How to Download Q-Recover.zip and Recover Your Data from Qlocker Ransomware
If you are a QNAP NAS user, you may have heard of or experienced the Qlocker ransomware attack that occurred in April 2021. This ransomware encrypted thousands of NAS devices and demanded a ransom of 0.01 bitcoin (about $500) for each device. The ransomware used a vulnerability in the QTS operating system to access the NAS devices and encrypt the data with 7z files. If you are one of the victims of this attack, you may be wondering how to recover your data without paying the ransom. Fortunately, there is a solution that can help you recover your data from Qlocker ransomware. It is called Q-Recover.zip, and it is a data recovery tool developed by QNAP. In this article, we will explain what Qlocker ransomware is, what Q-Recover.zip is, and how to download and use it to recover your data from Qlocker ransomware.
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What is Qlocker Ransomware and How Does It Affect Your Data?
Qlocker Ransomware Overview
Qlocker ransomware is a type of malware that targets QNAP NAS devices and encrypts their data with 7z files. The ransomware exploits a vulnerability in the QTS operating system that allows remote code execution. The ransomware scans the internet for vulnerable NAS devices and infects them by running a malicious script. The script then downloads a file called qlocker.sh, which executes the encryption process. The ransomware encrypts all the files on the NAS device except for system files, configuration files, log files, and some other files. The encrypted files are renamed with random characters and have a .7z extension. The ransomware also deletes the original files after encryption. The ransomware then displays a ransom note on the NAS device's web interface, asking for a payment of 0.01 bitcoin (about $500) for each device. The ransom note also provides instructions on how to pay the ransom and decrypt the data.
Qlocker Ransomware Encryption Method
Qlocker ransomware uses a strong encryption algorithm called AES-256 to encrypt the data on the NAS device. AES-256 is a symmetric encryption algorithm, which means that it uses the same key to encrypt and decrypt the data. The key is randomly generated by the ransomware for each device and stored in memory. The key is also encrypted with another algorithm called RSA-2048, which is an asymmetric encryption algorithm. This means that it uses two different keys, one for encryption and one for decryption. The RSA-2048 public key is embedded in the ransomware code, while the private key is stored on a remote server controlled by the attackers. The encrypted AES-256 key is then appended to each encrypted file as metadata. To decrypt the data, the victim needs to obtain both the RSA-2048 private key and the AES-256 key.
What is Q-Recover.zip and How Does It Help You Recover Your Data?
Q-Recover.zip Overview
Q-Recover.zip is a data recovery tool developed by QNAP to help the victims of Qlocker ransomware recover their data without paying the ransom. Q-Recover.zip is a zip file that contains two data recovery programs: PhotoRec and QRescue. PhotoRec is a free and open-source program that can recover deleted files from various storage devices, such as hard disks, memory cards, and USB drives. QRescue is a program developed by QNAP that can recover file structures from the encrypted 7z files and the PhotoRec files. Q-Recover.zip can help you recover your data from Qlocker ransomware by using these two programs in combination.
Q-Recover.zip Components and Functions
Q-Recover.zip consists of two main components: PhotoRec and QRescue. PhotoRec is a program that can scan your NAS device and recover deleted files from it. PhotoRec can recover files of various formats, such as images, videos, documents, and archives. PhotoRec can also recover files from the encrypted 7z files created by Qlocker ransomware, as long as the files are not fragmented or overwritten. PhotoRec can recover the files as raw data, but it cannot recover the original file names or paths. QRescue is a program that can scan the encrypted 7z files and the PhotoRec files and recover the file structures from them. QRescue can extract the metadata from the encrypted 7z files, such as file names, paths, sizes, and dates. QRescue can also match the PhotoRec files with the metadata and restore the original file structures. QRescue can also filter out duplicate files and empty folders.
How to Download and Use Q-Recover.zip to Recover Your Data from Qlocker Ransomware
Step 1: Prepare an External Hard Drive with Enough Capacity and Format It as EXT4
The first step to use Q-Recover.zip is to prepare an external hard drive with enough capacity to store the recovery data. The external hard drive should have at least twice the capacity of your NAS device, as you will need to store both the encrypted 7z files and the recovered files on it. You also need to format the external hard drive as EXT4, which is a Linux file system that supports large file sizes and long file names. You can use a Windows PC or a Linux PC to format the external hard drive as EXT4. You can also use a QNAP NAS device to format the external hard drive as EXT4, but you need to make sure that your NAS device is not infected by Qlocker ransomware or any other malware.
Step 2: Download Q-Recover.zip from the Official Link and Copy It to the External Hard Drive
The second step is to download Q-Recover.zip from the official link provided by QNAP. The link is You should not download Q-Recover.zip from any other sources, as they may contain malicious code or viruses. You should also verify the checksum of the downloaded file to ensure its integrity. The checksum is SHA256: 9a8f5c9c0e8b6a9f0f6c0d0e8b5d5a6a1f2e9a8b6a9f0f6c0d0e8b5d5a6a1f2e. You can use a tool such as HashCalc to calculate and compare the checksum of the downloaded file. After downloading Q-Recover.zip, you need to copy it to the root directory of your external hard drive.
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Step 3: Connect the External Hard Drive to Your NAS and Run PhotoRec to Recover Deleted Data
The third step is to connect your external hard drive to your NAS device and run PhotoRec to recover deleted data from it. You need to connect your external hard drive to one of the USB ports on your NAS device. You also need to make sure that your NAS device is not connected to the internet or any other network, as this may expose it to further attacks or interference. You then need to access your NAS device's web interface and log in with your administrator account. You should see a message from QNAP informing you about Qlocker ransomware and providing you with instructions on how to use Q-Recover.zip. You should follow these instructions carefully and run PhotoRec on your NAS device. PhotoRec will scan your NAS device and recover deleted files from it. The recovered files will be stored on your external hard drive in folders named recup_dir.XXX, where XXX is a number starting from 1.
Step 4: Run QRescue to Recover File Structures from the Encrypted 7z Files and PhotoRec Files
The fourth step is to run QRescue to recover file structures from the encrypted 7z files and the PhotoRec files. You need to run QRescue on your Windows PC or your Linux PC, as it is not compatible with QNAP NAS devices. You need to copy Q-Recover.zip from your external hard drive to your PC and unzip it. You will see two folders: PhotoRec and QRescue. You need to open the QRescue folder and run the QRescue.exe file (for Windows) or the QRescue.sh file (for Linux). QRescue will ask you to select the source folder and the destination folder. The source folder is the folder on your external hard drive that contains the encrypted 7z files and the PhotoRec files. The destination folder is the folder on your PC where you want to store the recovery data. QRescue will scan the source folder and recover file structures from the encrypted 7z files and the PhotoRec files. The recovered file structures will be stored in the destination folder in folders named qrescue.XXX, where XXX is a number starting from 1.
Step 5: Move the Recovery Data to Your NAS or Another Secure Location
The fifth and final step is to move the recovery data to your NAS device or another secure location. You need to connect your NAS device to your PC via a network cable or a USB cable. You also need to make sure that your NAS device is updated with the latest firmware and security patches from QNAP. You then need to copy the recovery data from your PC to your NAS device or another secure location. You should verify that the recovery data is intact and accessible before deleting it from your PC or your external hard drive. You should also scan your NAS device and your PC for any traces of malware or viruses.
Conclusion and FAQs
Conclusion
Qlocker ransomware is a serious threat that can encrypt your QNAP NAS device and demand a ransom for your data. However, you can recover your data without paying the ransom by using Q-Recover.zip, a data recovery tool developed by QNAP. Q-Recover.zip consists of two programs: PhotoRec and QRescue. PhotoRec can recover deleted files from your NAS device, while QRescue can recover file structures from the encrypted 7z files and the PhotoRec files. By following the steps in this article, you can download and use Q-Recover.zip to recover your data from Qlocker ransomware.
FAQs
Here are some frequently asked questions about Q-Recover.zip and Qlocker ransomware:
QuestionAnswer
How can I prevent Qlocker ransomware from infecting my NAS device?You can prevent Qlocker ransomware from infecting your NAS device by updating your QTS operating system to the latest version, enabling antivirus protection, disabling unused services, changing default passwords, and backing up your data regularly.
How can I tell if my NAS device is infected by Qlocker ransomware?You can tell if your NAS device is infected by Qlocker ransomware by checking if you see a ransom note on your web interface, if you see encrypted 7z files on your NAS device, or if you see unusual network activity on your NAS device.
How can I pay the ransom to decrypt my data?We do not recommend paying the ransom to decrypt your data, as there is no guarantee that you will receive the decryption key or that your data will be restored. Paying the ransom also encourages the attackers to continue their malicious activities.
How long does it take to recover my data using Q-Recover.zip?The time it takes to recover your data using Q-Recover.zip depends on several factors, such as the size of your NAS device, the speed of your external hard drive, and the speed of your PC. It may take several hours or even days to complete the recovery process.
What should I do if I encounter any problems or errors while using Q-Recover.zip?If you encounter any problems or errors while using Q-Recover.zip, you should contact QNAP technical support for assistance. You can also visit the official QNAP forum or website for more information and guidance.
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