(Citation: MRWLabs Office Persistence Add-ins)(Citation: FireEye Mail CDS 2018)

Add-ins can be used to obtain persistence because they can be set to execute code when an Office application starts.
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: (Citation: MRWLabs Office Persistence Add-ins)(Citation: FireEye Mail CDS 2018)

Add-ins can be used to obtain persistence because they can be set to execute code when an Office application starts. ### Response: T1137.006.