My MongoDB has been extorted by a kraken ransomware virus
Yesterday my database (MongoDB) had been deleted with a message:
"_id" : ObjectId("5871ed160c474c47dc9f3e80"),
"Info" : "Your DB is Backed up at our servers, to restore send 0.1 BTC to the Bitcoin Address then send an email with your server ip",
"Bitcoin Address" : "1J5ADzFv1gx3fsUPUY1AWktuJ6DF9P6hiF",
"Email" : "email@example.com"
And this morning, my restored database has been deleted one again. What can I do now? Please give some advice for this case.