checked that HKU\SOFTWARE\Microsoft\CTF existed before decoding its embedded payload.(Citation: FireEye SUNBURST Backdoor December 2020) 
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: checked that HKU\SOFTWARE\Microsoft\CTF existed before decoding its embedded payload.(Citation: FireEye SUNBURST Backdoor December 2020)  ### Response: T1012.