Threat hunting is an essential part of security operations center services and should be incorporated at an early stage. Threat hunting is the art of finding the unknowns in the environment, going beyond traditional detection technologies, such as security information and event management (SIEM), endpoint detection and response (EDR) and others. There are multiple methods to perform hunting, and your team can select the one that fits best based on what you want to accomplish.
What is Threat Hunting?
David Bianco’s Pyramid of Pain shows how threat hunting needs to be executed to ensure threat actors can be detected, identified and isolated before they can disrupt the environment.
David Bianco’s Pyramid of Pain
Where Do You Hunt?
A successful hunt is based on the fertility of the environment. Hunters usually leverage SIEM and EDR tools as the basis for the hunt. They can also use other tools, like packer analyzers, to execute network-based hunts.
However, using SIEM and EDR tools require that all the “crown jewels” in your environment are integrated. This ensures an indicator of attack (IoA) and an indicator of compromise (IoC) can be leveraged for the hunt.
Types of Threat Hunting
Structured hunting. A structured hunt is based on the IoA and tactics, techniques and procedures (TTPs) of an attacker. All hunts are aligned and based on the TTPs of the threat actors. Therefore, the hunter usually is able to identify a threat actor even before the attacker can cause damage to the environment. This type leverages the MITRE Adversary Tactics Techniques and Common Knowledge (ATT&CK) framework using both PRE-ATT&CK and enterprise frameworks.
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