Microsoft Defender for Endpoint
Endpoint protection

View and Organize the Microsoft Defender for Endpoint Alerts Queue - Microsoft Defender for Endpoint | Microsoft Learn

In brief

The page received wording, formatting, and accessibility edits. It clarifies when automated investigation and remediation can start, links to its overview, refines alert-severity descriptions, and updates the screenshot text.

What Defender admins need to know

Administrators get clearer guidance when reviewing alerts, automated investigation conditions, and severity definitions. No administrator action is stated.

Summaries are generated from the documentation change itself.

Documentation change

The comparison below shows only the changed extract. Use the full-page view for complete context.

View and organizeOrganize the Microsoft Defender for Endpoint Alerts queueQueue - Microsoft Defender for Endpoint | Microsoft Learn

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 7seven 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.list.

Note

The alerts are significantly reduced with automated investigation and remediation, allowingremediation. This practice allows 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,investigation, such as a file)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,information, see Overview of Automated investigations.

There are several options you can choose from to customize the alerts view.

  • Export the alerts list to excel
  • Manage Alerts

Screenshot shows the Alerts queue page.

Sort and filter alerts

Alert severity Description
High (Red) 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.
Medium (Orange) 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, and execution of suspicious files, and so forth.files. Although some might be part of internal security testing, itthis severity requires investigation asbecause it might also be a part of an advanced attack.
Low (Yellow) Alerts on threats associated with prevalent malware. For example, hack-tools, non-malware hack tools, such as running exploration commands,commands and clearing logs, etc., that often do not indicate an advanced threat targeting the organization. ItThis level could also come from an isolated security tool testing by a user in your organization.
Informational (Grey)(Gray) 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. It's 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, which is the actual risk to the device but more importantly the potential risk to the organization.

So, forFor 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 commercialCommercial malware wasthat is detected while executing,running but blocked and remediated by Microsoft Defender Antivirus, is categorized as "Antivirus generates a Low" alert because it maymight have caused some damage to the individual device but poses no organizational threat.
  • An alert about malwareMalware that is detected while executing whichrunning and can pose a threat not onlyboth to the individual device butand to the organization, regardless if it was eventually blocked, mayorganization might be ranked as "Medium" or "High"., regardless of whether it is eventually blocked.
  • Suspicious behavioral alerts, which weren't blocked or remediated will beremediated, are ranked "Low", "Medium", or "High" following the same organizational threat considerations.

Status

You can choose to filter the list of alerts based on their Status.status.

Note

If you see an Unsupported alert type alert status, it means that automated investigation capabilities cannotcan't pick up that alert to run an automated investigation. However, youYou can investigate these alerts manually.

Categories

We'veMicrosoft 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.

Service sources

Note

The Antivirus filter will only appearappears if devices are using Microsoft Defender Antivirus as the default real-time protection antimalware product.

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