Azure Sentinel: How?
This post is to summarzie the basic knowledge you can start to use Azure Sentinel as fast as possible.
Sentinel Workspace, Price and Roles
- https://blog.51sec.org/2023/10/azure-sentinel-101.html
- https://azure.microsoft.com/en-ca/pricing/details/microsoft-sentinel/
Tier | Microsoft Sentinel Price | Effective Per GB Price1 | Savings Over Pay-As-You-Go |
---|---|---|---|
Pay-As-You-Go | $6.95 per GB-ingested | $6.95 per GB-ingested | N/A |
100 GB per day | $456.74 per day | $4.57 per GB | 34% |
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Microsoft Sentinel Reader can view data, incidents, workbooks, and other Microsoft Sentinel resources.
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Microsoft Sentinel Responder can, in addition to the above, manage incidents (assign, dismiss, etc.).
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Microsoft Sentinel Contributor can, in addition to the above, install and update solutions from content hub, create and edit workbooks, analytics rules, and other Microsoft Sentinel resources.
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Microsoft Sentinel Playbook Operator can list, view, and manually run playbooks.
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Microsoft Sentinel Automation Contributor allows Microsoft Sentinel to add playbooks to automation rules. It isn't meant for user accounts.
Log Retention
Diagram
Note: https://techcommunity.microsoft.com/t5/microsoft-sentinel-blog/best-practices-for-common-event-format-cef-collection-in-azure/ba-p/969990
Content Hub & Data Connectors
- Azure Activity
- Network Session Essential
- Azure Active Directory
- Common Event Format
- WIndows Security Events
Microsoft Sysmon For Linux
Common Event Format (CEF) via AMA (Azure Monitor Agent)
Microsoft Sentinel Training Lab Solution
This solution ingests pre-recorded data into your Microsoft Sentinel workspace and enables several artifacts to simulate scenarios that showcase various Microsoft Sentinel features. The size of the ingested data is around ~20 MBs, so you will see no cost related to ingestion. Pre-recorded data will land in the following custom log tables: SecurityEvent_CL, SigninLogs_CL, OfficeActivity_CL, AzureActivity_CL, Cisco_Umbrella_dns_CL.
Training guide: https://github.com/Azure/Azure-Sentinel/tree/master/Solutions/Training/Azure-Sentinel-Training-Lab
Threat Intelligence
Install Threat Intelligence from Content Hub
Open Connector Page from Connector - Threat Intelligence - TAXII
Get free threat intelligence service from https://pulsedive.com/
api root:https://pulsedive.com/taxii2/api
Automation
Analytics Rules
Show Table Contents
KQL - Kusto Query Language
You can practice Kusto Query Language statements - including the ones in this article - in a Log Analytics demo environment in the Azure portal. There is no charge to use this practice environment, but you do need an Azure account to access it.
Videos
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