has implemented a fallback mechanism to begin using a DGA when the attacker hasn't connected to the infected system for three days.
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 implemented a fallback mechanism to begin using a DGA when the attacker hasn't connected to the infected system for three days. ### Response: T1008.