Ethical Hacking: Evading Ids, Firewalls, And Honeypots [author] Videos Review
But the firewall logs spikes. Alex pivots: .
Setting: A red-team engagement for a financial firm. Goal: reach the internal database server without triggering alerts.
Alex notices port 443 allows ICMP tunneling (misconfigured firewall rule allowing ICMP echo replies). Uses ptunnel to encapsulate TCP over ICMP. Firewall sees ping packets – no alert. 2. IDS/IPS Evasion – The Web App Gateway Inside the DMZ, an IDS sniffs traffic. Alex’s ICMP tunnel reaches a vulnerable web server. A simple curl request for /cgi-bin/test.cgi?cmd=ls triggers a signature (known attack pattern). But the firewall logs spikes
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).
POST /upload HTTP/1.1 Content-Type: multipart/form-data; boundary=xxx --xxx Content-Disposition: form-data; name="data" $(echo 'cat /etc/shadow' | base64) Goal: reach the internal database server without triggering
nmap -sV --script=honeypot-detection target Confirmed: it’s a (SSH).
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. Firewall sees ping packets – no alert
Alex uses fragmentation and decoy scans :