Microsoft Sentinel: What is it?

Enterprise-wide threat information and intelligent security analytics are provided by Microsoft Sentinel. You may obtain a single solution for attack detection, threat visibility, proactive hunting, and threat response with Microsoft Sentinel.

Microsoft Sentinel gives you a bird’s-eye perspective of the whole organization, reducing the stress caused by more complex assaults, high alert volumes, and lengthy resolution times.

  • Gather data at cloud scale from all users, hardware, software, and infrastructure, both locally and across many clouds.
  • Utilize Microsoft’s analytics and unrivalled threat intelligence to identify threats that were previously unnoticed and reduce false positives.
  • Utilizing years of Microsoft’s efforts in cyber security, investigate risks using artificial intelligence and look for unusual activity at scale.
  • With integrated orchestration and automation of routine processes, react to crises quickly.

Microsoft Sentinel includes well-known Azure services like Logic Apps and Log Analytics out of the box. AI-enhanced Microsoft Sentinel improves your investigation and detection. It allows you to bring your own threat intelligence while also providing Microsoft’s threat intelligence stream.

Utilize data connections to gather data.

You must first establish a connection to your data sources in order to onboard Microsoft Sentinel.

Numerous connections for Microsoft products are pre-installed in Microsoft Sentinel and offer real-time interaction. These connections include, among others:

  • sources from Microsoft, including Office 365, Microsoft Defender for Cloud, and Microsoft Defender for IoT.
  • Several Azure services are available, including Azure Active Directory, Azure Activity, Azure Storage, Azure Key Vault, and Azure Kubernetes.

For non-Microsoft solutions, Microsoft Sentinel provides built-in interfaces to the larger security and application ecosystems. You may link your data sources with Microsoft Sentinel via the standard event format, Syslog, or REST-API.

Screenshot of the data connectors page in Microsoft Sentinel that shows a list of available connectors.

Utilize workbooks to produce interactive reports.

After registering for Microsoft Sentinel, use the interface with Azure Monitor workbooks to keep an eye on your data.

In comparison to Azure Monitor, Microsoft Sentinel displays workbooks differently. However, learning how to construct a worksheet in Azure Monitor could be helpful for you. With Microsoft Sentinel, you can design unique spreadsheets for all of your data. Additionally, Microsoft Sentinel has built-in worksheet templates so that as soon as a data source is connected, you may instantly acquire insights from your data.

Screenshot of workbooks page in Microsoft Sentinel with a list of available workbooks.

Workbooks are designed to help analysts and SOC engineers of all levels see data.

Workbooks don’t require coding expertise and are best utilized for high-level views of Microsoft Sentinel data. However, spreadsheets cannot be integrated with external data.

Alerts and occurrences can be connected using analytics rules.

Microsoft Sentinel employs analytics to link warnings into events, reducing noise and the amount of alerts you need to examine and investigate. Incidents are collections of connected alarms that together point to a potentially dangerous situation that you may look into and address. Use the built-in correlation rules as-is or develop your own correlation rules using them as a model. Additionally, Microsoft Sentinel offers machine learning algorithms that map your network behaviour and then scan all of your resources for abnormalities. By merging low fidelity warnings concerning various entities into prospective high fidelity security events, these algorithms make connections between disparate data points.

Screenshot of the incidents page in Microsoft Sentinel with a list of open incidents.

Utilize playbooks to organize and automate routine tasks.

Playbooks that interact with Azure services and your current tools will automate your routine processes and make security orchestration simpler.

A highly extensible architecture is offered by Microsoft Sentinel’s automation and orchestration solution, enabling scalable automation when new technologies and threats are developed. You may pick from a growing library of pre-built playbooks when using Azure Logic Apps to create playbooks. 200+ connections for services like Azure functions are among them. The connectors let you use any special logic in your code, such as:

  • ServiceNow
  • Jira
  • Zendesk
  • HTTP
  • Microsoft Teams
  • Slack
  • Windows defender ATP
  • Defender for cloud

Utilize Azure Logic Apps to automate your workflows and open a ticket in ServiceNow if a certain alert or issue is triggered, for instance, if you use the ServiceNow ticketing system.

Screenshot of example automated workflow in Azure Logic Apps where an incident can trigger different actions.

Playbooks are designed to automate and streamline operations like data intake, enrichment, investigation, and remediation for SOC engineers and analysts of all levels.

Playbooks don’t require coding skills and perform best with single, repeated activities. The documentation and exchange of evidence, as well as ad hoc or complicated task chains, are not appropriate uses for playbooks.

Look into the size and origin of security risks.

You may learn more about a possible security threat’s breadth and identify its core cause with the use of Microsoft Sentinel’s deep investigation capabilities. To find the source of the danger, you may select an entity on the interactive graph, ask intriguing questions for that entity, and then go further into that entity and its relationships.

Screenshot of an incident investigation that shows an entity and connected entities in an interactive graph.

Utilize built-in queries to look for security issues.

Utilize the robust hunting search-and-query capabilities provided by Microsoft Sentinel, built on the MITRE architecture, to proactively search for security vulnerabilities across the data sources used by your company before an alarm is raised. Depending on your hunting query, create unique detecting rules. Then, send your security incident responders alerts based on those findings.

Make bookmarks while hunting so you may come back to noteworthy incidents later. To let people know about an event, use a bookmark. Or, compile a compelling incident for an inquiry by grouping related incidents.

Screenshot of the hunting page in Microsoft Sentinel that shows a list of available queries.

 

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