Please read the following post and learn more.
What is keybtc@inbox_com?
keybtc@inbox_com is a tricky virus which is created by cyber criminals to make illegal money by using this trick to encrypt the files stored in the target computer and ask for a ransom. It is in fact is a kind of malware with adware capabilities to take over your web browser and pop up ransom notes to inform you that your files are encrypt and you have to pay for the ransom to get them back.
