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59 lines
2.6 KiB
Markdown
59 lines
2.6 KiB
Markdown
# Microsoft Defender Antivirus
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**MAPS and features dependent on it are not enabled using this policy. It just configures how aggressive MAPS should be. This is quite invasive so I will only enable it for certain OUs.**
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`Computer Configuration\Policies\Administrative Templates\Windows Components\Microsoft Defender Antivirus`
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## MAPS
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MAPS`
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- Configure the 'Block at First Sight' feature -> Enabled
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- Send file samples when further analysis is required -> Enabled -> Always Prompt (Send safe sample works better with 'Block at First Sight, but I really, really do not trust Microsoft on this one)
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## Controlled Folder Access
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Controlled Folder Access`
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- Configure Controlled folder access -> Enabled -> Block
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## Network Protection
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Network Protection`
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Only relevant if SmartScreen is used.
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Documentation:
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- https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/network-protection?view=o365-worldwide
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- https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/enable-network-protection?view=o365-worldwide
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This settings controls whether Network protection is allowed to be configured into block or audit mode on Windows -> Enabled (Only relevant if running Windows Server)
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Prevent users and apps from accessing dangerous websites -> Enabled -> Block
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## MpEngine
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MpEngine`
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Only relevant if MAPS is used
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- Enable file hash computation feature -> Enabled
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- Configure extended cloud check -> Specify the extended cloud check time in seconds -> 50
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- Select cloud protection level -> Zero tolerance blocking level
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## Quarantine
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Quarantine`
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- Configure local settings override for the removal of items from Quarantine folder -> Enabled
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- Configure removal of items from Quarantine folder -> 1 day
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## Scan
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`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Scan`
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- Scan for the latest virus and spyware security intelligence before running a scheduled scan -> Enabled
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- Turn on catch-up quick scan -> Enabled
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## Security Intelligence Updates
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- Check for the latest virus and spyware security intelligence on startup -> Enabled |