If the system or file has been backed up, there will be no worries and troubles. Encrypted files can be directly recovered from cloud disk, hard disk or other disaster recovery systems. It is worth noting that before restoring the file, the first thing to do is to isolate the host and ensure that the virus in the system has been cleared, the disk has been formatted or the system has been reinstalled, so as to avoid encrypting the backup file at the moment when the mobile hard disk is inserted or after the network disk downloads the file to the local area.

Early backup is the most effective and cheapest way to recover files and systems.

Second, the decryption tool recovery

The encryption algorithms used by most ransomware are internationally recognized standard algorithms. The characteristic of this encryption method is that as long as the encryption key is long enough, it may take hundreds of thousands of years for ordinary computers to crack, and the cracking cost is extremely high. Usually, it is impossible to decrypt the recovered files without paying the ransom.

However, in the following three cases, infected files can be recovered through decryption tools on the Internet.

1) There are loopholes in the design code of ransomware or the encryption algorithm is not implemented correctly.

2) The manufacturer of ransomware voluntarily releases the key or master key.

3) Law enforcement agencies seized servers with keys and shared them.

It should be noted that before using the decryption tool, the encrypted file must be backed up to prevent the data from being recovered due to unsuccessful decryption.

Third, professionals pay the bill.

The ransom of ransomware is generally bitcoin or other digital currency, and the purchase and payment of digital currency is difficult and risky for ordinary users. Specifically, it is mainly reflected in:

1) Statistics show that more than 95% of ransomware attackers come from abroad. Because of the language barrier, misunderstandings are easy to occur in communication, which affects file decryption.

2) digital currency delivery needs to be carried out under a specific trading platform. When you are not familiar with digital currency trading, it is easy to run out of talents.

Therefore, even if the ransom payment can be decrypted, it is not recommended to pay the ransom yourself. It is recommended to contact a professional data recovery company for processing to ensure successful and safe data recovery.