Building Detection Rules with Splunk SPL

Overview

Splunk Search Processing Language (SPL) is the primary query language used in Splunk Enterprise Security for building correlation searches that detect suspicious events and patterns. A well-crafted detection rule aggregates, correlates, and enriches security events to generate actionable notable events for SOC analysts. Enterprise SIEMs on average cover only 21% of MITRE ATT&CK techniques, making skilled SPL rule writing essential for closing detection gaps.

When to Use

• When deploying or configuring building detection rule with splunk spl capabilities in your environment
• When establishing security controls aligned to compliance requirements
• When building or improving security architecture for this domain
• When conducting security assessments that require this implementation

Prerequisites

• Splunk Enterprise Security (ES) deployed and configured
• Access to Splunk Search & Reporting app with appropriate roles
• Understanding of Common Information Model (CIM) data models