A security consultant found open ports on multiple systems, identified running services, and used various scripts to discover possible weaknesses. Which application might the consultant have used?
Wireshark
Netcat
Hydra
Nmap
Network Mapper (Nmap) can scan hosts, detect open ports, and identify service versions. It also supports scripts to probe for additional weaknesses. Netcat is often used for raw network connections rather than service version discovery. Hydra is frequently used for brute-force attempts against authentication services. Wireshark captures and analyzes network traffic rather than focusing on open-port discovery and enumeration.
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