has dropped a malicious applet into an app's `.../Contents/MacOS/` folder of a previously launched app to bypass Gatekeeper's security checks on first launch apps (prior to macOS 13).
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 dropped a malicious applet into an app's `.../Contents/MacOS/` folder of a previously launched app to bypass Gatekeeper's security checks on first launch apps (prior to macOS 13). ### Response: T1553.001.