Implementing A New Microsoft Sentinel Solution (part 1)

By Ashwin Venugopal -

 







To read part 2, please click here
To read part 3, please click here
To read part 4, please click here











Here is an overview of the approaches that can be used in a new Microsoft Sentinel environment.

Project Resourcing

Project Planning

some of the key factors that should be considered during a project planning stage are:
  • Access to log sources and users.
  • Types of log sources (standard data connectors vs required development).
  • Complexity of Azure architecture.
  • Requirement for custom SOAR automation playbooks.
  • Azure cost assessment and optimization.
The following roles are needed for a successful Microsoft sentinel deployment:
  • Project Manager- It is recommended to have an experienced Project Management staff having Project Management Professional (PMP) and Information Technology Infrastructure Library (ITIL) backgrounds, as the stakeholder management requirements are quite broad. 

  • Security Architect- As Microsoft Sentinel environment always contain highly sensitive data, the security architect will take care of the overall security design of the Microsoft Sentinel solution.

  • Cloud Engineer- An organization's Azure Cloud engineer/administrator will look after the resiliency requirements, Azure regions, data residency, tagging or templates needed, etc. 

  • Engineering - System's Owner- In order to obtain smooth data transfer to Microsoft Sentinel, Subject Matter Experts (SMEs) as well as asset owners having administrative ability to provide the samples of logs and configure log-forwarding parameters on each asset, will be required to work with the project team.

  • Engineering - SIEM- They are generally responsible for configuring Microsoft Sentinel along with the Log Analytics, Logic Apps, workbooks, and playbooks and also some of the other high-level tasks.

  • Network Engineer- These resources are used on demand in order to make changes in the firewalls or network infrastructures, so that, the log forwarding from data sources to Azure can be facilitated.

  • Business Analyst- This one provides an Azure cost analysis for each technical requirement and can remodel it further (with the help of SIEM engineer) according to the changes made in the IT environment.  

  • Security Operations- These are required to document the detection, alerting, and threat hunting requirements of the solution, because it is their job as the end consumer of the service to articulate the build requirements. 

  • Developers- They are generally used whenever it is required to obtain data from log sources like SaaS applications and can easily leveraged to great effect by Azure functions. 

  • Compliance Manager- In order to fulfill your company's legal, regulatory, or industry-specific compliance requirements via Microsoft Sentinel, it is mandatory to have an interaction between the core Microsoft Sentinel team and the compliance manager; so that the decisions on the log retention period, custom workbooks, etc. can be made easily.
















To read part 2, please click here
To read part 3, please click here
To read part 4, please click here


























































































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