RansomwareRemoval Guide

Remove J3ster Virus (.j3ster Files Ransomware)

J3ster – Ransomware

The J3ster stands for a ransomware-type infection. J3ster was elaborated specifically to encrypt all major file types. Once the file is encrypted people are unable to use them. J3ster adds the “.j3ster” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by J3ster, will be renamed into “myphoto.jpg.j3ster“. As soon as the encryption is completed, J3ster places a special text file into every folder containing the encrypted data.

The message given by J3ster text file requesting for the ransom is definitely the like the statements given by other ransomware virus representatives. It actually mentions that the info is encrypted which the only way to restore it is to use a a special decryption key. Regretfully, this is absolutely true. The sort of cryptography mechanism applied by J3ster is still not appropriately examined. Still, it is absolutely specific that each victim might be given the specific decryption key, which is totally unique. It is difficult to bring back the files without the key available.

Another technique of J3ster is that the victims cannot get to the key. The key is kept on a particular server run by the frauds related to J3ster ransomware. To get the key and recover the important info people have to pay the ransom.

Nonetheless, regardless of the asked for amount, people should keep away from paying the ransom. Cyber frauds are unfair, so they tend to entirely ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom usually does not give any positive outcome and people simply lose their money for nothing.

We highly encourage 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 J3ster ransomware and to recover the data data free of charge. Hence, the only right decision is to recover the lost information from the available backup.

Virus Summary

NameJ3ster Ransomware
File Extension.j3ster
TypeRansomware
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 j3ster extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the web is now overwhelmed with threats that look similar to J3ster ransomware. Destructive programs of such kind are usually elaborated to encrypt essential data and to state 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 unique decryption key for information decryption.

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

Remember that even if you create such backups, they should be put into a special storage utility not connect to your main computer. You may use the USB Flash Drive or external hard disk 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 in addition to other files, so it’s absolutely not a good storage place.

How did ransomware infect my system?

There are several ways used by online scams to distribute J3ster ransomware. Even though it is uncertain how precisely J3ster injects your PC, there are some leaks through which it may infiltrate the system:

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

Often J3ster ransomware might be presented as some legitimate software application, for example, in the pop-ups advising users to execute some important software application updates. This is the common trick used by online scams to persuade people into downloading and installing J3ster infection manually, by ways of their direct participation in the installation process.

Additionally, the criminals might describe different e-mail spam methods to inject malicious codes into PC. So, they may describe to sending unsolicited spam e-mails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some photos, files, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may severely harm the system. Fictitious Adobe Flash Player update alerts may result in J3ster virus injection. As for the cracked applications, these illegally downloaded programs may likewise consist of harmful codes resulting in J3ster secret installation. Finally, injection of J3ster may occur by means of Trojans that covertly get injected into the system and install harmful tools without the user’s permission.

Is there any method to prevent the injection of J3ster ransom virus?

Although there is no 100% guarantee to avoid your computer from getting infected, there are some pieces of recommendations we want to share with with you. Firstly, be very mindful when you browse the web and especially while downloading complimentary programs. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may include other unwanted utilities in the bundle, so they may be harmful. Ensure that your current anti-virus and your entire OS is always appropriately updated.

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

Screenshot of files with “.j3ster” extension added by the ransomware:
J3ster Ransomware - encrypt files with .j3ster extension

Use GridinSoft Anti-Malware to remove J3ster 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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