my system attacked by the ransomware malware and all of system files encrypted by the virus and they left the .txt note with ransom of $500 bitcoin currency to provide the tool so recover my all data. i have very important data which is encrypted/locked with extensions .lockbit .roger .pandemic. is there any tool i can recover my data. it is first time i had this type of attack and when i did my research about that they says it is "ransomware" attack.