Difference between revisions of "nmap random source IP spoofing script"
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This script was used to generate firewall logs and represent a wide array of incoming traffic. The "-sS" only sends a syn packet, it doesn't try to complete a handshake. Without it, nmap might try to bind to a socket, which will fail because the source IPs it is trying to bind with are faked. | This script was used to generate firewall logs and represent a wide array of incoming traffic. The "-sS" only sends a syn packet, it doesn't try to complete a handshake. Without it, nmap might try to bind to a socket, which will fail because the source IPs it is trying to bind with are faked. | ||
| − | '''Usage: nmaspoof limit destination''' | + | '''Usage: nmaspoof limit destination'''<br> |
| − | where nmaspoof is the name of the script below | + | where nmaspoof is the name of the script below<br> |
| − | limit is the number of packets / loops of the script you desire | + | limit is the number of packets / loops of the script you desire<br> |
destination is the hostname or IP | destination is the hostname or IP | ||
Revision as of 01:30, 9 May 2013
This script was used to generate firewall logs and represent a wide array of incoming traffic. The "-sS" only sends a syn packet, it doesn't try to complete a handshake. Without it, nmap might try to bind to a socket, which will fail because the source IPs it is trying to bind with are faked.
Usage: nmaspoof limit destination
where nmaspoof is the name of the script below
limit is the number of packets / loops of the script you desire
destination is the hostname or IP
the script...
#!/bin/bash
LIMIT=$1 DSTIP=$2
for i in `seq $LIMIT` do echo "limit = $LIMIT" RNDPORT=`echo $((RANDOM%=65535))` SOURCEIP=`echo $((RANDOM%=223))"."$((RANDOM%=255))"."$((RANDOM%=255))"."$((RANDOM%=254))` echo "running nmap with spoofed source IP $SOURCEIP" nmap -n --max-retries 1 --host-timeout 1 -e eth1 -sS -S $SOURCEIP $DSTIP -Pn -p $RNDPORT done
