nmap -f -D RND:10 -Pn target.com Fragmented packets slip past simple firewall reassembly rules. Decoy IPs muddy the source.
Alex, ethical hacker. 1. Firewall Evasion – The First Glance Alex scans the external perimeter. A classic nmap -sS triggers port 80 (HTTP) and 443 (HTTPS) only. Firewall is stateful—drops unsolicited SYN packets to other ports. nmap -f -D RND:10 -Pn target
POST /upload HTTP/1.1 Content-Type: multipart/form-data; boundary=xxx --xxx Content-Disposition: form-data; name="data" $(echo 'cat /etc/shadow' | base64) boundary=xxx --xxx Content-Disposition: form-data
nmap -sV --script=honeypot-detection target Confirmed: it’s a (SSH). nmap -f -D RND:10 -Pn target
The IDS sees base64 data but doesn't decode context. Alex finds an open SMB share named HR_Confidential . Too easy. A glance at file metadata shows creation time = 2 AM (odd). Also, the server responds with Server: Honeyd 1.5c (a telltale).