Checks BIOS information in registry

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

Executes dropped EXE

Themida packer

Detects Themida, an advanced Windows software protection system.

Checks whether UAC is enabled

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 NtSetInformationThreadHideFromDebugger