has had its code obfuscated in an apparent attempt to make analysis difficult.(Citation: Fortinet Agent Tesla April 2018)  has used the Rijndael symmetric encryption algorithm to encrypt strings.
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 had its code obfuscated in an apparent attempt to make analysis difficult.(Citation: Fortinet Agent Tesla April 2018)  has used the Rijndael symmetric encryption algorithm to encrypt strings. ### Response: T1027.