UAE Data Recovery Dubai is a leading company that deals with data recovery from hard drives and in general from digital media, for this reason we often receive requests for data recovery from the Cryptolocker virus and from similar cases, where the loss of data is not caused by a failure, but rather by a malware attack with ransom demand.
We have had sporadic successes with some cases thanks to flaws in the encryption system or thanks to the use of specific techniques for logical data recovery. Looking for the solution to the problem, we have identified some centers in Dubai UAE with which we work mainly to offer the solution to our customers involved in this type of attack. Unfortunately the service is rather onerous and for this reason accessible only to companies that face a serious information loss.
This is why our advice is always that of prevention. The best defense technique known today is the Differential Backup in the Cloud.
UAE Data Recovery Dubai is absolutely against the payment of the ransom and categorically rejects any activity other than the technique of pure data recovery in the laboratory. Beyond the direct commitment, when we do not have the solution, we collaborate with professional companies in the data recovery sector in Dubai UAE where we believe we can achieve the results expected by our customers.
For our data recovery and similar services, in the event of failure, the cost of processing is not charged. Contact us for a quote, we can help you.
Crypto Virus: what is it?
CryptoLocker, CryptoWall, TeslaCrypt, Freespeech.virus and Cryptobit are just some of the variants of a new generation typology of viruses: ransomware. These very aggressive malware make all the files from the most common extensions (.doc, .xls, .pdf, .jpg, .psd, etc.) unusable and request the payment of a ransom (“ransom” in English) to obtain the key decryption. In a nutshell: it is blackmail, a good and good cybercrime.
But how did I get infected?
There are so many ways these viruses can spread. Just receive an email with an infected link or attachment, download updates from unsafe sites or use external media infected with the virus.
Unfortunately, many antivirus programs are not aware of the problem and cannot detect the threat. Once the program has started, the virus begins to encrypt data using increasingly sophisticated algorithms.
Among these algorithms we also find the dreaded 2048-bit RSA, capable of generating an encryption key which, at the moment, makes any attempt at decryption impossible.
The only defense is updated antivirus programs that are sensitive to this type of attack (ransomware), combined with cloud backup systems that allow you to save your data periodically and with high security protocols.
What to do to limit the damage?
If you find that the computer has become visibly slower for no reason and that a suspicious program has been started, the right action is always to force the system shut down and contact data recovery professionals for an assessment of the situation.
With a timely shutdown of the system there is a good chance of saving much of the data that the malware has not had time to reach. If you have a security backup system (such as the aforementioned Atoll Backup , for example) you need to clean the system from the virus and, with the help of an expert, restore the computer directly from the cloud.
Is it possible to recover data infected with this type of virus?
Yes, there are several methods that allow you to decrypt data. For a long time the UAE Data Recovery Dubai has been trying to solve the problem and, in some cases, it has even managed to find valid solutions.
All viruses of this type offer the possibility of paying a ransom, but, of course, there is no guarantee that, once the payment has been made, the decryption key necessary to decode the data will also be sent. This is why we always advise against taking this path, because besides spending your money unnecessarily, you are also contributing to the development and maintenance of these viruses.
In short: beyond injury, insult too.
Data recovery techniques:
The first option (and also the simplest one) is the “data mining”, that is a technique that through the reading of the whole structure of the sectors of the disk is able to identify hidden data to the system. This data has not been encrypted and can be recovered. In these cases, the data correctly recovered is between 10% and 30% of the total amount. The limited amount of recovery is due to the fact that the method does not use decryption, but relies on files not infected with malware.
Another option (much more complex) involves data recovery by exploiting the possible knowledge related to the specific virus. Some viruses, in fact, have “weak points”, flaws that can be exploited to get their data back. It is therefore a matter of exploiting the errors committed by the hackers who created the virus.
The most frequent cases:
Some viruses use badly written encryption algorithms, so solutions have been found. Unfortunately these cases are increasingly rare, because the virus authors themselves have turned to more effective algorithms.
Some viruses present an error in the final generation of the “public key” with which the encryption was performed (an example is the TeslaCrypt virus). In these cases decryption is possible through a mathematical analysis procedure.
Some viruses offer the opportunity to have a single decrypted file from the blackmailers, as proof that the payment is worth and actually serves to get the data back. Using the original file and the decrypted one, it is possible to trace the decryption key necessary for reading the infected system.
Ref Link for – Avid Data Recovery