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PowerShell script block logging must be enabled.


Finding ID Version Rule ID IA Controls Severity
V-68819 WN10-CC-000326 SV-83411r1_rule Medium
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Enabling PowerShell script block logging will record detailed information from the processing of PowerShell commands and scripts. This can provide additional detail when malware has run on a system.
Windows 10 Security Technical Implementation Guide 2018-04-06


Check Text ( C-69307r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding.

Registry Path: \SOFTWARE\ Policies\Microsoft\Windows\PowerShell\ScriptBlockLogging\

Value Name: EnableScriptBlockLogging

Value Type: REG_DWORD
Value: 1
Fix Text (F-74989r1_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows PowerShell >> "Turn on PowerShell Script Block Logging" to "Enabled".