Python for Network Forensics 5.2: Port Enumeration

The video tutorial covers the creation of a Python-based port scanner, explaining the basics of port scanning and common ports. It guides viewers through building a dynamic port scanner that accepts user inputs for scanning specific port ranges. The tutorial details the development of the scanning function using Python's socket module and demonstrates testing the scanner on a Metasploitable VM to identify open ports and potential attack vectors.

What is the primary purpose of a port scanner in the threat lifecycle?

• To monitor network bandwidth

• To close unused ports

• To identify open ports for potential exploitation

• To encrypt network traffic

Which port is commonly used for HTTP traffic?

• 21

• 80

• 443

• 22

What is the main advantage of using dynamic arguments in a port scanner?

• It allows scanning of a fixed number of ports

• It enables scanning of multiple ports specified by the user

• It increases the speed of the scan

• It reduces the complexity of the code

How does the Python port scanner handle a range of ports?

• By hardcoding each port

• By using list comprehensions and splitting strings

• By using a while loop

• By using a for loop

What is the purpose of the underscore in Python function names?

• To improve readability

• To denote a private function

• To indicate a public function

• To separate words in a function name

What type of socket is used for IP connections in the port scanner?

• AF_INET

• AF_UNIX

• SOCK_DGRAM

• SOCK_RAW

What does a result of zero indicate when checking a port?

• The port is closed

• The port is open

• The port is filtered

• The port is unreachable

What is the default behavior if no specific ports are provided to the scanner?

• Do not scan any ports

• Scan only port 80

• Scan the top 1025 ports

• Scan all ports

What is the significance of identifying open ports on a Metasploitable VM?

• To identify potential attack vectors

• To close unnecessary ports

• To update the system

• To improve system performance

What is the next step after identifying open ports in a security assessment?

• Encrypt all data

• Exploit identified vulnerabilities

• Close all open ports

• Reboot the system