How to remove .kupidon file virus and decrypt .kupidon files

Delete .kupidon file virus from PC

.kupidon file virus is dangerous ransomware threat belongs to Dharma ransomware family. This vicious file encryption virus has been programmed by cyber criminals in order to extort money from victims. Once installed, it will encrypt all your important files and ask you to pay money in order to restore your important data as well as files. During encryption, all files get unique extension .kupidon to their filenames and become unusable. Ransom note in the form of “!KUPIDON_DECRYPT.TXT” appear soon after the encryption process is completed.

Threat summary

Name: .kupidon file virus

Type: Ransomware, Cryptovirus

Extension: .kupidon


Ransom Amount: 300 USD

Description: .kupidon file virus encrypts your files by adding .kupidon extension to file names and demands a ransom to give decryption key

 Symptoms: You will not be able to access any files on your system. You will find Ransom note in each folder demanding money.

 Distribution : Spam Emails, Email Attachments, bundled freeware, porn or torrent sites, pirated software and many more.

Removal: Both manual as well as automatic guide has been provided below under this article.

Depth analysis: .kupidon file virus

The created ransom note contains information about the file encryption and instructions to how to possibly recover the encrypted files and provide ransom payment details. To restore it, users are encouraged to purchase decryption key from the cyber criminals who are behind this attack. The price of these tools is 300 USD in Bitcoin cryptocurrency. Further, users are instructed to install the Tor browser and open a website of which is provided in the message. .kupidon file virus threatens the victims that if you don’t pay money soon then you will permanently lose the access of all your important files.

Further, the developers claim to provide the decryption tool once the payment is done. They are ready to provide a proof that the decryption tool is really working and for this they offer user to attach 1 encrypted file with the email they write to them. Nevertheless, you should never trust on the cyber criminals who are behind this infection. In one way or another, they will never provide you decryption tool once payment is done. The safe way is to remove .kupidon file virus and restore the files using backup if available. On the other hand, the other option  is to use data recovery tool.

How did ransomware intrude?

Ransomware intrude through scam email campaigns, fake software updater, unofficial software activation tools and untrustworthy downloading channels. Scam campaigns are used to send spam emails with malicious attachment on them. They are seemed to be coming from legitimate companies when provide them the impression legit and trustworthy. Short message are designed to convince user into clicking on the attachments. Once done, malicious payloads attaches on them and run malicious scripts that are designed to cause computer infection.

Trojans are malicious apps that download/install other malware. Fake software updater exploit bugs/flaws of installed apps or directly download malware instead of providing updates. Similar way, untrustworthy software activation tools infect computer by supposedly bypassing activation key for paid software. Finally, untrustworthy software download sources like third party installer, unofficial pages, peer to peer sharing files and others spread malware by presenting it as legit software.

Remove .kupidon file virus

Manual malware removal threat might be lengthy and complicated process. It requires advanced IT knowledge. Also, it is a method where if mistakes are done, then this may lead into system damage. So, researchers recommend you to install some reputable antivirus tool to remove .kupidon file virus automatically from the system.

Text presented in .kupidon file virus text file:

All your files have been encrypted with Kupidon Virus.

Your unique id: –

As a private person you can buy decryption for 300$ in Bitcoins.

But before you pay, you can make sure that we can really decrypt any of your files.

The encryption key and ID are unique to your computer, so you are guaranteed to be able to return your files.

To do this:

1) Download and install Tor Browser ( hxxps:// )

2) Open the hxxp://oc3g3q5tznpubyasjgliqyykhxdfaqge4vciegjaapjchwtgz4apt6qd.onion/ web page in the Tor Browser and follow the instructions.

Recommended Ransomware Removal & File Restoration Guide

.kupidon file virus is extremely robust in its nature to encrypt your files, and unless the threat is removed completely, file recovery is technically not possible. To do complete removal of .kupidon file virus out of your computer. Downlaod Spyhunter Anti-Spyware Tool Now.

After the infection is completely removed out of your compromised system, you may further process the encrypted file recovery either with your own lately created backup file. Or choose a trusted data recovery program to restore your data. Download a suggested recovery tool.

How to turn your encrypted files working once again?

Well, through the above explanations mentioned, you might have learned actually what happened to your files after encryption. Since the malware that has affected your files is now removed with suggested scanner, you would still require to turn your files working. And we are now going to discuss how to accomplish this task. Based on expert’s researches and their findings, there’s a number of possible methods or ways which a user can get through to restore their encrypted files to work. Even many of victimized users have tried these methods with their own infected computer and success rate is almost 95 percent. So, you can hope to have your files back, and in order to accomplish complete restore of your infected data, we suggest you check out some suggested methods here:

Methods 1: Restore encrypted files using a powerful data recovery software

Before you start to read the steps, you should know this method is appropriate to those users who have found no solutions to decrypt their files affected by ransomware. But still they are able to utilize their system and can install a software. According to experts, this method has very low difficulty level as it utilizes a program to do so.

Although this method is called to be the safest way to recover encrypted files, it still have some limitations. Technically, the encrypted data recovery solution looks through your system and its partitions to recover original files which are actually deleted by virus to replace with the encrypted one. In many cases, the user tend to copy the encrypted files on some external drive and re-install Windows OS that actually declines the chances of data recovery through this method. So, after you have managed to clean your system against malware effects, leave the files as they are and get through the steps to restore your files using one of the top most data recovery app called Stellar Phoenix Data Recovery Software.

Step 1: At first, download the app on your system by clicking the download button below.

Step 2: Click on the downloaded file through your browser to execute its installer.

Step 3: In the license agreement page, click to accept the terms and click Next button. Further, follow on-screen instructions to complete the installation, and click on Finish button finally.

Step 4: After the installation is done, the program will run automatically. At the first interface, select the file types now that you intend to recovery followed by clicking Next.

Step 5: Select the drives over which you need the software to run over and perform the recovery of encrypted files. Done? Click on Scan button.

Step 6: The software will now scan all selected drive to complete the restore process, however it may take some time depending upon volume of drives and number of files or directories were there previously. After the scanning process ends, you will be shown with a file explorer with preview of your data which you want to recover. Just select those which you need to be restored.

Step 7: Browse a location where you want the restored data to be saved.

Method 2: Encrypted file recovery with a lately created Windows backup

This method is technically for those who have a lately created Windows backup saved somewhere and is not affected by the ransomware. Using inbuilt system recovery services, the backup can restore the files which are included under the backup. This method is considered easier as well and leaves no software, thus considered as a very popular method to fight against emergencies caused by infectious malware. Here are the steps to follow:

Step 1: Hit Win + R key combination and to execute Run command line.

Step 2: In the Run text field, type ‘ms-settings:windowsupdate’ and hit the OK button.

Step 3: You will be shown Windows update settings, but you have actually to click Backup option as shown in picture, and located in left pane.

Step 4: Click on ‘More Options’ to open Backup Options panel.

Step 5: As shown in the image below, select or click on “Restore files from a current backup.”

Step 6: In the next shown window, locate the backup where you have saved it, and click on restore button below as marked in the image.

Methods 3: Using Shadow Explorer Application

This file recovery solution is recommended to those who have their backup but is currently not working, still the files under backup are not yet deleted. In this case, Shadow Explorer is an application that can help you restoring your files from those backup files which are active, but still disabled by ransomware somehow. Under this circumstance, inbuilt Windows Backup and Recovery option will not work for you, rather the software will do the magic easily. To accomplish file recovery in this case, get through the steps here mentioned:

Step 1: Click the button below to download Shadow Explorer on your computer.

Step 2: Browser the location where you have downloaded the file. Double click and extract the zip file.

Step 3: Click to open ShadowExplorerPortable directory and double click on the file as shown in the image below.

Step 4: A drop down menu will appear on screen, so just select a desired Date and time according to your requirements on the top left of Shadow Explorer app, and choose the files in given interface that you want to restore using the software. Once the selection is done, Click on the button Export..

Methods 4: Using other decryptors

Well, this method might sounds a bit weird as every ransomware identity basically uses different enciphers and methods to encrypt files on targeted computers. But when the a ransomware which has actually infected your machine comes from a ransomware family for which a decryptor is officially working and available as well, then this might work for you. Technically, this method is just based on luck and analysis, still many users have reported this worked for them. So, if you have seen a ransomware has infected your computer, the very first thing you should do is to identity what kind of virus has actually affected your machine. In most of the cases, ransomware attacks are irreversible, still those infections basically comes from a parent ransomware which might be cracked earlier. For an instance, Scarab ransomware or Hiddentear ransomware are some families which can be decrypted. To check your luck if the present ransomware that has affected your machine is decryptable or not. To do so, follow the guidelines below:

Step 1: Check the Ransomware Database Here and check if decryptor is available for the malware

Step 2: In case you find no results, you can check an open source project called NoMoreRansom to find the ransomware details and decryptor, which has affected your machine. If found, download the decryptor on your computer’s local drive. This page is being regularly updated by its officials once a ransomware is discovered in world.

Step 3: Before you proceed with the downlaoded decryptor, make sure you have backup all your important files.

Step 4: Execute the decryptor to scan and restore your files easily.

Recommended Ransomware Removal & File Restoration Guide

.kupidon file virus is extremely robust in its nature to encrypt your files, and unless the threat is removed completely, file recovery is technically not possible. To do complete removal of .kupidon file virus out of your computer. Downlaod Spyhunter Anti-Spyware Tool Now.

After the infection is completely removed out of your compromised system, you may further process the encrypted file recovery either with your own lately created backup file. Or choose a trusted data recovery program to restore your data. Download a suggested recovery tool.