Checks computer location settings

Looks up country code configured in the registry, likely geofence.

Loads dropped DLL

Enumerates connected drives

Attempts to read the root path of hard drives other than the default C: drive.

Maps connected drives based on registry

Disk information is often read in order to detect sandboxing environments.

Writes to the Master Boot Record (MBR)

Bootkits write to the MBR to gain persistence at a level below the operating system.