Intrusion Detection and Response

SIEM: Onboarding WIndows Servers

When integrating Windows servers into your Security Information and Event Management (SIEM) platform, selecting the right log sources is crucial for effective threat detection while maintaining optimal system performance. This…

Bharath Narayanasamy

Splunk Splunk Basics

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 Basics Splunk

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

Threat Detection and Incident Response Intrusion Detection and Response DETECT

Snort 101 (Part 01)

Intrusion 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…

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 Threat Detection and Incident Response

(TryHackMe) Servidae: Log Analysis in ELK

Link to the TryHackMe Room; https://tryhackme.com/r/room/servidae Room Objectives: Get familiar with the Elastic (ELK) Stack and its components. Understand the significance of log data analysis in detecting and investigating security…

Bharath Narayanasamy

DETECT Threat Hunting SOC Analyst

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 Detection and Incident Response Splunk Investigating with Splunk

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