uses steganography to hide backdoors in PNG files which are also encrypted using the Tiny Encryption Algorithm (TEA). 
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: uses steganography to hide backdoors in PNG files which are also encrypted using the Tiny Encryption Algorithm (TEA).  ### Response: T1027.003.