yakuza – General Info
The yakuza mean a ransomware-type infection. yakuza was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are not able to use them. yakuza adds the “.yakuza” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by yakuza, will be renamed into “myphoto.jpg.yakuza“. As soon as the encryption is completed, yakuza places a special text file into every folder containing the encrypted data.The message given by yakuza text file asking for the ransom is absolutely the same as the statements given by other ransomware representatives. It actually points out that the information is encrypted which the only way to bring back it is to use a an unique decryption key. Sadly, this is absolutely true. The sort of cryptography mechanism used by yakuza is still not properly examined. Still, it is absolutely specific that each victim might be given the specific decryption key, which is totally distinct. It is difficult to bring back the files without the key available.
Another trick of yakuza is that the victims cannot get to the key. The key is kept on a specific server run by the frauds related to yakuza ransomware. To get the key and recover the important info people need to pay the ransom.
yakuza encrypted your documents, but that might not be the only damage done to you. The ransomware might still be hidingon your computer. To identify whether this holds true, we suggest downloading GridinSoft Anti-Malware.
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Nonetheless, regardless of the requested amount, people must keep away from paying the ransom. Cyber frauds are not fair, so they tend to entirely disregard what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom generally does not give any positive result and people just lose their money for absolutely nothing.
We highly encourage that you do not contact these crooks and absolutely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack yakuza ransomware and to recover the data data totally free. Therefore, the only best decision is to recover the lost information from the available backup.
Virus Summary
| Name | yakuza Ransomware |
| File Extension | .yakuza |
| Type | Ransomware |
| Short Description | The 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. |
| Symptoms | File 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 yakuza extension to all the files modified by it. |
| Distribution Method | Spam Emails, Email Attachments |
| Removal Tool | GridinSoft Anti-Malware |
Keep in mind that the web is now overwhelmed with threats that look similar to yakuza ransomware. Harmful programs of such kind are generally elaborated to encrypt essential information and to set forth the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to create the special decryption key for information decryption.
Hence, 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 avoid the loss of your important files is to frequently create backups of your important information.
Bear in mind 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 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 definitely not a good storage place.
How did ransomware infect my system?
There are several ways used by online scams to distribute yakuza virus. Despite the fact that it doubts how precisely yakuza injects your computer, there are some leaks through which it may infiltrate the system:
- integration with third-party software application, especially freeware;
- spam emails from unknown senders;
- websites rendering free hosting services;
- pirated peer-to-peer (P2P) downloads.
Typically yakuza virus might be presented as some genuine software application, for example, in the pop-ups advising users to carry out some crucial software updates. This is the common technique used by online scams to persuade people into downloading and installing yakuza infection manually, by means of their direct participation in the installation process.
In addition, the criminals might refer to different email spam techniques to inject harmful codes into systems. So, they may refer to to sending unsolicited spam emails 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 files or clicking on such dangerous links may significantly damage the system. Fictitious Adobe Flash Player upgrade notifies may result in yakuza ransom injection. When it comes to the cracked software, these illegally downloaded programs may likewise consist of harmful codes leading to yakuza secret installation. Finally, injection of yakuza may take place by means of Trojans that covertly get injected into the system and install destructive utilities without the user’s approval.
Is there any method to prevent the injection of yakuza ransomware?
Although there is no 100% guarantee to avoid your system from getting infected, there are some pieces of guidance we want to show with you. First of all, be extremely cautious when you surf the web and especially while downloading free 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 malicious. Ensure that your current anti-virus and your entire operating system is always duly updated.
Of course, downloading pirated software is unlawful and may result in essential damage to be made for your system. For this reason, stay away from downloading cracked software. You are also highly encouraged to reconsider your existing security software and potentially change to another security solution that can render far better services of defending your PC.
Below please find the quotation from the yakuza text file:
[+] What\'s happened ? [+] all your files have been encrypted(locked) by us becuase of some security flows in your system [+] what should i do [+] keep calm and message us [+] do you guarantee recovery of my files?[+] it\'s our job, we can decrypt like we did encrypt and we\'ll prove that (unfortunately it\'s not free, and have to pay a small amount for it ) you\'ll receive decryption program which youc an choose and file/foldet to decrypt and makes your system just like it was price will depend on how soon you email us [+] well then how should i contact you [+] email : de-crypt@foxmail.com email2 : helptounlock@protonmail.com just mail us with you teslarvngID file in attachment (the file on all you folders besdie this file ) you should receive answer in 24h max [+] how can i trust you[+] you get what you pay for, this is our business and we have customer satisfaction rates witch affects later customers decision we decrypt one file for free for ensuring recoverability of your files sure you will recover your files after payment because if we don\'t our repopulation will go bad and others won\'t make payment. sure we don\'t want that [+]should i try third party tools[+] you can,but they won\'t work we use most advanced and proved methods of encryption, anyway make backup of you encrypted files before trying them because they may make your files undecryptable and will increese decryption price (decryptor of other clinets won\'t work for you too) [+]how is the payment done[+] your paymnet will be in bitcoins the faster you email and pay the lower the price you can buy bitcoins easly from https://localbitcoins.com/buy_bitcoins with you national bank transfer instiantly
Screenshot of files with “.yakuza” extension added by the ransomware:
Use GridinSoft Anti-Malware to remove yakuza ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
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.
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.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
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.
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.
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