uses SSL and AES ECB for encrypting C2 communications.(Citation: ESET Zebrocy Nov 2018)(Citation: ESET Zebrocy May 2019) 
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: uses SSL and AES ECB for encrypting C2 communications.(Citation: ESET Zebrocy Nov 2018)(Citation: ESET Zebrocy May 2019)  ### Response: T1573.002.