Proactive investigation (threat hunting)

Many organizations are already using proactive threat detection via threat hunting. Sometimes, members of the Blue Team will be selected to be threat hunters and their primary goal is to identify indications of attack (IoAs) and indications of compromise (IoCs) even before the system triggers a potential alert. This is extremely useful because it enables organizations to be ahead of the curve by being proactive. The threat hunters will usually leverage the data located in the SIEM platform to start querying for evidence of compromise.

Microsoft Sentinel has a dashboard dedicated to threat hunters, which is called the Hunting page, as shown in the following example:

Figure 14.18: The Hunting page, a threat hunters dashboard

As you can see on this dashboard, there are multiple built-in queries available for different scenarios. Each query is customized for a specific set of data sources and is mapped to the MITRE ATT&CK framework...