Open the Properties of the NIC you are using by right-clicking on the
Network Neighborhood and selecting Properties.
118 Practical Hacking Techniques and Countermeasures
Right click on the network card and select Properties. Click Install.
Click on Protocol to highlight it and click Add.
Target Enumeration 119
Click Have Disk.
Click Browse and from the nmapNT\drivers\packet2K directory select
the Packet_2k.inf file.
Click Open.
120 Practical Hacking Techniques and Countermeasures
Click OK.
Click OK to acknowledge that you are installing a new packet driver.
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The driver will install. Click Close.
In this example to execute nmap against a target with the IP of 172.16.1.40
in order to determine the target??™s operating system, type the following:
nmapNT ??“sS ??“p 139 ??“O ??“D 24.24.24.24 172.16.1.40
The ??“sS option instructs nmap to use a TCP SYN stealth port scan. This
option is initiated by default if you are logged in as the root user.
The ??“p 139 option instructs nmap to scan for a specific port, in this
case port 139.
The ??“O option instructs nmap to use TCP/IP fingerprinting to guess
the target operating system.
The ??“D 24.24.24.24 option instructs nmap to use this IP address as a
decoy against the target to attempt to throw anyone off that may be
reviewing the logs, IDS sensors, and so forth.
*Note: The ??“p 139 in the example above can be any port but normally is a port
known to be open on the target so many times port 53 or 80 is used.
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