has used a passive listener capable of identifying a specific magic value before executing tasking as a secondary command and control (C2) mechanism.
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 a passive listener capable of identifying a specific magic value before executing tasking as a secondary command and control (C2) mechanism. ### Response: T1205.