Create a Simple SIEM

The video tutorial introduces PowerShell as a powerful automation tool for administrators, especially for managing large networks. It explains the basics of Security Incident and Event Management (SIM) systems, focusing on log collection and analysis. The tutorial covers setting execution policies in PowerShell, using event logs, and advanced log retrieval techniques. It also highlights the use of Get-WinEvent for enhanced performance in accessing logs from remote computers.

What is one of the main advantages of using PowerShell for administrators?

• It is only available on Linux systems.

• It has a graphical user interface.

• It allows for manual data entry.

• It can automate complex operations over large networks.

What is the primary function of a SIM system?

• To manage network bandwidth.

• To collect and correlate logs from various sources.

• To create user accounts.

• To design user interfaces.

How do you start PowerShell as an administrator on Windows 10?

• Double-click the PowerShell icon.

• Right-click the PowerShell app and select 'Run as administrator'.

• Type 'admin' in the search bar.

• Press Ctrl + Alt + Delete.

What does the 'Restricted' execution policy in PowerShell do?

• Prevents any scripts from running.

• Allows only signed scripts to run.

• Allows scripts from the internet to run.

• Allows all scripts to run.

Which command is used to list all event logs in PowerShell?

• Show-Logs

• List-Event

• Get-EventLog -List

• Get-Log

How can you specify a computer name when retrieving event logs?

• Use the -Device parameter.

• Select the computer from a dropdown menu.

• Use the -ComputerName parameter.

• Type the computer name in the search bar.

What is the purpose of exporting log data to a CSV file?

• To send the logs to a printer.

• To perform further analysis using tools like Excel.

• To delete the logs.

• To encrypt the logs.

What is a key advantage of using Get-WinEvent over Get-EventLog?

• It can only retrieve logs from local computers.

• It allows retrieving events from applications and services.

• It is slower but more detailed.

• It does not require administrative privileges.

In PowerShell, what symbol is used to denote a variable?

• &

• $

• %

• #

What is the benefit of using arrays in PowerShell scripts?

• They enable the storage and manipulation of multiple data items.

• They provide real-time data analysis.

• They allow for graphical output.

• They automatically execute scripts.