Ryuk is a ransomware that uses a combination of public and symmetric-key cryptography to encrypt files on the host computer.
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: Ryuk is a ransomware that uses a combination of public and symmetric-key cryptography to encrypt files on the host computer. ### Response: T1486.