Understanding Nmap & Detecting Its Scans 🔍
Learn how Nmap works, differentiate scan types, and analyze packets with Wireshark to catch stealthy scans effectively.

David Bombal
349.3K views • Mar 11, 2022

About this video
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.
// Get Wireshark Certified //
Check out the official training course
📘 GET TRAINING:
https://courses.davidbombal.com/l/pdp/wireshark-certified-analyst-wca-the-complete-hands-on-course?coupon_code=WIRESHARKHACK
Use code "WiresharkHack" to get a $50 discount
🔗 Learn more: https://wireshark.org/certifications
// 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 //
https://www.amazon.com/shop/davidbombal
// SOCIAL //
Discord: https://discord.com/invite/usKSyzb
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
Facebook: https://www.facebook.com/davidbombal.co
TikTok: http://tiktok.com/@davidbombal
YouTube: https://www.youtube.com/davidbombal
//CHRIS GREER //
Udemy course: https://davidbombal.wiki/chriswireshark
LinkedIn: https://www.linkedin.com/in/cgreer/
YouTube: https://www.youtube.com/c/ChrisGreer
Twitter: https://twitter.com/packetpioneer
// SPONSORS //
Interested in sponsoring my videos? Reach out to my team here: sponsors@davidbombal.com
nmap
nmap stealth scan
nmap scan
nmap hacking
nmap scan types
wireshark
wireshark tcp
packet analysis
ccna
cisco ccna
wireshark nmap
wireshark real world
real world wireshark
Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!
#nmap #wireshark #hacking
// Get Wireshark Certified //
Check out the official training course
📘 GET TRAINING:
https://courses.davidbombal.com/l/pdp/wireshark-certified-analyst-wca-the-complete-hands-on-course?coupon_code=WIRESHARKHACK
Use code "WiresharkHack" to get a $50 discount
🔗 Learn more: https://wireshark.org/certifications
// 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 //
https://www.amazon.com/shop/davidbombal
// SOCIAL //
Discord: https://discord.com/invite/usKSyzb
Twitter: https://www.twitter.com/davidbombal
Instagram: https://www.instagram.com/davidbombal
LinkedIn: https://www.linkedin.com/in/davidbombal
Facebook: https://www.facebook.com/davidbombal.co
TikTok: http://tiktok.com/@davidbombal
YouTube: https://www.youtube.com/davidbombal
//CHRIS GREER //
Udemy course: https://davidbombal.wiki/chriswireshark
LinkedIn: https://www.linkedin.com/in/cgreer/
YouTube: https://www.youtube.com/c/ChrisGreer
Twitter: https://twitter.com/packetpioneer
// SPONSORS //
Interested in sponsoring my videos? Reach out to my team here: sponsors@davidbombal.com
nmap
nmap stealth scan
nmap scan
nmap hacking
nmap scan types
wireshark
wireshark tcp
packet analysis
ccna
cisco ccna
wireshark nmap
wireshark real world
real world wireshark
Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!
#nmap #wireshark #hacking
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Video Information
Views
349.3K
Likes
11.0K
Duration
44:03
Published
Mar 11, 2022
User Reviews
4.8
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