2.6 KiB
Microsoft Defender Antivirus
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.
Computer Configuration\Policies\Administrative Templates\Windows Components\Microsoft Defender Antivirus
MAPS
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MAPS
- Configure the 'Block at First Sight' feature -> Enabled
- 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)
Controlled Folder Access
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Controlled Folder Access
- Configure Controlled folder access -> Enabled -> Block
Network Protection
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Network Protection
Only relevant if SmartScreen is used.
Documentation:
- https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/network-protection?view=o365-worldwide
- https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/enable-network-protection?view=o365-worldwide
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) Prevent users and apps from accessing dangerous websites -> Enabled -> Block
MpEngine
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MpEngine
Only relevant if MAPS is used
- Enable file hash computation feature -> Enabled
- Configure extended cloud check -> Specify the extended cloud check time in seconds -> 50
- Select cloud protection level -> Zero tolerance blocking level
Quarantine
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Quarantine
- Configure local settings override for the removal of items from Quarantine folder -> Enabled
- Configure removal of items from Quarantine folder -> 1 day
Scan
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Scan
- Scan for the latest virus and spyware security intelligence before running a scheduled scan -> Enabled
- Turn on catch-up quick scan -> Enabled
Security Intelligence Updates
- Check for the latest virus and spyware security intelligence on startup -> Enabled