Checks BIOS information in registry

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

Indicator Removal: Clear Windows Event Logs

Clear Windows Event Logs to hide the activity of an intrusion.

Enumerates connected drives

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

Writes to the Master Boot Record (MBR)

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

Drops file in System32 directory

Suspicious use of SetThreadContext