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← cd ~/events
// events/4781 · Accounts

Event ID 4781The name of an account was changed

A user or computer sAMAccountName was changed. Computer account renames are only logged on domain controllers.

LogSecurity
SourceMicrosoft-Windows-Security-Auditing
AreaAccounts

What to check

For high-value user, computer or local accounts, monitor this event on the Target Account Security ID.

Find it with PowerShell

Run on the machine that logs it, as an administrator.

powershell2 lines
Get-WinEvent -FilterHashtable @{ LogName = 'Security'; Id = 4781 } -MaxEvents 50 |
    Format-List TimeCreated, Id, Message

Hunt for it in Sentinel or Log Analytics

Security events land in the SecurityEvent table when you collect them with the Windows Security Events connector or a data collection rule.

kql5 lines
SecurityEvent
| where TimeGenerated > ago(7d)
| where EventID == 4781
| project TimeGenerated, Computer, Account, Activity
| order by TimeGenerated desc

Related Accounts events

Search all 123 event IDs →

Sources