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#CI SHENANIGANS OPLC UPDATE#
#CI SHENANIGANS OPLC CODE#
#CI SHENANIGANS OPLC SERIES#
#CI SHENANIGANS OPLC FREE#

Just like all responses are associated with Analytic Stories via tags as well, all tags are expressed in a key/value format. For example, detections are associated with Analytic Stories via the tag analytic_story.

#CI SHENANIGANS OPLC FREE#

lookups/: Implements Splunk’s lookup, usually to provide a list of static values like commonly used ransomware extensions.įeel free to change, add, remove any of these parts 🧩 they are what makeup content! Note that they are all loosely coupled via tagging.More on how macros are used to customize content below. macros/: Implements Splunk’s search macros, shortcuts to commonly used search patterns like sysmon source type.dashboards/: JSON definitions of Mission Control dashboards, to be used as a response task.It is specifically useful for collecting data on a system before running your detection on the collected data. baselines/: Searches that must be executed before a detection runs.response_tasks/: Individual steps in responses that help the user investigate via a Splunk search, automate via a phantom playbook, and visualize via dashboards threats.responses/: Incident Response Playbooks/Workflow for responding to a specific Use Case or Threat.deployments/: Configuration for the schedule and alert action for all content.stories/: All Analytic Stories that are group detections or also known as Use Cases.detections/: Contains all 209 detection searches to-date and growing.The most important parts 🧩 of security-content are: pre-commit-config.yaml to implement checks for common mistakes like correct YAML, JSON, and requirements.txt typos among other things during commits. The security-content uses pre-commit hooks which are configured by the.

gitignore are various files used by Github to track changes locally, the configuration of the project and other things. dependabot This contains the configuration for dependabot, a tool that keeps dependencies up-to-date for open source projects. We will come back to this later in the Testing portion of the guide. circleci contains the CI configuration files. Below is a printout of all the files and directories under the folder security-content/: This is a good time to explain the various parts that create security-content that you can customize.

#CI SHENANIGANS OPLC CODE#

Git clone specific Github URL is displayed by clicking on the code button in your fork of security-content as seen below: In the following examples, I will be using the git command-line tool, but there are various amazing IDEs and UIs out there that work just as great. The first step towards customizing the project is to clone it locally so you can start editing. Once you have a personal fork of the content, you can start customizing it! Customizing Security-Content 🏗 If you can, more information on forking Github projects, here. To get a copy/fork of security-content simply visit the Github page and click on the fork button as shown below: The Threat Research Team open-sourced the project a while back in October 2019, but it has been free for a long time as an extension of Splunk’s Enterprise Security SIEM called ES Content Update. If you are not familiar with security-content, it is where all of our detections live. To get started, you need your own private copy of Splunk’s security-content.

Run all of these steps automatically on every PR via Continuous Integration (CI).

Test each detection committed using the Attack Range.

Package these configuration files into your very own Splunk App for distribution.

Convert the detections into Splunk configuration files.

Customize and add detections to your own private fork of security-content.

If we visualize the workflow to follow for detection engineering, it looks something like this:Īt the end of this guide you will have a clear understanding of how to:

#CI SHENANIGANS OPLC SERIES#

I would like to share with you today a 3-part series that includes a step-by-step walkthrough of using these projects to do detection development, continuous testing, and deployment as a workflow in your security operation center. Also, we have improved the Attack Range project to allow us to test detections described as test unit files.

#CI SHENANIGANS OPLC UPDATE#

We have kept busy by shipping new detections under security-content (via Splunk ES Content Update and our API). It's been a while since I've had the opportunity to take a break, come up for air, and write a blog for some of the amazing work the Splunk Threat Research team has done.