developed    and ;  and  were tailored to be incorporated into SolarWind's Orion software library.(Citation: FireEye SUNBURST Backdoor December 2020)(Citation: CrowdStrike SUNSPOT Implant January 2021)
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: developed    and ;  and  were tailored to be incorporated into SolarWind's Orion software library.(Citation: FireEye SUNBURST Backdoor December 2020)(Citation: CrowdStrike SUNSPOT Implant January 2021) ### Response: T1587.001.