Splunk

Windows Security Log Quick Reference

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This entry is part 20 of 25 in the series Threat Detection Engineering

Views: 3🛡️ For Cybersecurity Defensive Operations and IR/Threat Hunting 🔐 Authentication Events 🗝️ Account Management Events 📂 Object Access Events ✅ Note: Requires enabling object auditing via GPO and SACLs. 🧰 Privilege Use and Logon Types PRO Tip: Use Logon Type + Event 4624/4625 to spot RDP logins, scheduled tasks, or lateral movement attempts. ⚙️ … Read more

Data Manipulation in Splunk: PART II

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This entry is part 10 of 4 in the series Splunk 101

Views: 22Event 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 PART I of this series, we have created a TestApp which is placed at /opt/splunk/etc/apps/TestApp/. Please follow this link to read the PART I article. … Read more

Data Manipulation in Splunk: PART I

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This entry is part 9 of 4 in the series Splunk 101

Views: 31Splunk 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: Splunk Data Parsing Guide Data parsing in Splunk involves extracting relevant fields and transforming the data into a structured format for efficient analysis. Step 1: Understand the Data … Read more

Regular Expressions

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This entry is part 8 of 4 in the series Splunk 101

Views: 10Regular Expressions: Charsets Searching for Specific Strings Charsets in Regex Using Ranges Matching and Excluding Patterns Important Notes Regular Expressions: Wildcards and Optional Characters Wildcard Matching (. Dot) Optional Characters (? Question Mark) Matching a Literal Dot (\.) Regular Expressions: Line Anchors and Grouping Line Anchors Important Note: Grouping and Either/Or (|) Repeating Groups … Read more

Splunk SIEM: Search Processing Language (SPL) Basics

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This entry is part 7 of 4 in the series Splunk 101

Views: 133Splunk 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 logs. Main components of SPL Search Field Operators Comparison Operators These operators are used to compare the values against the fields. Field Name Operator … Read more

 Ship OPNSense Firewall Logs To Splunk SIEM

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Views: 185Shipping 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 threats like port scans, malware communication, or brute force attacks. By correlating OPNsense logs with logs from other sources, organizations can perform faster root … Read more

Log Analysis: Basics

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This entry is part 17 of 25 in the series Threat Detection Engineering

Views: 79Understanding Logs in Infrastructure Systems Logs and Their Role Log Analysis What Are Logs? Definition Log Entry Components Sample Log Analysis Importance of Logs 1. System Troubleshooting 2. Cybersecurity Incident Response 3. Threat Hunting 4. Compliance Types of Logs in Computing Environments Integrative Analysis Data Visualization Data visualization tools, such as Kibana (of the … Read more

Splunk SIEM: Exploring SPL

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This entry is part 16 of 25 in the series Threat Detection Engineering

Views: 34Splunk 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 functionalities to enhance the search experience for analysts. Search & Reporting App is the default interface used to search and analyze the data on the Splunk Home … Read more