Microsoft-Windows-Kernel-Network

22 events across 1 channel

Event	Title	Channel	Sample
10	TCPv4: size bytes transmitted from saddr:sport to daddr:dport.	Analytic	Y
11	TCPv4: size bytes received from saddr:sport to daddr:dport.	Analytic	Y
12	TCPv4: Connection attempted between saddr:sport and daddr:dport.	Analytic	Y
13	TCPv4: Connection closed between saddr:sport and daddr:dport.	Analytic	Y
14	TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.	Analytic	N
15	TCPv4: Connection established between saddr:sport and daddr:dport.	Analytic	Y
16	TCPv4: Reconnect attempt between saddr:sport and daddr:dport.	Analytic	Y
17	TCPv4: Connection attempt failed with error code FailureCode.	Analytic	N
18	TCPv4: size bytes copied in protocol on behalf of user for connection between …	Analytic	Y
26	TCPv6: size bytes transmitted from saddr:sport to daddr:dport.	Analytic	Y
27	TCPv6: size bytes received from saddr:sport to daddr:dport.	Analytic	Y
28	TCPv6: Connection attempted between saddr:sport and daddr:dport.	Analytic	Y
29	TCPv6: Connection closed between saddr:sport and daddr:dport.	Analytic	Y
30	TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.	Analytic	N
31	TCPv6: Connection established between saddr:sport and daddr:dport.	Analytic	Y
32	TCPv6: Reconnect attempt between saddr:sport and daddr:dport.	Analytic	N
34	TCPv6: size bytes copied in protocol on behalf of user for connection between …	Analytic	N
42	UDPv4: size bytes transmitted from saddr:sport to daddr:dport.	Analytic	Y
43	UDPv4: size bytes received from saddr:sport to daddr:dport.	Analytic	Y
49	UDPv4: Connection attempt failed with error code FailureCode.	Analytic	N
58	UDPv6: size bytes transmitted from saddr:sport to daddr:dport.	Analytic	Y
59	UDPv6: size bytes received from saddr:sport to daddr:dport.	Analytic	Y

Event ID 10: TCPv4: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

Description

TCPv4: size bytes transmitted from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`startime` UInt32
`endtime` UInt32
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "10",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "10",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423105900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "    1007",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "startime": " 5775532",
    "endtime": " 5775532",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 11: TCPv4: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

Description

TCPv4: size bytes received from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "11",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "11",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423344200+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "       6",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 12: TCPv4: Connection attempted between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

Description

TCPv4: Connection attempted between saddr:sport and daddr:dport.

Message #

TCPv4: Connection attempted between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`mss` UInt16
`sackopt` UInt16
`tsopt` UInt16
`wsopt` UInt16
`rcvwin` UInt32
`rcvwinscale` UInt16
`sndwinscale` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "12",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "12",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.246626600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    3688",
    "size": "       0",
    "daddr": "13.89.179.13",
    "saddr": "10.2.10.21",
    "dport": "443",
    "sport": "52999",
    "mss": "1440",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": "  263520",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 13: TCPv4: Connection closed between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

Description

TCPv4: Connection closed between saddr:sport and daddr:dport.

Message #

TCPv4: Connection closed between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "13",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "13",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:38.733385600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "7444"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "51201",
    "sport": "5985",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 14: TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

Description

TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes retransmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Event ID 15: TCPv4: Connection established between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

Description

TCPv4: Connection established between saddr:sport and daddr:dport.

Message #

TCPv4: Connection established between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`mss` UInt16
`sackopt` UInt16
`tsopt` UInt16
`wsopt` UInt16
`rcvwin` UInt32
`rcvwinscale` UInt16
`sndwinscale` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "15",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "15",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:38.720184400+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "51201",
    "sport": "5985",
    "mss": "1460",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2098020",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 16: TCPv4: Reconnect attempt between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

Description

TCPv4: Reconnect attempt between saddr:sport and daddr:dport.

Message #

TCPv4: Reconnect attempt between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "16",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "16",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-15T23:31:42.718082500+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "   10852",
    "size": "       0",
    "daddr": "10.2.10.21",
    "saddr": "10.2.10.11",
    "dport": "389",
    "sport": "51269",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 17: TCPv4: Connection attempt failed with error code FailureCode.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: TCPconnectionattemptfailed.

Description

TCPv4: Connection attempt failed with error code FailureCode.

Message #

TCPv4: Connection attempt failed with error code %2.

Fields #

Name	Description
`Proto` UInt16
`FailureCode` UInt16	NTSTATUS reference

Event ID 18: TCPv4: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

Description

TCPv4: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Message #

TCPv4: %2 bytes copied in protocol on behalf of user for connection between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "18",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "18",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423184700+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "       6",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 26: TCPv6: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

Description

TCPv6: size bytes transmitted from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`startime` UInt32
`endtime` UInt32
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "26",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "10",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399794900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "272"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "      73",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "445",
    "sport": "51218",
    "startime": " 6703694",
    "endtime": " 6703694",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 27: TCPv6: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

Description

TCPv6: size bytes received from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "27",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "11",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:27:51.302752300+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "7780",
      "thread_id": "14004"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    7780",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51180",
    "sport": "1500",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 28: TCPv6: Connection attempted between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

Description

TCPv6: Connection attempted between saddr:sport and daddr:dport.

Message #

TCPv6: Connection attempted between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`mss` UInt16
`sackopt` UInt16
`tsopt` UInt16
`wsopt` UInt16
`rcvwin` UInt32
`rcvwinscale` UInt16
`sndwinscale` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "28",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "12",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399638500+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "11356"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "445",
    "sport": "51218",
    "mss": "65475",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2160675",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 29: TCPv6: Connection closed between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

Description

TCPv6: Connection closed between saddr:sport and daddr:dport.

Message #

TCPv6: Connection closed between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "29",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "13",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:27:51.302774600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "7780",
      "thread_id": "14004"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    7780",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51180",
    "sport": "1500",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 30: TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

Description

TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes retransmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Event ID 31: TCPv6: Connection established between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

Description

TCPv6: Connection established between saddr:sport and daddr:dport.

Message #

TCPv6: Connection established between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`mss` UInt16
`sackopt` UInt16
`tsopt` UInt16
`wsopt` UInt16
`rcvwin` UInt32
`rcvwinscale` UInt16
`sndwinscale` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "31",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "15",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399678700+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "11356"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51218",
    "sport": "445",
    "mss": "65475",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2160675",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 32: TCPv6: Reconnect attempt between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

Description

TCPv6: Reconnect attempt between saddr:sport and daddr:dport.

Message #

TCPv6: Reconnect attempt between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Event ID 34: TCPv6: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

Description

TCPv6: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Message #

TCPv6: %2 bytes copied in protocol on behalf of user for connection between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Event ID 42: UDPv4: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

Description

UDPv4: size bytes transmitted from saddr:sport to daddr:dport.

Message #

UDPv4: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "42",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "42",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.078247000+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "228",
      "thread_id": "8220"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "     228",
    "size": "      63",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "53",
    "sport": "53893",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 43: UDPv4: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

Description

UDPv4: size bytes received from saddr:sport to daddr:dport.

Message #

UDPv4: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` UInt32
`saddr` UInt32
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "43",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "43",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.117095100+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "     228",
    "size": "     186",
    "daddr": "10.2.10.21",
    "saddr": "10.2.10.11",
    "dport": "53893",
    "sport": "53",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 49: UDPv4: Connection attempt failed with error code FailureCode.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: UDPconnectionattemptfailed.

Description

UDPv4: Connection attempt failed with error code FailureCode.

Message #

UDPv4: Connection attempt failed with error code %2.

Fields #

Name	Description
`Proto` UInt16
`FailureCode` UInt16	NTSTATUS reference

Event ID 58: UDPv6: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

Description

UDPv6: size bytes transmitted from saddr:sport to daddr:dport.

Message #

UDPv6: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "58",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "42",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:32:35.808545200+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "11184",
      "thread_id": "1192"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "   11184",
    "size": "      90",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "53",
    "sport": "52668",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 59: UDPv6: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

Description

UDPv6: size bytes received from saddr:sport to daddr:dport.

Message #

UDPv6: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32
`size` UInt32
`daddr` Binary
`saddr` Binary
`dport` UInt16
`sport` UInt16
`seqnum` UInt32
`connid` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "59",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "43",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:32:35.808665300+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "11184",
      "thread_id": "1192"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    2680",
    "size": "      90",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "53",
    "sport": "52668",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

ETW provider GUID {7DD42A49-5329-4832-8DFD-43D979153A88}

Defined in Microsoft-Windows-System-Events.dll, which carries the event manifest.

Observed on:

WS2022-20348.4893, sample captured from a live trace, binary version 10.0.20348.3932, captured 2026-06-02
Win11-26200.6584, sample captured from a live trace, binary version 10.0.26100.5074, captured 2026-06-02
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.3932, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)