Review: Group-IB Threat Hunting Framework

Review: Group-IB Threat Hunting Framework

The IT infrastructure of larger organizations is very heterogeneous. They have endpoints, servers and mobile devices running various operating systems and accessing internal systems. On those systems, there is a great number of disparate tools – from open-source databases and web servers to commercial tools used by the organization’s financial department. Furthermore, these applications can now also be deployed on different clouds to achieve further resilience, adding even more complexity to an already intricate infrastructure.

Managing IT infrastructure poses a hard problem, especially in these pandemic times where the workforce tends to work remotely. Building an additional layer of security over this infrastructure is a complicated undertaking and the success of this project will depend on the availability of security personnel and of security monitoring, detection and response tools that can reduce their burden. Unfortunately, due to the complexity of securing infrastructure and the enormous volume of attack vectors, the maturity of organizations’ security monitoring can fall behind.

One of the solutions to this problem is to use technologies that can provide visibility in the organization’s infrastructure, while simultaneously collecting and detecting anomalous events as well as responding to them.

A few years ago, security expert Anton Chuvakin suggested the concept of EDR (endpoint detection and response) in the form of a lightweight endpoint agent that fills the gap between detection and response capabilities available at that time.

EDR has progressed to the concept of XDR – extended detection and response – which represents a merger of defense and response capabilities between various infrastructure layers (network traffic, email, endpoints, cloud instances, shared storage, etc.).

To be successful, XDR should inspect different layers, record and store events, and – based on its advanced analytics feat ..