Microsoft-Windows-Base-Filtering-Engine-Connections

EventTitleChannelSampleRule
2000New ConnectionOperationalNN
2001Connection ClosedOperationalNN

Event ID 2000: New Connection

#
Channel
Operational
Opcode
Info

Fields #

NameDescription
ConnectionId UInt64
MachineAuthenticationMethod UInt32
RemoteMachineAccount UnicodeString
UserAuthenticationMethod UInt32
RemoteUserAcount UnicodeString
RemoteIPAddress UnicodeString
LocalIPAddress UnicodeString
TechnologyProviderKey GUID
IPsecTrafficMode UInt32
DHGroup UInt32
StartTime SYSTEMTIME

Event ID 2001: Connection Closed

#
Channel
Operational
Opcode
Info

Fields #

NameDescription
ConnectionId UInt64
MachineAuthenticationMethod UInt32
RemoteMachineAccount UnicodeString
UserAuthenticationMethod UInt32
RemoteUserAcount UnicodeString
RemoteIPAddress UnicodeString
LocalIPAddress UnicodeString
TechnologyProviderKey GUID
IPsecTrafficMode UInt32
BytesTransferredInbound UInt64
BytesTransferredOutbound UInt64
BytesTransferredTotal UInt64
StartTime SYSTEMTIME
CloseTime SYSTEMTIME

Provenance

ETW provider GUID 121d3da8-baf1-4dcb-929f-2d4c9a47f7ab

Defined in bfe.dll, which carries the event manifest.

  • WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.3328, captured 2026-06-02 — Manifest XML pack, 1.9 MB
  • Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.3915, captured 2026-06-02 — Manifest XML pack, 2.0 MB