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Microsoft-Windows-Security-Auditing › Event 5142

Event ID 5142 — A network share object was added.

Provider
Microsoft-Windows-Security-Auditing
Channel
Security
Audit Policy
Object Access → File Share
Collection Priority
Recommended (Microsoft-WEF, others)
Opcode
Info

Description

A network share object was added.

Message #

A network share object was added.
	
Subject:
	Security ID: %1
	Account Name: %2
	Account Domain: %3
	Logon ID: %4

Share Information:	
	Share Name: %5
	Share Path: %6

Fields #

NameDescription
SubjectUserSid SID[Subject] Security ID
SubjectUserName UnicodeString[Subject] Account Name
SubjectDomainName UnicodeString[Subject] Account Domain
SubjectLogonId HexInt64[Subject] Logon ID
ShareName UnicodeString[Share Information] Share Name
ShareLocalPath UnicodeString[Share Information] Share Path

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Security-Auditing",
    "guid": "54849625-5478-4994-A5BA-3E3B0328C30D",
    "event_source_name": "",
    "event_id": 5142,
    "version": 0,
    "level": 0,
    "task": 12808,
    "opcode": 0,
    "keywords": 9232379236109516800,
    "time_created": "2019-03-17T19:30:30.324836Z",
    "event_record_id": 6273,
    "correlation": {},
    "execution": {
      "process_id": 4,
      "thread_id": 64
    },
    "channel": "Security",
    "computer": "PC04.example.corp",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "SubjectUserSid": "S-1-5-21-3583694148-1414552638-2922671848-1000",
    "SubjectUserName": "IEUser",
    "SubjectDomainName": "PC04",
    "SubjectLogonId": "0x128a9",
    "ShareName": "\\\\*\\PRINT",
    "ShareLocalPath": "c:\\windows\\system32"
  }
}

Community Notes #

May be a prelude to data exfiltration. Includes named pipes and IPC$ (confirm if the client address is external/unexpected). May indicate share enumeration and directory walking prior to exfiltration. The RelativeTargetName field may show the original file name and path on the attacker's machine.

References #