Event ID 5446
A Windows Filtering Platform callout has been changed.A Windows Filtering Platform callout has been changed.
Subject:
Security ID: %2
Account Name: %3
Process Information:
Process ID: %1
Provider Information:
ID: %4
Name: %5
Change Information:
Change Type: %6
Callout Information:
ID: %7
Name: %8
Type: %9
Run-Time ID: %10
Layer Information:
ID: %11
Name: %12
Run-Time ID: %13A WFP callout is a set of functions in a driver used for specialized filtering. Callouts can block, permit, modify, and secure network traffic.
More actionable than the 5440–5444 startup events because it captures runtime changes with full subject context. Recommended for environments that need to detect: Unexpected callout registrations by unsigned kernel drivers. Malicious rootkit or implant activity using WFP for network interception. Unauthorized removal of security software callouts. Baseline deviation from expected callout inventory.
This event is logged whenever a callout is added or deleted. On a stable system this happens infrequently — primarily during service starts and stops. Expect a small burst at system startup and shutdown, and isolated events when security software services are cycled.
Lookup Audit Policy Configuration Settings
C:\> AuditPol.exe /get /subcategory:"Filtering Platform Policy Change"
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