Cybersecurity is an ever-changing landscape. The threats of the future are hard to predict and even harder to prepare for. This paper presents work designed to prepare for the cybersecurity landscape of tomorrow by creating a key support capability for an autonomous cybersecurity testing system. This system is designed to test and prepare critical infrastructure for what the future of cyberattacks looks like. It proposes a new type of attack framework that provides precise and granular attack control and higher perception within a set of infected infrastructure. The proposed attack framework is intelligent, supports the fetching and execution of arbitrary attacks, and has a small memory and network footprint. This framework facilitates autonomous rapid penetration testing as well as the evaluation of where detection systems and procedures are underdeveloped and require further improvement in preparation for rapid autonomous cyber-attacks.