appends a file signature header (randomly selected from six file types) to encrypted data prior to upload or download.
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: appends a file signature header (randomly selected from six file types) to encrypted data prior to upload or download. ### Response: T1027.