Microsoft-Windows-Kernel-Network

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

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

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: TCPconnectionattemptfailed.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

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.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

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.

Channel: Analytic
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: UDPconnectionattemptfailed.

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.

Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

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.

Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

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

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

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

WS2022-20348.4893, sample captured from a live trace, binary version 10.0.20348.3932, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, sample captured from a live trace, binary version 10.0.26100.5074, captured 2026-06-02 — Manifest XML pack, 2.0 MB
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.3932, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02 — Manifest XML pack, 2.0 MB