This is the third and final post of a three-part series on understanding kernel extension frameworks for Mac systems. In part 1, we reviewed the existing kernel extension frameworks and the information that these frameworks can provide. In part 2 we covered techniques that could be used in kernel to gather even more details on system events. In this post, we will go into the new EndpointSecurity and SystemExtensions frameworks.

The AT&T Cybersecurity Alien Labs team is in charge of writing correlation rules and releasing threat intelligence updates on a day-to-day basis. When researchers in the team find new malware families or threats, we always try to find the best approach to keep our customers protected. In this blog, we will look into some of the differences between signatures and correlation rules.