Set the
Destination
Port
to
80
.
Denial-of-Service (DoS)
657
On the TCP tab click on the
SYN
Flag
. Enter random data for the payload
of each packet. Set the Nb of packets to 9999. Click the SEND button.
*Note: I have used RafaleX for several years and at times it can appear to be ???buggy???
by not wanting to send packets. The best way I have found to fix this is to
close the program, bring it back up, and try again.
The status bar along the bottom of the application will tell you how many
packets it has sent compared to how many packets it will send.
658 Practical Hacking Techniques and Countermeasures
Click Stop to stop the packet capture and the overall results will be displayed.
Click on the Source IP column to filter the results based on the source IP
of each packet. Fortunately for us, our spoofed packets are listed first.
Denial-of-Service (DoS) 659
By selecting any of your spoofed packets, you can display the details of
the packets in the center section. By dragging the borders of the sections, you
can increase or decrease each section.
In our example, by looking at the center section, we can verify that each
packet was successfully sent with the spoofed source IP address of the target
to the target from port 123 to port 80.
*Note: Because of the law of TCP/IP we know that each packet sent to a computer
with the SYN flag set MUST be responded to by the target. Because we have
set the source to a spoofed address, the target will never receive a response
and will sit and wait (up to 60 seconds) for each packet and therefore
eventually use up the target??™s memory, causing it to lock up.
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