PIRANA is a SMTP fuzzing and bruteforce exploitation framework that tests the security of a SMTP 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 SMTP server

The Network Situational Awareness group at CERT (CERT/NetSA) has developed and maintains a suite of open source tools for monitoring large-scale networks using flow data.

Today, however I witnessed a Qualys demonstration and I must say I really enjoyed it.
This post is a short review of QualysGuard vulnerability management system

PRIAMOS It is fully automated and very easy to use. First, you will scan the application for vulnerable parameters and then launch the SQL injection attack against selected vulnerable parameter.