Microsoft-Windows-Hyper-V-VSmb

Event	Title	Channel	Sample	Rule
1	[VMID VmId]	Operational	N	N
1	[VMID VmId] TraceData.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
2	[VMID VmId]	Operational	N	N
2	[VMID VmId] TraceData.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
3	[VMID VmId]	Operational	N	N
3	[VMID VmId] TraceData.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
4	[VMID VmId]	Operational	N	N
4	[VMID VmId] TraceData.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
101	SMB2 Response Negotiate	Operational	N	N
102	SMB2 Response Session Setup	Operational	N	N
103	SMB2 Response Logoff	Operational	N	N
104	SMB2 Response Tree Connect	Operational	N	N
105	SMB2 Response Tree Disconnect	Operational	N	N
106	SMB2 Response Echo	Operational	N	N
108	SMB2 Response Create	Operational	N	N
109	SMB2 Response Close	Operational	N	N
110	SMB2 Response Flush	Operational	N	N
111	SMB2 Response Read	Operational	N	N
112	SMB2 Response Write	Operational	N	N
113	SMB2 Response Break Oplock	Operational	N	N
115	SMB2 Response Acknowledge Break Lease	Operational	N	N
116	SMB2 Response Lock	Operational	N	N
117	SMB2 Response Ioctl	Operational	N	N
118	SMB2 Response Query Directory	Operational	N	N
119	SMB2 Response Change Notify	Operational	N	N
120	SMB2 Response Query Info	Operational	N	N
121	SMB2 Response Set Info	Operational	N	N
122	SMB2 Response Error	Operational	N	N
201	VSMBNET Read segment length	Operational	N	N
202	VSMBNET Read segment	Operational	N	N
203	VSMBNET write segment	Operational	N	N
204	VMId: VSMB Direct Map Section Created GPA Index GpaPageIndex PageCount	Operational	N	N
204	VMId: VSMB Direct Map Section Created GPA Index GpaPageIndex PageCount …	Microsoft-Windows-Hyper-V-Worker-Operational	N	N
205	VMId: VSMB Direct Map Section destroyed GPA Index	Operational	N	N
205	VMId: VSMB Direct Map Section destroyed GPA Index GpaPageIndex.	Microsoft-Windows-Hyper-V-Worker-Operational	N	N
206	VMId: VSMB Dataless CIMFs Direct Map Request failed in share VMName for file …	Operational, Microsoft-Windows-Hyper-V-Worker-Operational	N	N
301	'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' …	Operational	N	N
301	'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' …	Microsoft-Windows-Hyper-V-Worker-Operational	Y	N
401	Event ID 401	Operational	N	N
401	Message.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
402	Event ID 402	Operational	N	N
402	Message.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N
403	Event ID 403	Operational	N	N
403	Message.	Microsoft-Windows-Hyper-V-Worker-Analytic	N	N

Event ID 1: [VMID VmId]

Channel: Operational
Opcode: Info

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 1: [VMID VmId] TraceData.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

[VMID %3] %1

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 2: [VMID VmId]

Channel: Operational
Opcode: Info

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 2: [VMID VmId] TraceData.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

[VMID %3] %1

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 3: [VMID VmId]

Channel: Operational
Opcode: Info

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 3: [VMID VmId] TraceData.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

[VMID %3] %1

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 4: [VMID VmId]

Channel: Operational
Opcode: Info

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 4: [VMID VmId] TraceData.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

[VMID %3] %1

Fields #

Name	Description
`TraceData` UnicodeString
`VmName` UnicodeString
`VmId` UnicodeString
`StackFrameCount` UInt32
`StackFrame` Pointer
`ModuleCount` UInt32
`Module` Int32

Event ID 101: SMB2 Response Negotiate

Channel: Operational
Task: Smb2ResponseNegotiate

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 102: SMB2 Response Session Setup

Channel: Operational
Task: Smb2ResponseSessionSetup

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 103: SMB2 Response Logoff

Channel: Operational
Task: Smb2ResponseLogoff

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 104: SMB2 Response Tree Connect

Channel: Operational
Task: Smb2ResponseTreeConnect

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`ShareType` UInt8
`ShareFlags` UInt32
`Capabilities` UInt32
`MaximalAccess` UInt32

Event ID 105: SMB2 Response Tree Disconnect

Channel: Operational
Task: Smb2ResponseTreeDisconnect

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 106: SMB2 Response Echo

Channel: Operational
Task: Smb2ResponseEcho

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 108: SMB2 Response Create

Channel: Operational
Task: Smb2ResponseCreate

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`AllocationSize` UInt64
`FileNameLength` UInt16
`FileName` UnicodeString

Event ID 109: SMB2 Response Close

Channel: Operational
Task: Smb2ResponseClose

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`AllocationSize` UInt64
`FileNameLength` UInt16
`FileName` UnicodeString

Event ID 110: SMB2 Response Flush

Channel: Operational
Task: Smb2ResponseFlush

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`AllocationSize` UInt64
`FileNameLength` UInt16
`FileName` UnicodeString

Event ID 111: SMB2 Response Read

Channel: Operational
Task: Smb2ResponseRead

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`LengthRead` UInt32

Event ID 112: SMB2 Response Write

Channel: Operational
Task: Smb2ResponseWrite

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`LengthWritten` UInt32
`Remaining` UInt32
`WriteChannelInfoOffset` UInt16
`WriteChannelInfoLength` UInt16

Event ID 113: SMB2 Response Break Oplock

Channel: Operational
Task: Smb2ResponseBreakOplock

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`OplockLevel` UInt8
`FileId` UInt64

Event ID 115: SMB2 Response Acknowledge Break Lease

Channel: Operational
Task: Smb2ResponseAcknowledgeBreakLease

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`LeaseFlags` UInt32
`LeaseState` UInt32
`LeaseDuration` Int64
`LeaseKey` GUID

Event ID 116: SMB2 Response Lock

Channel: Operational
Task: Smb2ResponseLock

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 117: SMB2 Response Ioctl

Channel: Operational
Task: Smb2ResponseIoctl

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`ControlCode` UInt32
`IoctlFlags` UInt32
`FileId` UInt64

Event ID 118: SMB2 Response Query Directory

Channel: Operational
Task: Smb2ResponseQueryDirectory

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`Infoclass` UInt64

Event ID 119: SMB2 Response Change Notify

Channel: Operational
Task: Smb2ResponseChangeNotify

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 120: SMB2 Response Query Info

Channel: Operational
Task: Smb2ResponseQueryInfo

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`InfoType` UInt32
`InfoClass` UInt32
`AllocationSize` UInt64
`FileNameLength` UInt16
`FileName` UnicodeString

Event ID 121: SMB2 Response Set Info

Channel: Operational
Task: Smb2ResponseSetInfo

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64
`InfoType` UInt32
`InfoClass` UInt32
`AllocationSize` UInt64
`FileNameLength` UInt16
`FileName` UnicodeString

Event ID 122: SMB2 Response Error

Channel: Operational
Task: Smb2ResponseError

Fields #

Name	Description
`SessionId` UInt64
`ProcessId` UInt32
`TreeId` UInt32
`MessageId` UInt64
`MasterMessageId` UInt64
`Command` UInt16
`CreditsGranted` UInt16
`Flags` UInt32
`Status` UInt32	NTSTATUS reference
`ResponseTime_QPC` UInt64

Event ID 201: VSMBNET Read segment length

Channel: Operational
Task: VSmbnetReadSegmentLength

Fields #

Name	Description
`LengthRead` UInt32
`ResponseTime_QPC` UInt64

Event ID 202: VSMBNET Read segment

Channel: Operational
Task: VSmbnetReadSegment

Fields #

Name	Description
`LengthRead` UInt32
`ResponseTime_QPC` UInt64

Event ID 203: VSMBNET write segment

Channel: Operational
Task: VSmbnetWriteSegment

Fields #

Name	Description
`LengthWrite` UInt32
`ResponseTime_QPC` UInt64

Event ID 204: VMId: VSMB Direct Map Section Created GPA Index GpaPageIndex PageCount

Channel: Operational
Task: VSmbCreateDirectMapSection

Description

: VSMB Direct Map Section Created GPA Index PageCount.

Fields #

Name	Description
`VMId` UnicodeString
`GpaPageIndex` UInt64
`PageCount` UInt64

Event ID 204: VMId: VSMB Direct Map Section Created GPA Index GpaPageIndex PageCount PageCount.

Channel: Microsoft-Windows-Hyper-V-Worker-Operational
Task: VSmbCreateDirectMapSection

Message #

%1: VSMB Direct Map Section Created GPA Index %2 PageCount %3

Fields #

Name	Description
`VMId` UnicodeString
`GpaPageIndex` UInt64
`PageCount` UInt64

Event ID 205: VMId: VSMB Direct Map Section destroyed GPA Index

Channel: Operational
Task: VSmbDestroyDirectMapSection

Description

: VSMB Direct Map Section destroyed GPA Index.

Fields #

Name	Description
`VMId` UnicodeString
`GpaPageIndex` UInt64
`PageCount` UInt64

Event ID 205: VMId: VSMB Direct Map Section destroyed GPA Index GpaPageIndex.

Channel: Microsoft-Windows-Hyper-V-Worker-Operational
Task: VSmbDestroyDirectMapSection

Message #

%1: VSMB Direct Map Section destroyed GPA Index %2

Fields #

Name	Description
`VMId` UnicodeString
`GpaPageIndex` UInt64
`PageCount` UInt64

Event ID 206: VMId: VSMB Dataless CIMFs Direct Map Request failed in share VMName for file SharePath due to size mismatch

Channel: Operational, Microsoft-Windows-Hyper-V-Worker-Operational
Opcode: Info

Description

: VSMB Dataless CIMFs Direct Map Request failed in share for file due to size mismatch. Expected: . Actual . The CIM file may need to be recreated.

Fields #

Name	Description
`VMId` UnicodeString
`VMName` UnicodeString
`SharePath` UnicodeString
`FileRelativePath` UnicodeString
`ExpectedSize` UInt64
`ActualSize` UInt64

Event ID 301: 'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' ShareFlags:

Channel: Operational
Opcode: Info

Description

'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' ShareFlags: ShareFlags. (Virtual machine ID VMId).

Fields #

Name	Description
`VMId` UnicodeString
`VMName` UnicodeString
`ShareName` UnicodeString
`SharePath` UnicodeString
`ShareFlags` UInt64
`ShareJson` UnicodeString

Event ID 301: 'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' ShareFlags: ShareFlags.

Channel: Microsoft-Windows-Hyper-V-Worker-Operational
Level: Informational
Opcode: Info

Description

'VMName': VSMB Share is creating ShareName: 'ShareName' SharePath: 'SharePath' ShareFlags: ShareFlags. (Virtual machine ID VMId).

Message #

'%2': VSMB Share is creating ShareName: '%3' SharePath: '%4' ShareFlags: %5. (Virtual machine ID %1)

Fields #

Name	Description
`VMId` UnicodeString
`VMName` UnicodeString
`ShareName` UnicodeString
`SharePath` UnicodeString
`ShareFlags` UInt64
`ShareJson` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Hyper-V-VSmb",
    "guid": "7B0EA079-E3BC-424A-B2F0-E3D8478D204B",
    "event_source_name": "",
    "event_id": 301,
    "version": 1,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": 2305843009213693968,
    "time_created": "2026-03-13T20:08:13.013130+00:00",
    "event_record_id": 1,
    "correlation": {
      "ActivityID": "A5B814C5-B324-0005-441D-B8A524B3DC01"
    },
    "execution": {
      "process_id": 9752,
      "thread_id": 8468
    },
    "channel": "Microsoft-Windows-Hyper-V-Worker-Operational",
    "computer": "LAB-WIN11.ludus.domain",
    "security": {
      "user_id": "S-1-5-83-1-754131803-1256623942-3691508397-1420384594"
    }
  },
  "event_data": {
    "VMId": "2CF3235B-8F46-4AE6-ADF2-07DC5259A954",
    "VMName": "2cf3235b-8f46-4ae6-adf2-07dc5259a954",
    "ShareName": "os",
    "SharePath": "C:\\ProgramData\\Microsoft\\Windows\\Containers\\BaseImages\\a132399d-901b-4af5-af28-9bf0fed54acd\\BaseLayer\\Files",
    "ShareFlags": 16867473,
    "ShareJson": {
      "Name": "os",
      "Path": "C:\\ProgramData\\Microsoft\\Windows\\Containers\\BaseImages\\a132399d-901b-4af5-af28-9bf0fed54acd\\BaseLayer\\Files",
      "Options": {
        "ReadOnly": true,
        "TakeBackupPrivilege": true,
        "NoLocks": true,
        "ReparseBaseLayer": true,
        "PseudoOplocks": true,
        "PseudoDirnotify": true,
        "SupportCloudFiles": true
      }
    }
  },
  "message": ""
}

Event ID 401

Channel: Operational
Opcode: Info

Fields #

Name	Description
`Message` AnsiString

Event ID 401: Message.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

%1

Fields #

Name	Description
`Message` AnsiString

Event ID 402

Channel: Operational
Opcode: Info

Fields #

Name	Description
`Message` AnsiString

Event ID 402: Message.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

%1

Fields #

Name	Description
`Message` AnsiString

Event ID 403

Channel: Operational
Opcode: Info

Fields #

Name	Description
`Message` AnsiString

Event ID 403: Message.

Channel: Microsoft-Windows-Hyper-V-Worker-Analytic
Opcode: Info

Message #

%1

Fields #

Name	Description
`Message` AnsiString

Provenance

ETW provider GUID 7b0ea079-e3bc-424a-b2f0-e3d8478d204b

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

Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02 — Manifest XML pack, 2.0 MB