has modified the registry key SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System and added the ransom note. 
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: has modified the registry key SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System and added the ransom note.  ### Response: T1112.