created and modified startup files for persistence.(Citation: FireEye APT41 Aug 2019)(Citation: Group IB APT 41 June 2021)  added a registry key in HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost to establish persistence for Cobalt Strike.
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: created and modified startup files for persistence.(Citation: FireEye APT41 Aug 2019)(Citation: Group IB APT 41 June 2021)  added a registry key in HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost to establish persistence for Cobalt Strike. ### Response: T1547.001.