Investigate devices in the Defender for Endpoint Devices list

Device details

The device details section provides information such as the domain, OS, and health state of the device. If there's an investigation package available on the device, you'll see a link that allows you to download the package.

Response actions

Response actions run along the top of a specific device page and include:

Manage tags

Isolate device

Restrict app execution

Run antivirus scan

Collect investigation package

Initiate Live Response Session

Initiate automated investigation

Consult a threat expert

Action center

You can take response actions in the Action center, in a specific device page, or in a specific file page.

For more information on how to take action on a device, see Take response action on a device .

For more information, see Investigate user entities .

The tabs provide relevant security and threat prevention information related to the device. In each tab, you can customize the columns that are shown by selecting Customize columns from the bar above the column headers.

Overview

The Overview tab displays the cards for active alerts, logged on users, and security assessment.

Alerts

The Alerts tab provides a list of alerts that are associated with the device. This list is a filtered version of the Alerts queue , and shows a short description of the alert, severity (high, medium, low, informational), status in the queue (new, in progress, resolved), classification (not set, false alert, true alert), investigation state, category of alert, who is addressing the alert, and last activity. You can also filter the alerts.

When the circle icon to the left of an alert is selected, a fly-out appears. From this panel you can manage the alert and view more details such as incident number and related devices. Multiple alerts can be selected at a time.

To see a full page view of an alert including incident graph and process tree, select the title of the alert.

Timeline

The Timeline tab provides a chronological view of the events and associated alerts that have been observed on the device. This can help you correlate any events, files, and IP addresses in relation to the device.

The timeline also enables you to selectively drill down into events that occurred within a given time period. You can view the temporal sequence of events that occurred on a device over a selected time period. To further control your view, you can filter by event groups or customize the columns.

For firewall events to be displayed, you'll need to enable the audit policy, see Audit Filtering Platform connection .

Firewall covers the following events:

5025 - firewall service stopped

5031 - application blocked from accepting incoming connections on the network

5157 - blocked connection

Filter events from a specific date

Select the calendar icon in the upper left of the table to display events in the past day, week, 30 days, or custom range. By default, the device timeline is set to display the events from the past 30 days.

Use the timeline to jump to a specific moment in time by highlighting the section. The arrows on the timeline pinpoint automated investigations

Export detailed device timeline events

Export the device timeline for the current date or a specified date range up to seven days.

More details about certain events are provided in the Additional information section. These details vary depending on the type of event, for example:

Contained by Application Guard - the web browser event was restricted by an isolated container

Active threat detected - the threat detection occurred while the threat was running

Remediation unsuccessful - an attempt to remediate the detected threat was invoked but failed

Remediation successful - the detected threat was stopped and cleaned

Warning bypassed by user - the Windows Defender SmartScreen warning was dismissed and overridden by a user

Suspicious script detected - a potentially malicious script was found running

The alert category - if the event led to the generation of an alert, the alert category ("Lateral Movement", for example) is provided

Event details

Select an event to view relevant details about that event. A panel displays to show general event information. When applicable and data is available, a graph showing related entities and their relationships are also shown.

To further inspect the event and related events, you can quickly run an advanced hunting query by selecting Hunt for related events . The query will return the selected event and the list of other events that occurred around the same time on the same endpoint.

Security recommendations

Security recommendations are generated from Microsoft Defender for Endpoint's Vulnerability Management capability. Selecting a recommendation will show a panel where you can view relevant details such as description of the recommendation and the potential risks associated with not enacting it. See Security recommendation for details.

Software inventory

The Software inventory tab lets you view software on the device, along with any weaknesses or threats. Selecting the name of the software will take you to the software details page where you can view security recommendations, discovered vulnerabilities, installed devices, and version distribution. See Software inventory for details

You'll need to enable the integration on both Microsoft Defender for Identity and Defender for Endpoint to use this feature. In Defender for Endpoint, you can enable this feature in advanced features. For more information on how to enable advanced features, see Turn on advanced features .

Logged on users

The Logged on users card shows how many users have logged on in the past 30 days, along with the most and least frequent users. Selecting the "See all users" link opens the details pane, which displays information such as user type, log on type, and when the user was first and last seen. For more information, see Investigate user entities .

The 'Most frequent' user value is calculated only based on evidence of users who successfully logged on interactively. However, the "All users" side-pane calculates all sorts of user logons so it is expected to see more frequent users in the side-pane, given that those users may not be interactive.

Security assessments

The Security assessments card shows the overall exposure level, security recommendations, installed software, and discovered vulnerabilities. A device's exposure level is determined by the cumulative impact of its pending security recommendations.

Device health status

The Device health status card shows a summarized health report for the specific device. One of the following messages is displayed at the top of the card to indicate the overall status of the device (listed in order of highest to lowest priority):

Defender Antivirus not active

Security intelligence is not up to date

Engine is not up to date

Quick scan failed

Full scan failed

Platform is not up to date

Security intelligence update status is unknown

Engine update status is unknown

Quick scan status is unknown

Full scan status is unknown

Platform update status is unknown

Device is up to date

Status not available for macOS & Linux

Other information in the card include: the last full scan, last quick scan, security intelligence update version, engine update version, platform update version, and Defender Antivirus mode.

Please note that a grey circle indicates that the data is unknown.

The overall status message for macOS and Linux devices currently shows up as 'Status not available for macOS & Linux'. Currently, the status summary is only available for Windows devices. All other information in the table is up to date to show the individual states of each device health signal for all supported platforms.

To gain an in-depth view of the device health report, you can go to Reports > Devices health . For more information, see Device health and compliance report in Microsoft Defender for Endpoint .

The date and time for Defender Antivirus mode is currently not available.

View and organize the Microsoft Defender for Endpoint Alerts queue

Manage Microsoft Defender for Endpoint alerts

Investigate Microsoft Defender for Endpoint alerts

Investigate a file associated with a Defender for Endpoint alert

Investigate an IP address associated with a Defender for Endpoint alert

Investigate a domain associated with a Defender for Endpoint alert

Investigate a user account in Defender for Endpoint

Security recommendation

Software inventory