[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [installBackdoor](./bitburner.singularity.installbackdoor.md) ## Singularity.installBackdoor() method Run the backdoor command in the terminal. Signature: ```typescript installBackdoor(): Promise; ``` Returns: Promise<void> Promise waiting for the installation to finish. ## Remarks RAM cost: 2 GB \* 16/4/1