has used a custom decryption routine which pulls key and salt values from other artifacts such as a WMI filter or  to decode encrypted PowerShell payloads.
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 a custom decryption routine which pulls key and salt values from other artifacts such as a WMI filter or  to decode encrypted PowerShell payloads. ### Response: T1140.