Aside from new tools already mentioned above, Waterbug has also deployed:  A new custom dropper typically used to install Neptun as a service
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: Aside from new tools already mentioned above, Waterbug has also deployed:  A new custom dropper typically used to install Neptun as a service ### Response: .