View and organize the Microsoft Defender for Endpoint Alerts queue
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The Alerts queue shows a list of alerts that were flagged from devices in your network. By default, the queue displays alerts seen in the last 30 days in a grouped view. The most recent alerts are shown at the top of the list helping you see the most recent alerts first.
The alerts are significantly reduced with automated investigation and remediation, allowing security operations experts to focus on more sophisticated threats and other high value initiatives. When an alert contains a supported entity for automated investigation (for example, a file) in a device that has a supported operating system for it, an automated investigation and remediation can start. For more information on automated investigations, see Overview of Automated investigations.
There are several options you can choose from to customize the alerts view.
On the top navigation you can:
- Customize columns to add or remove columns
- Apply filters
- Display the alerts for a particular duration like 1 Day, 3 Days, 1 Week, 30 Days, and 6 Months
- Export the alerts list to excel
- Manage Alerts
Sort and filter alerts
You can apply the following filters to limit the list of alerts and get a more focused view of the alerts.
|Alerts commonly seen associated with advanced persistent threats (APT). These alerts indicate a high risk because of the severity of damage they can inflict on devices. Some examples are: credential theft tools activities, ransomware activities not associated with any group, tampering with security sensors, or any malicious activities indicative of a human adversary.|
|Alerts from endpoint detection and response post-breach behaviors that might be a part of an advanced persistent threat (APT). These behaviors include observed behaviors typical of attack stages, anomalous registry change, execution of suspicious files, and so forth. Although some might be part of internal security testing, it requires investigation as it might also be a part of an advanced attack.|
|Alerts on threats associated with prevalent malware. For example, hack-tools, non-malware hack tools, such as running exploration commands, clearing logs, etc., that often do not indicate an advanced threat targeting the organization. It could also come from an isolated security tool testing by a user in your organization.|
|Alerts that might not be considered harmful to the network but can drive organizational security awareness on potential security issues.|
Understanding alert severity
Microsoft Defender Antivirus and Defender for Endpoint alert severities are different because they represent different scopes.
The Microsoft Defender Antivirus threat severity represents the absolute severity of the detected threat (malware), and is assigned based on the potential risk to the individual device, if infected.
The Defender for Endpoint alert severity represents the severity of the detected behavior, the actual risk to the device but more importantly the potential risk to the organization.
So, for example:
- The severity of a Defender for Endpoint alert about a Microsoft Defender Antivirus detected threat that was prevented and did not infect the device is categorized as "Informational" because there was no actual damage.
- An alert about a commercial malware was detected while executing, but blocked and remediated by Microsoft Defender Antivirus, is categorized as "Low" because it may have caused some damage to the individual device but poses no organizational threat.
- An alert about malware detected while executing which can pose a threat not only to the individual device but to the organization, regardless if it was eventually blocked, may be ranked as "Medium" or "High".
- Suspicious behavioral alerts, which weren't blocked or remediated will be ranked "Low", "Medium" or "High" following the same organizational threat considerations.
You can choose to filter the list of alerts based on their Status.
If you see an Unsupported alert type alert status, it means that automated investigation capabilities cannot pick up that alert to run an automated investigation. However, you can investigate these alerts manually.
We've redefined the alert categories to align to the enterprise attack tactics in the MITRE ATT&CK matrix. New category names apply to all new alerts. Existing alerts will keep the previous category names.
Microsoft Threat Experts preview participants can now filter and see detections from the new threat experts-managed hunting service.
Filter the alerts based on the following Service sources:
- Microsoft Defender for Identity
- Microsoft Defender for Cloud Apps
- Microsoft Defender for Endpoint
- Microsoft 365 Defender
- Microsoft Defender for Office 365
- App Governance
- AAD Identity Protection
The Antivirus filter will only appear if devices are using Microsoft Defender Antivirus as the default real-time protection antimalware product.
You can filter the alerts based on Tags assigned to alerts.
You can filter the alerts based on the following policies:
|Detection source||API value|
|Microsoft 365 Defender||MTP|
|Microsoft Defender for Office 365||OfficeATP|
|Microsoft Threat Experts||ThreatExperts|
You can filter the alerts based on Entity name or ID.
Automated investigation state
You can choose to filter the alerts based on their Automated investigation state.
- Manage Microsoft Defender for Endpoint alerts
- Investigate Microsoft Defender for Endpoint alerts
- Investigate a file associated with a Microsoft Defender for Endpoint alert
- Investigate devices in the Microsoft Defender for Endpoint Devices list
- Investigate an IP address associated with a Microsoft Defender for Endpoint alert
- Investigate a domain associated with a Microsoft Defender for Endpoint alert
- Investigate a user account in Microsoft Defender for Endpoint