can modify the Linux iptables firewall to enable C2 communication via a stored list of port numbers.(Citation: NCSC Cyclops Blink February 2022)
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: can modify the Linux iptables firewall to enable C2 communication via a stored list of port numbers.(Citation: NCSC Cyclops Blink February 2022) ### Response: T1562.004.