Some  components use Twitter to initially obtain the address of a C2 server or as a backup if no hard-coded C2 server responds.(Citation: F-Secure The Dukes)(Citation: Securelist MiniDuke Feb 2013)
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: Some  components use Twitter to initially obtain the address of a C2 server or as a backup if no hard-coded C2 server responds.(Citation: F-Secure The Dukes)(Citation: Securelist MiniDuke Feb 2013) ### Response: T1102.001.