Pirana is an exploitation framework that tests the security of a email content filter. By means of a vulnerability database, the content filter to be tested will be bombarded by various emails containing a malicious payload intended to compromise the computing platform. PIRANA’s goal is to test whether or not any vulnerability exists on the [...]

A netmask is a 32-bit mask used to divide an IP address into subnets and specify the networks available hosts. In a netmask, two bits are always automatically assigned. For example, in 255.255.225.0, “0″ is the assigned network address; and in 255.255.255.255, “255″ is the assigned broadcast address. The 0 and 255 are always assigned [...]

Netenum can be used to produce lists of hosts for other programs. It’s not as powerful as other ping-sweep tools, but it’s simple. When giving a timeout, it uses ICMP echo request to find available hosts. If you don’t supply a timeout, it just prints an IP address per line, so you can use them [...]

Itrace is a program that implements traceroute(1) functionality using ICMP echo request packets. Therefore, it looks like you are just pinging your target while you traceroute there. It often helps tracing behind firewalls.
Because backtrack running under virtual machine in virtualbox, I couldn’t run this under ubuntu installation.
command: itrace -i eth1 -d yahoo.com
eth1 being your ethernet [...]