4/28/2023 0 Comments Osquery company![]() ![]() Note: It is highly beneficial if you’re already familiar with SQL queries. Learning Osquery will be beneficial if you are looking to enter into this field or if you’re already in the field and you’re looking to level up your skills. Cisco: Cisco AMP (Advanced Malware Protection) for endpoints utilize Osquery in Cisco Orbital.Alienvault: The AlienVault agent is based on Osquery.Some of the tools (open-source and commercial) that utilize Osquery are listed below. ![]() Many well-known companies, besides Facebook, either use Osquery, utilize osquery within their tools, and/or look for individuals who know Osquery. Osquery is an open-source tool created by Facebook. With Osquery, Security Analysts, Incident Responders, Threat Hunters, etc., can query an endpoint (or multiple endpoints) using SQL syntax. Osquery can be installed on multiple platforms: Windows, Linux, macOS, and FreeBSD. This is a perfect use case for 1) scheduling a query to monitor for this across your fleet, and 2) creating an alert to notify you when a process is found that doesn’t have a binary on disk.While it’s possible to schedule a query that specifically checks for processes where no binary is on disk (for example, using SELECT name, path, pid FROM processes WHERE on_disk = 0), it can be beneficial to schedule a broader query that retrieves all fields for the processes table, because you can use that data to drive several cases you may want to monitor.In this video walkthrough, we demonstrated incident response and investigation using osquery on Windows and Linux endpoints. These images can be used for testing query results and osquery. If on_disk = 0 for a process, that means the file is no longer on the disk and there may be an issue. This provides a matrix of osquery versions across different (Linux) operating systems. The response from the processes table includes several useful fields, like the name, pid, and path of all running processes on the target systems, as well as whether the process path exists on_disk. You can monitor this using Osquery across Windows, Linux, and Mac systems with a simple query: This can be an indicator of a malicious process, for example, when malware deletes itself after execution to avoid detection. When combined with the Elastic Security solution, security teams are able craft queries that help them to detect threats within their environment, monitor for issues that matter the most to their organization, and then take action when there’s a problem.Īs an example, one issue to monitor is whether any of your systems have processes running where the executable is no longer on disk. Osquery surfaces a broad swath of data about operating systems. When you run live or scheduled queries, the results are automatically stored in an Elasticsearch index and can easily be mapped to the Elastic Common Schema, normalizing your data to a common set of fields to work with the SIEM app and enabling you to easily search, analyze, and visualize data across multiple sources. These capabilities help with real time incident response, threat hunting, and regular monitoring to detect vulnerability or compliance issues. Once that’s added, from Kibana, you can run live queries and schedule recurring queries for those agents to gather data from hundreds of tables across your entire enterprise. When you add the Osquery Manager integration to an Elastic Agent policy, Osquery is deployed to all agents assigned to that policy. How does Osquery Manager work? Osquery is an open source tool that lets you query Operating Systems like a database using SQL. ![]() Included are examples that show how to operationalize the Osquery data with use cases such as building critical security alerts, querying isolated hosts during investigations, and monitoring for anomalous host activities with ML detections. This blog post gives a brief intro to the Osquery Manager integration for Elastic Agent and how it can be used in conjunction with Elastic Security. By collecting Osquery data and combining it with the power of the Elastic Stack, you can greatly expand your endpoint telemetry, enabling enhanced detection and investigation, and improved hunting for vulnerabilities and anomalous activities. With the Elastic 7.16 release, Osquery Manager is now generally available for Elastic Agent, making it easier than ever to deploy and run Osquery across your environments.
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