has maintained persistence by patching legitimate device firmware when it is downloaded including that of WatchGuard devices.
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: has maintained persistence by patching legitimate device firmware when it is downloaded including that of WatchGuard devices. ### Response: T1542.002.