Event ID 4723 — An attempt was made to change an account's password.
Description
An attempt was made to change an account's password.
Message #
Fields #
| Name | Description |
|---|---|
Account_Name | [Target Account] Account Name. |
Account_Domain | [Target Account] Account Domain. |
Security_ID | [Target Account] Security ID. |
Security_ID | [Subject] Security ID. |
Account_Name | [Subject] Account Name. |
Account_Domain | [Subject] Account Domain. |
Logon_ID | [Subject] Logon ID. |
Example Event #
{
"system": {
"provider": "Microsoft-Windows-Security-Auditing",
"guid": "54849625-5478-4994-A5BA-3E3B0328C30D",
"event_source_name": "",
"event_id": 4723,
"version": 0,
"level": 0,
"task": 13824,
"opcode": 0,
"keywords": 9227875636482146304,
"time_created": "2021-12-04T22:47:47.872773Z",
"event_record_id": 233289145,
"correlation": {
"#attributes": {
"ActivityID": "D96638DA-E4F9-0001-F038-66D9F9E4D701"
}
},
"execution": {
"process_id": 596,
"thread_id": 3492
},
"channel": "Security",
"computer": "rootdc1.offsec.lan",
"security": {
"user_id": ""
}
},
"event_data": {
"TargetUserName": "hacker2",
"TargetDomainName": "OFFSEC",
"TargetSid": "S-1-5-21-4230534742-2542757381-3142984815-1242",
"SubjectUserSid": "S-1-5-21-4230534742-2542757381-3142984815-1111",
"SubjectUserName": "admmig",
"SubjectDomainName": "OFFSEC",
"SubjectLogonId": "0x10e7c4430",
"PrivilegeList": "-"
}
}
Detection Patterns #
User Account
Security-Auditing Event ID 4720: A user account was created.ANDEvent ID 4722: A user account was enabled.ANDEvent ID 4723: An attempt was made to change an account's password.ANDEvent ID 4724: An attempt was made to reset an account's password.ANDEvent ID 4725: A user account was disabled.ANDEvent ID 4726: A user account was deleted.ANDEvent ID 4728: A member was added to a security-enabled global group.ANDEvent ID 4732: A member was added to a security-enabled local group.ANDEvent ID 4733: A member was removed from a security-enabled local group.ANDEvent ID 4738: A user account was changed.ANDEvent ID 4743: A computer account was deleted.ANDEvent ID 4780: The ACL was set on accounts which are members of administrators groups.
6 rules
References #
- Microsoft Learn https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4723
- Microsoft Learn Audit Policy https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/audit-user-account-management
- Ultimate Windows Security https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4723
- Example event sourced from https://github.com/Yamato-Security/hayabusa-sample-evtx