Defender for Endpoint will restore all custom blocked files that were quarantined on this device in the last 30 days. 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.
Selecting Download file from the response actions allows you to download a local, password-protected. A flyout will appear where you can record a reason for downloading the file, and set a password. Files that have been quarantined by Microsoft Defender Antivirus or your security team will be saved in a compliant way according to your sample submission configurations. This preview feature is turned 'On' by default.
A quarantined file will only be collected once per organization. Having this setting turned on can help security teams examine potentially bad files and investigate incidents quickly and in a less risky way.
Learn more about advanced features. Users may be prompted to provide explicit consent before backing up the quarantined file, depending on your sample submission configuration. This feature will not work if sample submission is turned off. If automatic sample submission is set to request permission from the user, only samples that the user agrees to send will be collected.
If a file is not already stored by Microsoft Defender for Endpoint, you can't download it. Instead, you'll see a Collect file button in the same location. If a file hasn't been seen in the organization in the past 30 days, Collect file will be disabled. Prevent further propagation of an attack in your organization by banning potentially malicious files or suspected malware.
If you know a potentially malicious portable executable PE file, you can block it. This operation will prevent it from being read, written, or executed on devices in your organization.
This feature is available if your organization uses Microsoft Defender Antivirus and Cloud-delivered protection is enabled. For more information, see Manage cloud-delivered protection. This feature is designed to prevent suspected malware or potentially malicious files from being downloaded from the web. It currently supports portable executable PE files, including. The coverage will be extended over time. This response action is available for devices on Windows 10, version or later, and Windows The allow or block function cannot be done on files if the file's classification exists on the device's cache prior to the allow or block action.
There may be a couple of minutes of latency between the time the action is taken and the actual file being blocked. To start blocking files, you first need to turn the Block or allow feature on in Settings. When you add an indicator hash for a file, you can choose to raise an alert and block the file whenever a device in your organization attempts to run it. Files automatically blocked by an indicator won't show up in the file's Action center, but the alerts will still be visible in the Alerts queue.
See manage indicators for more details on blocking and raising alerts on files. To stop blocking a file, remove the indicator. You can do so via the Edit Indicator action on the file's profile page. This action will be visible in the same position as the Add Indicator action, before you added the indicator. Indicators are listed in this area by their file's hash. Consult a Microsoft threat expert for more insights on a potentially compromised device, or already compromised devices.
Microsoft Threat Experts are engaged directly from within the Microsoft Defender portal for timely and accurate response.
Experts provide insights on a potentially compromised device and help you understand complex threats and targeted attack notifications. They can also provide information about the alerts or a threat intelligence context that you see on your portal dashboard.
See Consult a Microsoft Threat Expert for details. The Action center provides information on actions that were taken on a device or file. You can view the following details:. Cyber security investigations are typically triggered by an alert. Alerts are related to one or more observed files that are often new or unknown. Selecting a file takes you to the file view where you can see the file's metadata.
To enrich the data related to the file, you can submit the file for deep analysis. The Deep analysis feature executes a file in a secure, fully instrumented cloud environment. Deep analysis results show the file's activities, observed behaviors, and associated artifacts, such as dropped files, registry modifications, and communication with IPs.
Deep analysis currently supports extensive analysis of portable executable PE files including. Deep analysis of a file takes several minutes. Once the file analysis is complete, the Deep Analysis tab will update to display a summary and the date and time of the latest available results. The deep analysis summary includes a list of observed behaviors , some of which can indicate malicious activity, and observables , including contacted IPs and files created on the disk.
If nothing was found, these sections will display a brief message. Results of deep analysis are matched against threat intelligence and any matches will generate appropriate alerts.
Use the deep analysis feature to investigate the details of any file, usually during an investigation of an alert or for any other reason where you suspect malicious behavior. This feature is available within the Deep analysis tab, on the file's profile page.
Submit for deep analysis is enabled when the file is available in the Defender for Endpoint backend sample collection, or if it was observed on a Windows 10 device that supports submitting to deep analysis. You can also submit a sample through the Microsoft Security Center Portal if the file wasn't observed on a Windows 10 device or Windows 11 , and wait for Submit for deep analysis button to become available.
Due to backend processing flows in the Microsoft Security Center Portal, there could be up to 10 minutes of latency between file submission and availability of the deep analysis feature in Defender for Endpoint. Select the file that you want to submit for deep analysis. You can select or search a file from any of the following views:.
A progress bar is displayed and provides information on the different stages of the analysis. You can then view the report when the analysis is done. Depending on device availability, sample collection time can vary. There is a 3-hour timeout for sample collection. The collection will fail and the operation will abort if there is no online Windows 10 device or Windows 11 reporting at that time. You can re-submit files for deep analysis to get fresh data on the file.
View the provided deep analysis report to see more in-depth insights on the file you submitted. This feature is available in the file view context. Select the Deep analysis tab.
With SmartScreen off, you are on your own about which files to download in Edge, but I would urge you to go back and toggle SmartScreen on when you have finished downloading your file. And, of course, only turn it off to download files you know to be safe. In Windows Defender, you can also change Edge's SmartScreen to merely warn you when you are about to download a file it deems suspicious instead of it outright blocking it.
You'll be able to click through the warning and override SmartScreen's concerns and download the file. Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion.
How to tell Microsoft Edge to let you download a file it's blocking You can override SmartScreen and its protections.
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