Microsoft Defender AV must be configured to scan archive files.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-213448	SRG-APP-000278	WNDF-AV-000024	SV-213448r823067_rule	2022-04-08	2

Description
This policy setting allows the configuration of scans for malicious software and unwanted software in archive files such as .ZIP or .CAB files. If this setting is enabled or not configured, archive files will be scanned. If this setting is disabled, archive files will not be scanned.

ℹ️ Check
Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Scan >> "Scan archive files" is set to "Enabled" or "Not Configured". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows Defender\Scan Criteria: If the value "DisableArchiveScanning" is REG_DWORD = 0, this is not a finding. If the value does not exist, this is not a finding. If the value is 1, this is a finding.

ℹ️ Check

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Scan >> "Scan archive files" is set to "Enabled" or "Not Configured". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows Defender\Scan Criteria: If the value "DisableArchiveScanning" is REG_DWORD = 0, this is not a finding. If the value does not exist, this is not a finding. If the value is 1, this is a finding.

✔️ Fix
Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Scan >> "Scan archive files" to "Enabled " or "Not Configured".