has used environment variables and standard input (stdin) to obfuscate command-line arguments.  also obfuscates malicious macros delivered as payloads.(Citation: FireEye Obfuscation June 2017)(Citation: FireEye Know Your Enemy FIN8 Aug 2016)
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 used environment variables and standard input (stdin) to obfuscate command-line arguments.  also obfuscates malicious macros delivered as payloads.(Citation: FireEye Obfuscation June 2017)(Citation: FireEye Know Your Enemy FIN8 Aug 2016) ### Response: T1027.010.