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Bharath Narayanasamy 
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
Views: 10 Overview Users Machines Security Groups Security Group Description Domain Admins Full control over the domain. Server Operators Can manage Domain Controllers but not admin groups. Backup Operators Can access any file for backup purposes. Account Operators Can create/modify user accounts. Domain Users Includes all user accounts. Domain Computers Includes all machines in the … Read more
Views: 17What is SimpleRisk CORE (Community Edition)? SimpleRisk CORE (Community Edition) is an open-source Governance, Risk, and Compliance (GRC) tool designed to help organizations identify, assess, and manage risks effectively. It provides a structured framework for risk tracking, mitigation planning, and reporting, making it an excellent choice for small to medium businesses, startups, and cybersecurity … Read more
Views: 13Core Concepts The process of imaging a disk starts by identifying the target drive, preparing it for imaging, and then creating the image file which is later verified for integrity. This needs to be performed in an environment that allows us to perform these tasks and also ensures the process is properly logged. Each … Read more
Views: 5Identifying Hosts When investigating a compromise or malware infection activity, a security analyst should know how to identify the hosts on the network apart from IP to MAC address match. One of the best methods is identifying the hosts and users on the network to decide the investigation’s starting point and list the hosts … Read more
Views: 18Introduction to Endpoint Detection and Response (EDR) Endpoint Detection and Response (EDR) is a cybersecurity solution designed to detect, investigate, and respond to threats at the endpoint level. Endpoints include devices like laptops, desktops, servers, and mobile devices that connect to an organization’s network. These are often the primary targets for attackers, making them … Read more
Views: 19Snort Rules Each rule should have a type of action, protocol, source and destination IP, source and destination port and an option. Remember, Snort is in passive mode by default. So most of the time, we will use Snort as an IDS. We will need to start “inline mode” to turn on IPS mode. The Snort rule structure … Read more
Views: 1SNORT in IDS/IPS mode IDS/IPS mode with parameter “-A” There are several alert modes available in snort; Only the “console” and “cmg” parameters provide alert information in the console. It is impossible to identify the difference between the rest of the alert modes via terminal. Differences can be identified by looking at generated logs. IDS/IPS mode with parameter “-A console” … Read more
Views: 90Shipping 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
Views: 350Link 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