During  threat actors used their own web shells as well as those previously placed on target systems by other threat actors for reconnaissance and lateral movement.
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: During  threat actors used their own web shells as well as those previously placed on target systems by other threat actors for reconnaissance and lateral movement. ### Response: T1505.003.