNC ransomware removal:

Instant automatic removal of DESYNC 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 DESYNC 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 DESYNC 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 DESYNC 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 DESYNC 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 DESYNC 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 DESYNC, 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 DESYNC ransomware.

Note that Windows 10 Fall Creators Update includes "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default this feature automatically protects files stored in 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�s more information on how to get this update and add 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 DESYNC ransomware: