fudp

fudp is a simple and very easy to use UDP flooding utility, with some nice features, like source ip spoofing, land udp attack and others. Currently works on linux and *BSD systems. By default fudp floods random destination ports on target, but if you want, you can specify destination port with [-p] flag.

Probably this program won't be developed any longer, aside from bug fixing. I will not implement any new functions.

Download

• fudp-0.3.tar.gz
• fudp-0.3.tar.gz.md5

Requirements

C compiler, Linux/BSD

Compilation

To compile, type:

$ make

Binary file is named `fudp`.

Examples

Command used to produce output:

$ tcpdump -qt -i lo -n proto UDP

Here some examples:

$ ./fudp -1 localhost
IP 127.0.0.1.1024 > 127.0.0.1.50695: UDP, length 10

$ ./fudp -1 -p 53 -z 100 localhost
IP 127.0.0.1.1024 > 127.0.0.1.53: UDP, length 100

$ ./fudp -r -1 -p 53 localhost
IP 39.125.210.125.1961 > 127.0.0.1.53: UDP, length 10

$ ./fudp -s 111.111.111.111 -1 -p 53 localhost
IP 111.111.111.111.52371 > 127.0.0.1.53: UDP, length 10

$ ./fudp -l -1 -p 53 localhost
IP 127.0.0.1.53 > 127.0.0.1.53: UDP, length 10

$ ./fudp -r -p 53 localhost
IP 86.84.130.74.54441 > 127.0.0.1.53: UDP, length 10
IP 9.147.165.34.51586 > 127.0.0.1.53: UDP, length 10
IP 36.146.157.113.35088 > 127.0.0.1.53: UDP, length 10
IP 173.0.205.13.49571 > 127.0.0.1.53: UDP, length 10
IP 72.22.187.92.13877 > 127.0.0.1.53: UDP, length 10

Command line arguments

flags:

-1

	send one dgram and exit

-p <port>

	destination port (by default random for each dgram)

-z <size>

	dgram data size (default 10)

-t <time>

	fudp life time (in seconds)

only root:

-r

	random source IP for each dgram

-s

	set source IP

-l

	land attack

Author

Tomasz 'urug' Olszewski <tomek[at]tolszewski.pl>