IBM C1000-162 - IBM Security QRadar SIEM V7.5 Analysis

The default setting for the System Notification dashboard is to display 10 notifications, providing a manageable overview of system alerts and issues. Users can adjust this setting to view fewer or more notifications based on their preferences​​.

QRadar supports generating reports in various file formats, including PDF, HTML, XML, and XLS. These formats provide flexibility in how reports are viewed and shared, catering to different needs and preferences for report presentation and analysis​​.

When deleting a generated content report in QRadar, all reports that were generated from the report template are deleted, but the report template itself is retained. This ensures that the structure for generating future reports remains intact, while only the instances of reports generated from that template are removed​​.

QRadar supports different types of content extensions that can be downloaded from the IBM X-Force Exchange portal. Among the supported content extensions are "Custom Functions" and "Offenses." These extensions allow for enhanced functionality and customization within QRadar, providing users with the ability to tailor the system to specific security needs and requirements​​.

IOCs and Reference Sets: Reference sets are specifically designed to store lists of Indicators of Compromise (IOCs) like IP addresses, domain names, file hashes, etc.

Correlation and Matching: QRadar can match events and flows against data in reference sets, triggering rules or alerts when suspicious activity is detected.

When an analyst right-clicks on the Source IP or Destination IP that is associated with an offense at the Offense Summary in QRadar, two of the top-level options are DNS Lookup and WHOIS Lookup1. These options provide additional information about the IP address, such as its domain name (DNS Lookup) and registration information (WHOIS Lookup)1.

Indexing: QRadar indexes certain fields to create a structured way to quickly locate matching data.

Search Optimization: Including indexed fields in queries allows QRadar to leverage pre-built indexes rather than scanning all data.

Filtering: A well-constructed search with indexed fields significantly narrows the dataset, speeding up operations.

In Rule Response for Offense Naming, QRadar provides options to either contribute to or set/replace the name of the associated offenses. These options allow for dynamic naming of offenses based on event name information, facilitating easier identification and categorization of offenses​​.

In IBM Security QRadar SIEM V7.5, to search for all events containing a specific keyword such as "access", an analyst should navigate to the "Log Activity" tab. This section of the QRadar interface is dedicated to viewing and analyzing log data collected from various sources. By running a quick search with the "access" keyword in the Log Activity tab, the analyst can filter out events that contain this term in any part of the log data. This functionality is crucial for identifying specific activities or incidents within the vast amounts of log data QRadar processes, allowing analysts to quickly hone in on relevant information for further investigation or action.