Checks BIOS information in registry

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

Executes dropped EXE

Loads dropped DLL

Checks whether UAC is enabled

Writes to the Master Boot Record (MBR)

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

Suspicious use of NtSetInformationThreadHideFromDebugger