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- Operationalize attack surface reduction rules - Microsoft Defender for . . .
You can query attack surface reduction rule events from the DeviceEvents table in the advanced hunting section of the Microsoft Defender portal For example, the following query shows how to report all the events that have attack surface reduction rules as data source, for the last 30 days
- ASR Rule Inspector: Verify Attack Surface Reduction Rules In Microsoft . . .
Microsoft Defender’s Attack Surface Reduction (ASR) rules are critical for blocking malicious activities, but misconfigurations can leave gaps Roy Klooster’s ASR Rule Inspector PowerShell script validates your ASR rules’ enforcement status and provides a clear overview
- Inspecting Microsoft Defender Attack Surface Reduction Rules
In this article, I want to break down the Defender Attack Surface Rules (ASR rules) and show you what components each rule takes care of and overall, how they can minimize the attack surface
- Defender for Endpoint - Implementing ASR Rules - Nathan McNulty
Unfortunately, we can only query the Azure AD Device ID and not the Object ID that we need to add the devices to groups, so we will need to use PowerShell modules or the Graph API to look up the Object ID for a given Device ID
- Query to check devices where ASR rules are turned off - Reddit
I'm looking to fetch a report to review devices where a specific ASR rule is enabled or not The devices are listed in the ASR dashboard in MDE , but unable to find an option to export it Does anyone have a query to check the report If you have defender security console in o365 you can run ASR reports Leverage the DeviceTvmInfoGathering table
- Troubleshoot problems with attack surface reduction rules - Microsoft . . .
When you use attack surface reduction rules you might run into issues, such as: A rule doesn't work as described, or doesn't block a file or process that it should (false negative) There are four steps to troubleshooting these problems: Confirm prerequisites Use audit mode to test the rule
- ASR Rules | What is Attack Surface Reduction | Troubleshoot
You can enable ASR rules by configuring them in the Endpoint Security settings or by creating a dedicated ASR policy Explore each rule’s specific capabilities; they can be a game-changer
- Report and troubleshoot Defender for Endpoint attack surface reduction . . .
Advanced hunting is a query-based (Kusto Query Language) threat-hunting tool that lets you explore up to 30 days of the captured (raw) data, that Defender for Endpoint collects from your devices
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