has used a utility called CLOSESHAVE that can securely delete a file from the system. They have also removed malware tools or other non-native files used during the intrusion to reduce their footprint or as part of the post-intrusion cleanup process.(Citation: FireEye APT38 Oct 2018)
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 utility called CLOSESHAVE that can securely delete a file from the system. They have also removed malware tools or other non-native files used during the intrusion to reduce their footprint or as part of the post-intrusion cleanup process.(Citation: FireEye APT38 Oct 2018) ### Response: T1070.004.