surveys a system upon check-in to discover active local network connections using the netstat -an net use net file and net session commands.(Citation: Kaspersky Turla)(Citation: ESET ComRAT May 2020)  RPC backdoors have also enumerated the IPv4 TCP connection table via the GetTcpTable2 API call.
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: surveys a system upon check-in to discover active local network connections using the netstat -an net use net file and net session commands.(Citation: Kaspersky Turla)(Citation: ESET ComRAT May 2020)  RPC backdoors have also enumerated the IPv4 TCP connection table via the GetTcpTable2 API call. ### Response: T1049.