(Source: Dell SecureWorks) Both the redirect code on the compromised site and the exploit code appear and disappear, indicating that the adversaries add the code when they want to leverage the SWC and remove the code when it is not in use to limit the visibility of their operations
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: (Source: Dell SecureWorks) Both the redirect code on the compromised site and the exploit code appear and disappear, indicating that the adversaries add the code when they want to leverage the SWC and remove the code when it is not in use to limit the visibility of their operations ### Response: T1140.