An overview of incident response
This book does not involve defining Incident Response (IR) processes or building an IR plan, although it is important to understand the basic tenets of IR.
In the same way that the Cyber Kill Chain is a process that adversaries use in their execution of campaigns, there is a companion process in dealing with incidents. There are various approaches to the IR processes, but, by and large, they fall into the following six steps:
- Preparation
- Detection and analysis
- Containment
- Eviction
- Recovery
- Lessons learned
Let's look at each of these steps in detail.
Preparation
The preparation phase is used to define the time between active intrusions. This isn't intended to be binary in that if you're performing an IR engagement, you shouldn't still be preparing for other intrusions.
This is the planning phase and includes ensuring that employees (both IT and non-IT) have been properly trained through security awareness...
