Event ID 5443
The following provider context was present when the Windows Filtering Platform Base Filtering Engine started.The following provider context was present when the Windows Filtering Platform Base Filtering Engine started. Provider ID: %1 Provider Name: %2 Provider Context ID: %3 Provider Context Name: %4 Provider Context Type: %5
A WFP provider context is a structured data blob that a provider stores in the Base Filtering Engine to carry policy state — most commonly IPsec negotiation parameters such as authentication methods, encryption algorithms, key lifetimes, and tunnel policies. When the BFE starts at boot, it logs one 5443 event for every persistent provider context already registered in its database.
Enable only when conducting a full WFP policy baseline audit at boot, investigating IPsec policy persistence, or forensically determining whether a malicious driver has registered a persistent provider context to store covert state across reboots. This event is only useful in combination with the other 5440–5444 startup events.
This event is typically absent on workstations lacking IPsec or VPN configurations. Systems utilizing provider contexts or active IPsec policies will generate a limited number of events, strictly confined to the system initialization phase.
Lookup Audit Policy Configuration Settings
C:\> AuditPol.exe /get /subcategory:"Filtering Platform Policy Change" LEFT/RIGHT arrow keys for navigation
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