According to , this vulnerability was patched on March 12, 2019 and we first saw the webshell activity on April 1, 2019.
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: According to , this vulnerability was patched on March 12, 2019 and we first saw the webshell activity on April 1, 2019. ### Response: .