Maltego is an open source intelligence and forensics application. It allows for the mining and gathering of information as well as the representation of this information in a meaningful way.
Coupled with its graphing libraries, Maltego, allows you to identify key relationships between information and identify previously unknown relationships between them. It is a must-have tool [...]

Whilst reading an article the other day I saw this mentioned and realised I haven’t written about this yet either, although I have written about the similar tool Goolag.
What is Gooscan?
Gooscan is a tool that automates queries against Google search appliances, but with a twist. These particular queries are designed to find potential vulnerabilities on [...]

Web-Harvest is Open Source Web Data Extraction tool written in Java. It offers a way to collect desired Web pages and extract useful data from them. In order to do that, it leverages well established techniques and technologies for text/xml manipulation such as XSLT, XQuery and Regular Expressions. Web-Harvest mainly focuses on HTML/XML based [...]

The first stage of penetration testing is usually passive information gathering and enumeration (active information gathering). This is where tools like dnsenum come in, the purpose of DNSenum is to gather as much information as possible about a domain.

The program currently performs the following operations:

Get the host’s addresse (A record).
Get the namservers (threaded).

Get the MX [...]