![]() You can launch a decoy scan by specifying a specific or random IP address after -D. This address spoofing is only possible if the attacker and the target machine are on the same Ethernet (802.3) network or same WiFi (802.11). You can specify the source MAC address using -spoof-mac SPOOFED_MAC. When you are on the same subnet as the target machine, you would be able to spoof your MAC address as well. It is worth repeating that this scan will be useless if the attacker system cannot monitor the network for responses.Therefore, instead of nmap -S SPOOFED_IP MACHINE_IP, you will need to issue nmap -e NET_INTERFACE -Pn -S SPOOFED_IP MACHINE_IP to tell Nmap explicitly which network interface to use and not to expect to receive a ping reply. ![]() In general, you expect to specify the network interface using -e and to explicitly disable ping scan -Pn. 3) Attacker captures the replies to figure out open ports. 2) Target machine replies to the spoofed IP address as the destination. In brief, scanning with a spoofed IP address is three steps: 1) Attacker sends a packet with a spoofed source IP address to the target machine. Once both are ready, open the terminal on the AttackBox and use Nmap to launch an ACK scan against the target VM. ![]() Launch the AttackBox if you haven’t done that already. After you make sure that you have terminated the VM from Task 2, start the VM for this task. A new port is now allowed by the firewall. The VM received an update to its firewall ruleset. You decided to experiment with a custom TCP scan that has the reset flag set. In TCP Window scan, how many flags are set? As a result, ACK and window scans expose the firewall rules rather than the services. It is important to realize, however, that just because a firewall does not block a certain port does not necessarily mean that a service is listening on that port.įor example, the firewall rules might need to be modified to reflect current service modifications. Finally, it is critical to highlight that the ACK scan and the Window scan were really useful in assisting us in mapping out the firewall rules.
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