Data Manipulation in Splunk: PART II

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

Views: 8Event 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

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

Views: 10Splunk 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

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

Views: 6Regular 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

Snort 101 (Part 01)

This entry is part 2 of 4 in the series Instrusion Detection and Prevention

Views: 31Intrusion Detection System (IDS) IDS is a passive monitoring solution for detecting possible malicious activities/patterns, abnormal incidents, and policy violations. It is responsible for generating alerts for each suspicious event.  There are two main types of IDS systems; Intrusion Prevention System (IPS) IPS is an active protecting solution for preventing possible malicious activities/patterns, abnormal incidents, and policy violations. … Read more

Splunk SIEM: Search Processing Language (SPL) Basics

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

Views: 91Splunk 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

Views: 85Shipping 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

(TryHackMe) Servidae: Log Analysis in ELK

This entry is part 1 of 3 in the series TryHackMe

Views: 346Link to the TryHackMe Room; https://tryhackme.com/r/room/servidae Room Objectives: In this room, we will analyze the log data from a compromised workstation using the Kibana interface. Within this room’s tasks, we will explore the components of the Elastic (ELK) Stack and gain insights into the various search and filter functions available in Kibana. Our ultimate … Read more

Log Analysis: Basics

This entry is part 17 of 22 in the series Threat Detection Engineering

Views: 46Understanding 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

This entry is part 16 of 22 in the series Threat Detection Engineering

Views: 21Splunk 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

Threat Intelligence with MISP: Part 1 – Setting up MISP with Docker

This entry is part 15 of 22 in the series Threat Detection Engineering

Views: 281Step-by-Step Guide to Install MISP Using Docker on Ubuntu In this guide, we will walk through the steps to install the MISP (Malware Information Sharing Platform) using Docker on an Ubuntu server. Prerequisites Before we begin, make sure your system meets the following requirements: Step 1: Update Your Server and Install Docker First, ensure … Read more