Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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 make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data. ### Response: T1571.