has used an RSS feed on Livejournal to update a list of encrypted C2 server names.
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 used an RSS feed on Livejournal to update a list of encrypted C2 server names. ### Response: T1102.001.