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Windows-Setup/Group Policies Objects/Default Domain Policy/Microsoft Defender Antivirus.md
Tommy ddefee6de0
Add ASR rules
Signed-off-by: Tommy <contact@tommytran.io>
2024-04-26 00:06:19 -07:00

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# Microsoft Defender Antivirus
**MAPS and features dependent on it disabled using this policy. It 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`
- Join Microsoft MAPS -> Enabled -> Disabled
## 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
## Attack Surface Reduction
`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Attack surface reduction`
- Configure Attack Surface Reduction rules -> Add all rules from the [GUID Matrix](https://learn.microsoft.com/en-us/defender-endpoint/attack-surface-reduction-rules-reference?view=o365-worldwide#asr-rule-to-guid-matrix) except `01443614-cd74-433a-b99e-2ecdc07bfc25`. Set their value to 1.
Rationale: `01443614-cd74-433a-b99e-2ecdc07bfc25` depends on Microsoft Cloud Protection (MAPS). The only place where I use MAPS is my gaming machine, and it needs to be able to run not-so-reputable programs anyways.
## MpEngine
`Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MpEngine`
- Enable file hash computation feature -> Enabled
## 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