Ygkz Virus Removal Guide (+Decrypt .ygkz files)

Ygkz Virus – Details

Ygkz is a malicious software functioning as typical ransomware. Michael Gillespie, the well-known virus researcher, very first found this new name in the DJVU ransomware family.

Ygkz was created for the sole purpose to encrypt all popular file types. Realistically, as soon as the encryption is successfully accomplished, the users are unable to get access to them. Ygkz ransomware adds its own “.ygkz” to all the encrypted files. For instance, the file “price_list.xls”, as soon as modified by Ygkz, will be entitled as “price_list.xls.ygkz”. As soon as the encryption is accomplished, Ygkz puts its own special text file (_readme.txt) into all the folders that keep the encrypted files.

The message mentioned by document asking for the random os very comparable to the alerts given by other ransomware threats coming from the DJVU family. The warning essentially indicates that the information has been encrypted and the only option to get access to it is to use a distinct standalone key. Regretfully, this statement is definitely true.

The approach to encrypt the files used by Ygkz is not entirely looked into. However, there is no doubt that each computer owner may be released a special decryption key, which is definitely distinct. It is incredibly tough to recover the data without the proper type in place.

“Don’t worry, you can return all your files!”, from text file message:

message from Ygkz virus

One more peculiarity of the Ygkz ransomware is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the total control by the crooks who have actually introduced the Ygkz infection into the world wide web. In order to acquire the key and restore the essential data, the users are told to connect with the frauds via email or by telegram and to pay the ransom in the quantity of $980.

The message also says that individuals need to contact the Ygkz authors within 72 hours upon the minute of the data file encryption. The alert indicates that by doing so individuals will obtain a 50% discount rate, for that reason, the ransom amount drops down to $490.

No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online crooks will keep their guarantees, so they might not care at all what the victims feel about the file encryption, even when the quantity of the ransom is gotten into their accounts. Hence, paying ransom typically does not lead to a successful recovery. So, the users may simply lose their money for absolutely nothing.

Similarly, we advise you not to get in touch with the frauds as they advise. Do not transfer loan into their wallets. There are no applications that could split the Ygkz ransomware or bring back the data at no charge. For that reason, the only right choice is to bring back the data from possible backups (if readily available).

Virus Summary

NameYgkz Ransomware
File Extensionygkz
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-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .ygkz extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsCosd, Plam, Pola
Ygkz Removal Tool   GridinSoft Anti-Malware
Ygkz Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections comparable to the Ygkz ransomware. For instance, this particular hazard is essentially identical to Brusaf and other ransomware-type infections. These destructive energies have actually been developed in order to encrypt the essential data and reveal the need for the users to pay the ransom. All these infections use the similar algorithm to create the specific key for effective data decryption.

Unless the Ygkz ransomware is still under the advancement process or has got some concealed bugs, it is not possible to restore the information by hand. Therefore, the only working solution to prevent the loss of your essential data is to routinely keep updated backups of all your crucial documents.

Another crucial piece of suggestions is to save the backups on unique storage not connected to your primary device. For example, you might save it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really risky, given that the backup might likewise be encrypted by the Ygkz .

Leaks for the Ygkz ransomware attack.

Ygkz utilizes lots of courses to infiltrate the vulnerable computer systems. It is not certain what particular technique was utilized in your case, however, the intrusion may occur through the following channels:

  • bundling with third-party programs, generally free apps;
  • spam emails from the unidentified senders;
  • websites offering free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Ygkz might disguise itself as some real application, for instance, through the misleading informs demanding installation of some software application update. This is the most common technique utilized by the scams to inject the Ygkz virus files into the system. This way users partially take part in its setup, without clearly comprehending the risk.

Furthermore, the scams may send unsolicited spam e-mail with tricky alerts motivating individuals to open suspicious attachments or click on some download links, for instance, those encouraging individuals to open specific pictures, text files, tax documents and other information.

No doubt, opening these files or clicking on the malicious links might essentially damage the system. Fake Media Player upgrade notifications may result in the Ygkz ransomware seepage. Likewise, downloading the split software might furthermore include the ransomware installer. The last however not the least, installation of Ygkz may take place through some Trojan horses that may be set up stealthily into the system and without the user’s direct approval or even authorization.

Preventing the Ygkz virus attack.

Of course, there is no absolute guarantee that your computer system will be constantly free of any malware attacks, however, we wish to share some useful pointers with you to make it safer. Ensure to pay very close attention while browsing the web and especially while downloading cost-free programs. Do not open any suspicious e-mail accessories, specifically if the sender is not known to you.

Do not forget that particular freeware installer might also include some other additional apps in the bundle. These extra applications may be really damaging. It is of utmost value to keep your anti-virus software application and your os in general to be constantly correctly updated.

It is quite rational that downloading pirated software is prohibited, however, furthermore, such unapproved programs use might likewise bring severe damage to your computer. Thus, do not download any broken programs. Plus, the reality that your present anti-virus did not protect the system from the Ygkz ransomware is a great factor for you to reassess your choices and change to another program that can render the protecting functions on a much better level.

Below please find the quotation from the Ygkz text file:

 Don't worry, you can return all your files!
 All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
 The only method of recovering files is to purchase decrypt tool and unique key for you.
 This software will decrypt all your encrypted files.
 What guarantees you have?
 You can send one of your encrypted file from your PC and we decrypt it for free.
 But we can decrypt only 1 file for free. File must not contain valuable information.
 You can get and look video overview decrypt tool:
 Price of private key and decrypt software is $980.
 Discount 50% available if you contact us first 72 hours, that's price for you is $490.
 Please note that you'll never restore your data without payment.
 Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.
 To get this software you need write on our e-mail:
 Reserve e-mail address to contact us:

 Our Telegram account:

Screenshot of files with “.ygkz” extension added by the ransomware:”

Ygkz Ransomware - encrypt files with .ygkz extension

Use GridinSoft Anti-Malware to remove Ygkz 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

Use Emsisoft Decryptor for restore ygkz files

You can download Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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About 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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