Module Logging: PowerShell pipeline execution details

// EVENT DEFINITION:

PowerShell Module Logging recorded command invocation and parameter binding within a pipeline.

// DETAILED TELEMETRY & CONTEXT:

Event ID 4103 (`Microsoft-Windows-PowerShell/Operational`) records when PowerShell executes commands within logged modules (`Module Logging`). It reveals exact cmdlet invocations, parameter values (`ContextInfo`), variables, and object pipelines executed by users or remote scripts (`Invoke-Command`, `DownloadString`).

[ ! ]Failure Reason / Root Cause Analysis

PowerShell pipeline execution inside an audited module (`ScriptBlock ID` & `CommandInvocation`).

Operational Metadata & Applicability

Log Category:PowerShell

Audit Type Classification:Success Audit

Supported Operating Systems:Windows Server 2016, 2019, 2022 / Windows Client 10, 11 (Enterprise / Pro)

Threat Hunting Keywords:

4103powershell module loggingpipeline executioncmdlet invocationt1059.001

MITRE ATT&CK Framework Alignment

T1059.001

Command and Scripting Interpreter: PowerShellTactic: Execution

Mitigation Playbook & Recommended SOC Actions

•Inspect `CommandInvocation` and parameter bindings for obfuscated strings, base64 payloads (`-EncodedCommand`), or memory injection (`VirtualAlloc`).
•Correlate with `4104` (`Script Block Logging`).

Representative Windows Event XML Schema

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <EventID>4103</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12544</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2026-07-17T09:54:44.249Z" />
    <EventRecordID>1048576</EventRecordID>
    <Correlation />
    <Execution ProcessID="612" ThreadID="1024" />
    <Channel>Security</Channel>
    <Computer>DC01.enterprise.internal</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-5-18</Data>
    <Data Name="SubjectUserName">SYSTEM</Data>
    <Data Name="SubjectDomainName">NT AUTHORITY</Data>
    <Data Name="SubjectLogonId">0x3e7</Data>
    <!-- Event telemetry fields specific to Module Logging: PowerShell pipeline execution details -->
  </EventData>
</Event>

Correlated / Related Security Event IDs

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