Summary
- Nmap is a powerful tool for network mapping and penetration testing.
- This tutorial explores advanced tactics to circumvent firewalls and intrusion detection systems (IDS) using Nmap.
- These techniques include altering timing to mimic normal traffic, fragmenting packets to avoid inspection, and spoofing sources to confuse logging.
- Scan ordering and decoys can confuse IDS rate-limiting mechanisms, while custom source ports and raw packet scanning mimic legitimate traffic better.
- Elevating privileges and adjusting timestamps are possible with TTL manipulation and proxy chains.
- Uncommon protocols and data fragmentation at the application layer can also help dodge specific firewall rules.
- While these methods are lawful when authorized, ethical behavior is essential, just like any other powerful tool.
By Muhammad Abdullah Niazi
Original Article