Ransomware
If your files have been encrypted, we accept the challenge of analyzing your case.

Buran Ransomware

Buran ransomware is yet another group that has applied RaaS (Ransomware as a Service) tactics, which is nothing more than outsourcing attacks. The groups that apply this tactic present their malware in forums on the Dark Web in search of buyers willing to make attacks.

RaaS expands the scope of ransomware, increasing the number of attacks exponentially. Even as the scope expands, the group avoids attacking certain countries such as Russia, Belarus, and Ukraine.

Buran is designed to check what language the operating system is in, if it is from one of these countries, the encryption is not done, but if the encryption has already been started, the group releases the decryption key for free.

Buran Ransomware is distributed using the Rig Exploit Kit, it invades devices through spam emails, cracked program download sites. In some cases, they send emails with attachments named as important files such as receipts, invoices and accounts payable.

Buran has the encryption algorithm unknown, however they probably use RSA and AES, which are the most commonly used types in all ransomware.

After encrypting all files on the attacked computer or device, they create a text file (“!!! YOUR FILES ARE ENCRYPTED !!!. TXT”), and place it on the desktop. And they block administrator access, preventing them from altering, saving or editing the files.

In the ransom note the group informs that the files have been encrypted and that their decryption is only possible with a key that is kept by the group on a remote server. This key will only be released when the victim pays the ransom.

It is worth remembering that there is no guarantee that the group will release the decryption key after the ransom is paid, so it is recommended that the victim look for other solutions, such as backups, in case he/she has not been encrypted, and companies specialized in recovering files encrypted by ransomware, such as Digital Recovery.

Buran Ransomware

Recover Files Encrypted by Buran Ransomware

Digital Recovery works on highly complex cases of ransomware attacks. We have developed exclusive technologies that enable us to recover files encrypted by any ransomware extension, on any storage device.

Our solutions have been developed by our experts and, all of them are compliant with the General Data Protection Regulation (GDPR), the whole process is done with complete security.

We can recover data remotely, in cases where sending the affected media is not possible. This recovery is done in a totally secure virtual environment, and may speed up the recovery process.

We know that confidentiality in these cases is essential, so we provide all our customers with a confidentiality agreement (NDA), all files are kept confidential.

Start the recovery process right now, talk to a specialist.

Ransomware Recovery FAQ

Every day, ransomware attacks get better and better. After a successful attack attempt, ransomware quickly maps the user’s most important files to begin encryption. Microsoft Office files, databases, PDFs and design are among its main targets.

Ransomware is designed to go unnoticed, so it can disable all system defences without being noticed and start the process of encrypting files. Even if ransomware goes unnoticed by the system, it can be noticed by the user, as it uses system resources to perform the encryption, which can slow down the system. Ransomware also changes file extensions. So look out for these signs: slowing down the system and adding extensions to files.

To find out more, talk to our experts.

Yes, this is possible. You can restart the computer in safe mode, which will limit the action of the ransomware since the system resources will be locked. You can also disconnect the computer from the Internet, which can interrupt the hackers’ connection to your system, it should be noted that there are ransomwares that work even without being connected to the Internet. You can also run diagnostics to identify threats with your antivirus software, the vast majority of antivirus software have this function.

But there are cases where the encryption was interrupted by the user, some files had already been affected and this caused an error in the encryption and the hackers could not restore the files, even with the decryption key. In these cases, only a data recovery company, such as Digital Recovery, can recover the files.

To find out more, talk to our experts.

Yes, the attacks mainly take place on holidays and weekends, in the early hours of the morning. These days are chosen because there are not many active users on the system, making it impossible to discover the attack before the encryption is complete.

To find out more, talk to our experts.

The vast majority of ransomware uses RSA [Rivest-Shamir-Adleman] -2048 and AES [Advanced Encryption Standard] encryption.

To find out more, talk to our experts.

First of all, do not pay the ransom. No matter what the hackers say, there is no guarantee that the decryption key will actually be released after the ransom is paid.

The first thing to do is to inform the authorities about the attack. Governments have specialised cybercrime departments that will investigate the attack. Next, check if your backups have been affected, if so, only a specialist data recovery company can recover your files, this is the next step. Contact Digital Recovery who will assist you in the full recovery of your files.

To find out more, talk to our experts.

After contacting us and sending the affected media, we will diagnose the device to verify the extent of the damage caused by the ransomware, which will allow us to predict the duration of the process and provide the client with a budget. Once the budget is approved by the client, we begin the recovery process, for which we have proprietary software that can, with the help of our specialists, reconstruct the data.

If the client opts for remote recovery, instead of sending us the media, they will send the encrypted files to a virtual environment, totally secure, so that we can access them.

At the end of the process, we will perform a double check so that the customer can verify the integrity of the recovered files.

Payment is only made once the files have been delivered and validated by the client.

To find out more, talk to our experts.

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Andrew F. Nissin
Andrew F. Nissin
Andrew F. Nissin, a member of Digital Recovery's data engineering squad, has worked for more than a decade in systems defence and corporate data protection, and is an expert in cybersecurity and the structuring of data corrupted by malware cyberattacks and ransomware hijackings.
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