How Nmap really works // And how to catch it // Stealth scan vs TCP scan // Wireshark analysis

How Nmap really works // And how to catch it // Stealth scan vs TCP scan // Wireshark analysis

Chris and I go deep into what Nmap is actually sending onto the network and how you can find those dodgy packets! We then get into a real world Wireshark discussion on how to find stuff in a sea of packets.

// MENU //
0:00 ▶️ Welcome
2:15 ▶️ What is Nmap?
3:54 ▶️ TCP SYN and TCP connect scans
6:55 ▶️ Wireshark IP Filter
7:42 ▶️ Wireshark TCP Port Filter
7:57 ▶️ Stealth Scan
09:37 ▶️ Why it’s called a stealth scan
11:02 ▶️ Connect() scan
11:50 ▶️ How to identify potential Nmap scans in Wireshark
15:05 ▶️ Wireshark filters to find potential stealth scans
19:08 ▶️ Nmap Port Flag
20:16 ▶️ What makes a TCP connect scan different
22:47 ▶️ What is TCP Conversation Completeness
26:16 ▶️ Wireshark filter to identify potential TCP connect scans
29:06 ▶️ Are devices good enough today to capture huge amounts of data?
31:09 ▶️ Network Traffic Monitoring Device
32:55 ▶️ How to find specific data in huge files
42:27 ▶️ Final tips for beginners in cybersecurity
43:27 ▶️ Topics for future videos

// Wireshark pcap file //
https://davidbombal.wiki/nmapstealth

// Wireshark documentation //
https://www.wireshark.org/docs/wsug_html_chunked/ChAdvTCPAnalysis.html

// MY STUFF //
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// SOCIAL //

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//CHRIS GREER //
LinkedIn: https://www.linkedin.com/in/cgreer/
YouTube: https://www.youtube.com/c/ChrisGreer
Twitter: https://twitter.com/packetpioneer
Pluralsight: TCP Analysis Course: https://davidbombal.wiki/tcpwireshark

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#nmap #wireshark #hacking

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