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Microsoft Defender AV must block Adobe Reader from creating child processes.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-278647WNDF-AV-000043SV-278647r1192808_ruleCCI-001170medium
Description
This policy setting prevents Adobe Reader from launching other processes, which can help mitigate security risks associated with malicious PDF files.
STIGDate
Microsoft Defender Antivirus Security Technical Implementation Guide2026-05-08

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-03.3Explicitly Allow / Deny Applications
0.50
END-10Mobile Code
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

SC-18(1)Identify Unacceptable Code and Take Corrective Actions
1.00
SC-18(3)Prevent Downloading and Execution
1.00
SC-18(4)Prevent Automatic Execution
1.00
CCI1 mapping
CCI-001170
1.00

Details

Check Text (C-278647r1192808_chk)

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Microsoft Defender Exploit Guard >> Attack Surface Reduction >> Configure Attack Surface Reduction rules is set to "Enabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows Defender\Windows Defender Exploit Guard\ASR\Rules Criteria: If the value "7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c" is REG_SZ = 1, this is not a finding. If the value is other than 1, this is a finding.

Fix Text (F-83086r1190725_fix)

Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Microsoft Defender Exploit Guard >> Attack Surface Reduction >> Configure Attack Surface Reduction rules to "Enabled". Under the policy option "Set the state for each ASR rule:", then click "Show". Enter GUID "7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c" in the "Value Name" column. Enter "1" in the "Value" column.