ATK stands for Attack Tool Kit and is a security scanner / exploit framework that runs on Windows.
The author says "It was first developed to provide a very small and handy tool for Windows to realize fast checks for dedicated vulnerabilities. In the meanwhile it is a combination of security scanner (e.g. Nessus) and exploiting framework (e.g. MetaSploit). The special thing about ATK is that the tool is able to do the work without great interaction.
- Detection and exploiting mode available
- Open-source (GPL) and free available for everyone
- Plugins are written in xml and usually open-source (GPL) too