Splunk – NetwerkLABS

Data Manipulation in Splunk: PART II

Event Boundaries Event breaking in Splunk refers to breaking raw data into individual events based on specified boundaries. Splunk uses event-breaking rules to identify where one event ends, and the next begins. In the…

Bharath Narayanasamy

Splunk Splunk Basics

Data Manipulation in Splunk: PART I

Splunk Log Parsing and Transformation Configuration Splunk needs to be properly configured to parse and transform the logs appropriately. Some of the issues being highlighted are: Event Breaking: Ensure Splunk…

Bharath Narayanasamy

Threat Hunting SOC Analyst Splunk

Regular Expressions

Regular Expressions: Charsets Searching for Specific Strings Use grep 'string' <file> to search for an exact match. To find patterns rather than exact strings, Regular Expressions (regex) are used. Charsets…

Bharath Narayanasamy

Splunk Exploring SPL

Splunk SIEM: Search Processing Language (SPL) Basics

Splunk Search Processing Language comprises of multiple functions, operators and commands that are used together to form a simple to complex search and get the desired results from the ingested…

Bharath Narayanasamy

Splunk Splunk Basics

Ship OPNSense Firewall Logs To Splunk SIEM

Shipping OPNsense firewall logs to Splunk centralizes log management, allowing for seamless consolidation with other network and system logs. This integration enhances visibility into network traffic, enabling the identification of…

Bharath Narayanasamy

Threat Hunting SOC Analyst Intrusion Detection and Response

Log Analysis: Basics

Understanding Logs in Infrastructure Systems Logs and Their Role Logs are time-sequenced messages recording events within a system, device, or application. Essential for insights into the inner workings of infrastructure…

Bharath Narayanasamy

Threat Hunting SOC Analyst Threat Detection and Incident Response

Splunk SIEM: Exploring SPL

Splunk Search & Reporting App Overview The Search & Reporting App is the primary interface on Splunk's Home page used for searching and analyzing data. This app provides several essential…

Bharath Narayanasamy

DETECT Threat Hunting Threat Detection and Incident Response

Useful Windows Event IDs

Windows System Logs Event ID 1074 (System Shutdown/Restart): This event log indicates when and why the system was shut down or restarted. By monitoring these events, you can determine if there…

Bharath Narayanasamy

Splunk

Splunk SPL 101

Bharath Narayanasamy

Splunk Splunk Basics Investigating with Splunk

Splunk: SPL Cheat Sheet for SOC Analysts

Splunk Cheat Sheet Query to identify failed login attempts: #Query to identify failed login attempts: sourcetype=auth* "authentication failure" | stats count by user | sort -count Query to identify privilege…

Bharath Narayanasamy