What is Gyjeb Ransomware
Gyjeb is a ransomware virus that runs data encryption to extort money from victims. It looks very similar to Keq4p Ransomware, which means they are likely to come from the same malware family. Just like Keq4p, Gyjeb Ransomware assigns a random string of senseless symbols along with its own .gyjeb extension. To illustrate, a file like
1.pdf will change its look to something like
1.pdf.wKkIx8yQ03RCwLLXT41R9CxyHdGsu_T02yFnRHcpcLj_xxr1h8pEl480.gyjeb and reset its original icon. After all files end up edited this way, the virus creates a text note called nTLA_HOW_TO_DECRYPT.txt which entails decryption instructions. You can familiarize yourself with this note in the screenshot below.
Your network has been breached and all data were encrypted.
Personal data, financial reports and important documents are ready to disclose.
To decrypt all the data and to prevent exfiltrated files to be disclosed at
you will need to purchase our decryption software.
Please contact our sales department at:
To get an access to .onion websites download and install Tor Browser at:
hxxps://www.torproject.org/ (Tor Browser is not related to us)
Follow the guidelines below to avoid losing your data:
- Do not modify, rename or delete *.key.gyjeb files. Your data will be
- Do not modify or rename encrypted files. You will lose them.
- Do not report to the Police, FBI, etc. They don't care about your business.
They simply won't allow you to pay. As a result you will lose everything.
- Do not hire a recovery company. They can't decrypt without the key.
They also don't care about your business. They believe that they are
good negotiators, but it is not. They usually fail. So speak for yourself.
- Do not reject to purchase. Exfiltrated files will be publicly disclosed.
Developers say you have been attacked and now see your data locked from any access. In order to return it and make sure no data leaks will occur, victims are obliged to purchase unique decryption software held only by cybercriminals. You should contact them by logging into the attached .onion link in Tor browser. After this, cybercriminals will supposedly give you another set of instructions to complete the payment and acquire the decryption tool. The price for decryption is not disclosed until you establish contact with cybercriminals. Note that the price of decryption is often set high (from hundreds to thousands of dollars), which makes such a purchase unaffordable for most of the victims. This is why such ransomware tries to target business owners that can sacrifice their money for important data. Despite this, trusting any ransomware developers in terms of the payment is always a risk. They can fool you and do not send any decryption tools even after receiving your money. At this point, no third-party decryptors alas know how to approach data blocked by Gyjeb Ransomware. This is because ransomware uses strong cryptographic algorithms which are hard to decipher without damage. Therefore, the best solution to recover your data is backup copies. You can use them from external devices after deleting the virus. In case no such option is present, you can refer to decryptors and recovery tools by trusted third-party vendors, but this is less likely to help. Third-party tools can damage your files and make them permanently undecryptable. If you are still willing to try them, make sure to use only trusted and effective decryption tools. You can find a couple of them in our guide below. Before running performing any recovery methods, make sure to delete Gyjeb Ransomware from your system as well. Instructions on complete removal can also be found below.
How Gyjeb Ransomware infected your computer
Malicious spam letters, trojans, backdoors, keyloggers, unreliable downloads of pirated or cracked software from unofficial and file-hosting websites like Peer-to-Peer sharing networks (Torrent clients, Gnutella, eMule, etc.), fake updates, vulnerable RDP configuration, and more are all distribution channels abused by malware proliferators.
The one to point out in detail is e-mail spam. Fraudulent figures run forged campaigns that spread a number of identical letters from ostensibly legitimate companies (FedEx, DHL, etc.). This trick helps stimulate users to open the received letters. In case such letters are actually malicious, potential victims will spot either some attached files or links leading to download pages. Many virus developers use popular file formats like .DOCX, .PDF, .EXE, .RAR, .ZIP, or .JS to bundle executable scripts meant to initiate the installation of malware. Accessing these files means malicious software will penetrate your system immediately denying all protection protocols set up by default Windows Defender. The penetration can be averted, but only if you have special anti-malware software with live protection installed. You can find more information about such and other protectionary tools in our tutorial below. This way, you will be able to protect yourself against various threats like Gyjeb Ransomware that dwell around the web in the future.
- Download Gyjeb Ransomware Removal Tool
- Get decryption tool for .gyjeb files
- Recover encrypted files with Stellar Data Recovery Professional
- Restore encrypted files with Windows Previous Versions
- Restore files with Shadow Explorer
- How to protect from threats like Gyjeb Ransomware
Download Removal Tool
To remove Gyjeb Ransomware completely, we recommend you to use Norton Antivirus from Symantec. It detects and removes all files, folders, and registry keys of Gyjeb Ransomware and prevents future infections by similar viruses.
Alternative Removal Tool
To remove Gyjeb Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of Gyjeb Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.
Gyjeb Ransomware files:
Gyjeb Ransomware registry keys:
How to decrypt and restore .gyjeb files
Use automated decryptors
Download Kaspersky RakhniDecryptor
Use following tool from Kaspersky called Rakhni Decryptor, that can decrypt .gyjeb files. Download it here:
There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.
Dr.Web Rescue Pack
Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .gyjeb files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.
If you are infected with Gyjeb Ransomware and removed from your computer you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:
Use Stellar Data Recovery Professional to restore .gyjeb files
- Download Stellar Data Recovery Professional.
- Click Recover Data button.
- Select type of files you want to restore and click Next button.
- Choose location where you would like to restore files from and click Scan button.
- Preview found files, choose ones you will restore and click Recover.
Using Windows Previous Versions option:
- Right-click on infected file and choose Properties.
- Select Previous Versions tab.
- Choose particular version of the file and click Copy.
- To restore the selected file and replace the existing one, click on the Restore button.
- In case there is no items in the list choose alternative method.
Using Shadow Explorer:
- Download Shadow Explorer program.
- Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
- Select the drive and date that you want to restore from.
- Right-click on a folder name and select Export.
- In case there are no other dates in the list, choose alternative method.
If you are using Dropbox:
- Login to the DropBox website and go to the folder that contains encrypted files.
- Right-click on the encrypted file and select Previous Versions.
- Select the version of the file you wish to restore and click on the Restore button.
How to protect computer from viruses, like Gyjeb Ransomware, in future
1. Get special anti-ransomware software
Use ZoneAlarm Anti-Ransomware
Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.
2. Back up your files
As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. Gyjeb Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.
3. Do not open spam e-mails and protect your mailbox
Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.