Mike ransomware, found by GrujaRS researcher, is a newly-released malware strain that comes from HildaCrypt ransomware category. Asymmetric/symmetric encryption is used to lock up files and add the .mike appendix next to each file name. For example, if you have a file named flower.png, it will be modified to flower.png.mike. After that, Mike virus will drop a ransom-demanding message named _readme.txt which is the same one used by Djvu ransomware forms. The message urges for $490 as a 50% discount from the original price if the victims are fast to contact the criminals in 72 hours. The firstname.lastname@example.org and email@example.com email addresses are provided for communication purposes.