Answer: Network Enumerator or Scanner
Explanation: Network Enumerator or Scanner is a computer  software program in which user names, information, machine names,  network services resources can be extracted. Hackers make connections to target networks,  When there is a lag or vulnerability of such targeted networks, the hacker receives signals and scanning through the  remote network hosts , can be able to gain access to information and use for malicious acts such as  exploitation.