Ransom.NightSky is Malwarebytes’ detection name for a family of highly targeted ransomware.
Night Sky will append the .nightsky extension to encrypted file names. On an affected system there will be a ransom note named NightSkyReadMe.hta in each folder.
Type and source of infection
Ransomware is a category of malware that holds files or systems hostage for ransom. At the moment of writing the initial breach method is unknown, but it is clear that the ransomware program is especially created for every victim.
How to remove Ransom.NightSky with the Malwarebytes Nebula console
You can use the Malwarebytes Anti-Malware Nebula console to scan endpoints.
Nebula endpoint tasks menu
Choose the Scan + Quarantine option. Afterwards you can check the Detections page to see which threats were found.
On the Quarantine page you can see which threats were quarantined and restore them if necessary.
All component/technology detections are passed to the remediation engine for complete removal from infected systems. This industry leading technology uses patented techniques in identifying all cohorts or associated files for a single threat and removes them all together to prevent malware from resuscitating itself. If you are using Malwarebytes Ransomware Rollback technology, it allows you to wind back the clock to negate the impact of ransomware by leveraging just-in-time backups.