During   used dead drop resolvers on two separate tech community forums for their  Windows-version backdoor; notably  updated the community forum posts frequently with new dead drop resolvers during the campaign.
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   used dead drop resolvers on two separate tech community forums for their  Windows-version backdoor; notably  updated the community forum posts frequently with new dead drop resolvers during the campaign. ### Response: T1102.001.