Adversaries may conduct C2 communications over a non-standard port to bypass proxies and firewalls that have been improperly configured.
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: Adversaries may conduct C2 communications over a non-standard port to bypass proxies and firewalls that have been improperly configured. ### Response: T1065.