During the   used dynamic DNS resolution to construct and resolve to randomly-generated subdomains for C2. 
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: During the   used dynamic DNS resolution to construct and resolve to randomly-generated subdomains for C2.  ### Response: T1568.