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Update defender-endpoint-false-positives-negatives.md
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defender-endpoint/defender-endpoint-false-positives-negatives.md

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@@ -47,7 +47,7 @@ When you have a false positive, try to determine its detection source. The follo
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| -------- | -------- |
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|EDR|The alert is related to Microsoft Defender for Endpoint – Endpoint Detection and Response <br/>- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives) <br/>- Work-around: Tune the alerts|
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|Antivirus|The alert relates to Microsoft Defender Antivirus in Active mode (Primary) where it blocks. If Microsoft Defender Antivirus is in passive mode, EDR in block mode might just detect.<br/>- Solution: Submit the False Positive to [https://aka.ms/wdsi](https://aka.ms/wdsi) <br/>- Work-around: Add [Indicators - File hash - allow ](/defender-endpoint/defender-endpoint-false-positives-negatives)or an [Antivirus exclusion](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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| Custom TI| Custom indicators (Indicators <br/>- [file hash](/defender-endpoint/indicator-file)<br/>- [ip address or URL](/defender-endpoint/indicator-ip-domain)<br/>- [certificates](/defender-endpoint/indicator-certificates)) <br/><br/>Solution: [Manage indicators](/defender-endpoint/indicator-manage). <br/><br/> Or, if you see `CustomEnterpriseBlock`, your detection source could be one of the following: <br/><br/>1. Automated Investigation and Response (Auto-IR)<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives) <br/>-- Work-around: [Automation folder exclusions ](/defender-endpoint/manage-automation-folder-exclusions)<br/><br/>2. Custom detection rules deriving from Advanced Hunting (AH) <br/>-- Solution: [Manage existing custom detection rules ](/defender-xdr/custom-detection-rules)<br/><br/>3. EDR in block mode <br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/><br/>4. Live Response<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/><br/>5. PUA protection<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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| Custom TI| Custom indicators (Indicators <br/>- [file hash](/defender-endpoint/indicator-file)<br/>- [ip address or URL](/defender-endpoint/indicator-ip-domain)<br/>- [certificates](/defender-endpoint/indicator-certificates)) <br/><br/>Solution: [Manage indicators](/defender-endpoint/indicator-manage). <br/><br/> Or, if you see `CustomEnterpriseBlock`, your detection source could be one of the following capabilities in Defender for Endpoint: <br/><br/>1. Automated Investigation and Response (Auto-IR)<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives) <br/>-- Work-around: [Automation folder exclusions ](/defender-endpoint/manage-automation-folder-exclusions)<br/><br/>2. Custom detection rules deriving from Advanced Hunting (AH) <br/>-- Solution: [Manage existing custom detection rules ](/defender-xdr/custom-detection-rules)<br/><br/>3. EDR in block mode <br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/><br/>4. Live Response<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/><br/>5. PUA protection<br/>-- Solution: Submit the False Positive to [https://aka.ms/wdsi](/defender-endpoint/defender-endpoint-false-positives-negatives)<br/>-- Work-around: [Indicators – File hash – allow](/defender-endpoint/defender-endpoint-false-positives-negatives) or [Antivirus exclusions](/defender-endpoint/defender-endpoint-false-positives-negatives)|
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| Smartscreen|[Smartscreen](https://feedback.smartscreen.microsoft.com/smartscreenfaq.aspx)<br/>- [Report unsafe site](https://www.microsoft.com/en-us/wdsi/support/report-unsafe-site); <br/>or<br/>- It could be related to [Network Protection detection](https://www.microsoft.com/wdsi/support/report-exploit-guard)|
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## False positives and how to address them
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> [!IMPORTANT]
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> In some scenarios, the **ThreatName** might appear as `EUS:Win32/CustomEnterpriseBlock!cl`. Defender for Endpoint restores all custom blocked files that were quarantined on this device in the last 30 days.
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> A file that was quarantined as a potential network threat might not be recoverable. If a user attempts to restore the file after quarantine, that file might not be accessible. This can be due to the system no longer having network credentials to access the file. Typically, this is a result of a temporary log on to a system or shared folder and the access tokens expired.
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> A file that was quarantined as a potential network threat might not be recoverable. If a user attempts to restore the file after quarantine, that file might not be accessible. This can be due to the system no longer having network credentials to access the file. Typically, this is a result of a temporary sign-in a system or shared folder and the access tokens expired.
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3. In the pane on the right side of the screen, select **Apply to X more instances of this file**, and then select **Undo**.
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> [!CAUTION]
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> Before you define an exclusion, review the detailed information in [Manage exclusions for Microsoft Defender for Endpoint and Microsoft Defender Antivirus](defender-endpoint-antivirus-exclusions.md). Keep in mind that every exclusion that is defined lowers your level of protection.
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An exclusion is an entity, such as a file or URL, that you specify as an exception to remediation actions. The excluded entity can still get detected, but no remediation actions are taken on that entity. That is, the detected file or process won't be stopped, sent to quarantine, removed, or otherwise changed by Microsoft Defender for Endpoint.
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An exclusion is an entity, such as a file or URL, that you specify as an exception to remediation actions. The excluded entity can still get detected, but no remediation actions are taken on that entity. That is, the detected file or process isn't stopped, sent to quarantine, removed, or otherwise changed by Microsoft Defender for Endpoint.
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To define exclusions across Microsoft Defender for Endpoint, perform the following tasks:
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