The OpenCA Project is a collaborative effort to develop a robust, full-featured and Open Source out-of-the-box Certification Authority implementing the most used protocols with full-strength cryptography world-wide. OpenCA is based on many Open-Source Projects. Among the supported software is OpenLDAP, OpenSSL, Apache Project, Apache mod_ssl.

Malware Check Tool is a python script that detects malicious files via checking md5 hashes from an offline set or via the virustotal site. It has http proxy support and an update feature.

Hyenae is a highly flexible and platform independent network packet generator. It allows you to reproduce low level Ethernet attack scenarios (such as MITM, DoS, and DDoS) to reveal potential security vulnerabilities of your network. Besides smart wildcard-based address randomization, a highly customizable packet generation control, and an interactive attack assistant, Hyenae comes with a clusterable remote daemon for setting up distributed attack networks.

Joomla web scanning perl script that gets the version, components and shows possible bugs.

The openscap project is a set of open source libraries that support the SCAP (Security Content Automation Protocol) set of standards from NIST. It supports CPE, CCE, CVE, and CVSS.