RansomwareRemoval Guide

Remove Jest Virus (+Decrypt .jest files) – FunFact Ransomware

Jest Virus Ransomware

The Jest mean a ransomware-type infection. The infection comes from the FunFact ransomware family. Jest was elaborated specifically to encrypt all major file types. When the file is encrypted people are unable to use them. Jest adds the “.jest” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by Jest, will be renamed into “myphoto.jpg.jest“. As soon as the encryption is finished, Jest places a special text file into every folder containing the encrypted data.

The message given by Jest text file requesting the ransom is absolutely the like the statements given by other ransomware representatives belonging to the FunFact type. It literally points out that the information is encrypted which the only way to restore it is to use a a special decryption key. Sadly, this is definitely true. The type of cryptography mechanism used by Jest is still not appropriately examined. Still, it is definitely particular that each victim may be given the specific decryption key, which is absolutely distinct. It is impossible to bring back the files without the key available.

Another trick of Jest is that the victims cannot access to the key. The key is saved on a specific server run by the frauds connected with Jest ransomware. To get the key and recover the important information people need to pay the ransom.

Nevertheless, irrespective of the asked for amount, people need to stay away from paying the virus. Cyber frauds are not fair, so they tend to totally disregard what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom usually does not give any positive result and people just waste their money for absolutely nothing.

We highly recommend that you do not contact these crooks and certainly do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Jest ransomware and to recover the data data totally free. Therefore, the only right decision is to recover the lost data from the available backup.

Virus Summary

NameJest Ransomware
File Extension.jest
TypeRansomware
FamilyFunFact
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special jest extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Remember that the web is now overwhelmed with threats that look comparable to Jest ransomware. Harmful programs of such kind are typically elaborated to encrypt important information and to set forth the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to generate the distinct decryption key for information decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is merely not feasible. The only way to prevent the loss of your important data is to frequently create backups of your important information.

Remember that even if you create such backups, they must be put into a special storage utility not connect to your main computer. You may use the USB Memory Stick or external disk drive for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted together with other files, so it’s absolutely not a good storage place.

How did ransomware infect my system?

There are a number of methods used by online frauds to distribute Jest virus. Despite the fact that it doubts how precisely Jest injects your PC, there are some leaks through which it may penetrate the system:

  • integration with third-party apps, especially freeware;
  • spam emails from unknown senders;
  • sites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Frequently Jest ransomware might be presented as some legitimate software, for instance, in the pop-ups instructing users to carry out some crucial software updates. This is the common trick used by online scams to persuade people into downloading and installing Jest infection manually, by methods of their direct participation in the installation process.

Furthermore, the criminals may refer to different email spam techniques to inject harmful codes into copmuter. So, they may describe to sending unsolicited spam e-mails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some video, files, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may seriously harm the PC. Fictitious Adobe Flash Player upgrade informs may result in Jest virus injection. As for the cracked software, these illegally downloaded programs may also include malicious codes causing Jest secret installation. Lastly, injection of Jest may take place by methods of Trojans that privately get injected into the system and install harmful tools without the user’s authorization.

Is there any way to prevent the injection of Jest ransomware?

Although there is no 100% guarantee to prevent your system from getting infected, there are some pieces of advice we want to share with with you. To start with, be really mindful when you browse the web and particularly while downloading complimentary apps. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Keep in mind that some freeware installers may include other unwanted utilities in the package, so they may be harmful. Make sure that your current antivirus and your entire operating system is always duly updated.

Of course, downloading pirated software is illegal and may lead to necessary damage to be made for your system. Thus, stay away from downloading cracked software. You are likewise highly recommended to reconsider your existing security software and possibly change to another security solution that can render far better services of protecting your Windows.

Screenshot of files with “.jest” extension added by the ransomware:
Jest Ransomware - encrypt files with .jest extension

Use GridinSoft Anti-Malware to remove Jest ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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