Event ID 4735 — A security-enabled local group was changed.
Description
A security-enabled local group was changed.
Message #
Fields #
| Name | Description |
|---|---|
TargetUserName UnicodeString | [Group] Group Name. |
TargetDomainName UnicodeString | [Group] Group Domain. |
TargetSid SID | [Group] Security ID. |
SubjectUserSid SID | [Subject] Security ID. |
SubjectUserName UnicodeString | [Subject] Account Name. |
SubjectDomainName UnicodeString | [Subject] Account Domain. |
SubjectLogonId HexInt64 | [Subject] Logon ID. |
PrivilegeList UnicodeString | [Additional Information] Privileges. Privilege constants reference |
SamAccountName UnicodeString | [Changed Attributes] SAM Account Name. |
SidHistory UnicodeString | [Changed Attributes] SID History. |
Example Event #
{
"system": {
"provider": "Microsoft-Windows-Security-Auditing",
"guid": "54849625-5478-4994-A5BA-3E3B0328C30D",
"event_source_name": "",
"event_id": 4735,
"version": 0,
"level": 0,
"task": 13826,
"opcode": 0,
"keywords": 9232379236109516800,
"time_created": "2023-11-06T06:25:37.334332+00:00",
"event_record_id": 2847,
"correlation": {
"ActivityID": "F590C418-1079-0001-5BC5-90F57910DA01"
},
"execution": {
"process_id": 808,
"thread_id": 856
},
"channel": "Security",
"computer": "WinDev2310Eval",
"security": {
"user_id": ""
}
},
"event_data": {
"TargetUserName": "Device Owners",
"TargetDomainName": "Builtin",
"TargetSid": "S-1-5-32-583",
"SubjectUserSid": "S-1-5-18",
"SubjectUserName": "WINDEV2310EVAL$",
"SubjectDomainName": "WORKGROUP",
"SubjectLogonId": "0x3e7",
"PrivilegeList": "-",
"SamAccountName": "Device Owners",
"SidHistory": "-"
},
"message": ""
}
Detection Patterns #
Security-Auditing Event ID 4670: Permissions on an object were changed.ANDEvent ID 4727: A security-enabled global group was created.ANDEvent ID 4731: A security-enabled local group was created.ANDEvent ID 4734: A security-enabled local group was deleted.ANDEvent ID 4735: A security-enabled local group was changed.ANDEvent ID 4764: A group’s type was changed.
References #
- Microsoft Learn https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4735
- Microsoft Learn Audit Policy https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/audit-security-group-management
- Ultimate Windows Security https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4735
- Example event sourced from https://github.com/NextronSystems/evtx-baseline