RansomwareRemoval Guide

Remove Yajoza Virus (.yajoza Files Ransomware) – VoidCrypt Ransomware

Yajoza – Ransomware

The Yajoza stands for a ransomware-type infection. The infection comes from the VoidCrypt ransomware family. Yajoza was elaborated specifically to encrypt all major file types. When the file is encrypted people are not able to use them. Yajoza adds the “.yajoza” extension for each file encrypted by it. For example, the file “myphoto.jpg“, when encrypted by Yajoza, will be renamed into “myphoto.jpg.yajoza“. As soon as the encryption is completed, Yajoza places a special text file into every folder containing the encrypted data.

The message given by Yajoza text file requesting the ransom is absolutely the like the statements given by other ransomware representatives coming from the VoidCrypt clan. It actually points out that the info is encrypted and that the only way to bring back it is to use a a special decryption key. Sadly, this is definitely true. The kind of cryptography mechanism applied by Yajoza is still not appropriately examined. Still, it is absolutely particular 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 trick of Yajoza is that the victims cannot access to the key. The key is kept on a specific server run by the frauds related to Yajoza ransomware. To get the key and recover the important information people need to pay the ransom.

Nevertheless, irrespective of the asked for amount, people should stay away from paying the ransom. Cyber frauds are not fair, so they tend to completely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom generally does not give any positive result and people simply waste their money for nothing.

We highly advise that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Yajoza ransomware and to recover the data data for free. Therefore, the just best decision is to recover the lost data from the available backup.

Virus Summary

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

Remember that the internet is now overwhelmed with threats that look comparable to Yajoza ransomware. Destructive programs of such kind are normally elaborated to encrypt important data and to state the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to create the distinct decryption key for data decryption.

Thus, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is simply not feasible. The only way to prevent the loss of your crucial information is to regularly create backups of your important information.

Remember that even if you create such backups, they should be placed into a special storage utility not connect to your main PC. You may use the USB Flash Drive or external hard disk drive for this purpose, or refer to the help of the cloud storage. If you save your backup files on your common system they may be encrypted in addition to other files, so it’s certainly not a good storage location.

How did ransomware infect my system?

There are numerous ways used by online frauds to distribute Yajoza virus. Even though it doubts how precisely Yajoza injects your system, there are some leaks through which it may penetrate the system:

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

Frequently Yajoza ransomware might exist as some legitimate software application, for example, in the pop-ups advising users to execute some crucial software updates. This is the typical trick used by online scams to persuade people into downloading and installing Yajoza infection manually, by methods of their direct participation in the installation process.

In addition, the criminals may refer to various email spam tactics to inject harmful 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 receipts, documents, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may seriously harm the system. Fictitious Adobe Flash Player upgrade alerts may result in Yajoza ransom injection. When it comes to the cracked applications, these illegally downloaded programs may also consist of harmful codes resulting in Yajoza secret installation. Lastly, injection of Yajoza may happen by ways of Trojans that privately get injected into the system and install malicious tools without the user’s consent.

Is there any way to avoid the injection of Yajoza ransom virus?

Despite the fact that there is no 100% guarantee to avoid your PC from getting infected, there are some pieces of guidance we wish to share with with you. First off, be very mindful when you surf the web and specifically while downloading complimentary apps. Stay 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 destructive. Ensure that your current antivirus software and your entire operating system is always duly updated.

Of course, downloading pirated software is prohibited and may result in necessary damage to be produced your PC. For this reason, stay away from downloading cracked software. You are also strongly advised to reconsider your existing security software and possibly change to another security solution that can render much better services of defending your system.

Below please find the quotation from the Yajoza text file:

All Your Files Has Been Encrypted

You Have to Pay to Get Your Files Back

1-Go to C:\\ProgramData\\ or in Your other Drives   and send us prvkey*.txt.key  file ,  *  might be a number (like this : prvkey3.txt.key)

2-You can send some file little than 1mb for Decryption test to trust us But the test File should not contain valuable data

3-Payment should be with Bitcoin

4-Changing Windows without saving prvkey.txt.key file will cause permanete Data loss

Our Email:golpayagob@gmail.com

in Case of no Answer:yajoza11@telegram.org 

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

Use GridinSoft Anti-Malware to remove Yajoza 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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