According to the NIST Incident Handling Guide, the analysis phase is the next phase of this investigation.
The analysis phase involves examining the evidence and determining the impact, scope, and cause of the incident. The analyst should also identify the attacker's methods, tools, and objectives, as well as any indicators of compromise or malicious activity. The analysis phase may also involve collecting additional data, such as logs, network traffic, or malware samples, to support the investigation. The analysis phase is crucial for developing an effective response and recovery strategy, as well as preventing or mitigating future incidents. References:
* NIST Special Publication 800-61 Revision 2, Computer Security Incident Handling Guide, Section
3.2.4, Analysis (https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-61r2.pdf)
* Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 5: Security Incident Response, Lesson 5.2: Incident Response Process, Topic 5.2.3: Analysis Phase (https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operatio

A vulnerability refers to a weakness or flaw in a system that can be exploited by threats (such as hackers or malware) to gain unauthorized access, cause damage, etc. Threats exploit these vulnerabilities to impact the confidentiality, integrity, or availability of information and systems. Reference: Cisco Cybersecurity Associate

To analyze both payload and header information, an engineer must capture the full packet data. This includes all protocol and payload information for the traffic, allowing for a comprehensive analysis of the data being transmitted5678. Reference:: Full packet capture is a common practice in network monitoring and security, as it provides detailed insights into the data transmitted over the network, including both payload and header information

Explanation
https://explainshell.com/explain?cmd=nmap+-sP

The file that is extractable via TCP stream within Wireshark is the one that has the Content-Type header set to application/octet-stream, which indicates binary data. This header is present in frames 7, 14, and 21, which are part of the same TCP stream. The other frames have different Content-Type headers, such as text/html or image/jpeg, which are not extractable as binary files. Reference:= Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 3: Network Intrusion Analysis, Lesson 3.2: Analyze Data from Common TCP/IP Protocols, Topic 3.2.3: HTTP