has used code-signing certificates on its malware that are either forged due to weak keys or stolen.  has also stolen certificates and signed backdoors and downloaders with them.(Citation: Kaspersky Darkhotel)
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 code-signing certificates on its malware that are either forged due to weak keys or stolen.  has also stolen certificates and signed backdoors and downloaders with them.(Citation: Kaspersky Darkhotel) ### Response: T1553.002.