Learning Ransomware Response & Recovery

Chapter 16. Post-Mortem Analysis

The ransomware attack is over; the floodwaters have receded, and your body has started replenishing its supply of cortisol. The systems are rebuilt, and all the critical data has been restored, operations are back online, and we’ve come down from DEFCON 1¹ to an improved state of normal operational readiness and awareness. But the work isn’t done. The post-mortem analysis phase is a critical step in ensuring your organization rises up from the ashes stronger, more resilient, and better prepared for future threats—like a phoenix, you have been transformed. This chapter focuses on the process of conducting a thorough post-mortem analysis of a ransomware attack, with an emphasis on documenting what happened, identifying lessons learned, updating your incident response plan (IRP), and enhancing your monitoring and response capabilities. By systematically analyzing the attack, your organization can transform a painful experience into an opportunity for growth and improvement. We’ll explore practical steps, real-world examples, and actionable recommendations to help your organization not only recover but also benefit from the aftermath of a ransomware incident. Many organizations miss the post-mortem analysis step—to their detriment.

One final note about our companion site, StopRansomware.com. It’s a great place to get template documents, like the example given later in this chapter.

The Importance of Post-Mortem Analysis

A ransomware attack sucks ...