4716 Security log · Policy Change high severity low volume

Windows Event ID 4716 — Trusted domain information was changed

Information about a trusted domain was modified.

Why event 4716 matters

Modifying trust settings to weaken trust transitivity or enable SID history injection. Attackers with Domain Admin can modify trust settings for forest-wide impact.

How to detect it

Alert on every occurrence. Verify with change management.

Log source
Security
Advanced Audit Policy — enable the 'Policy Change' subcategory (Success and/or Failure).
Fields to pivot on
SubjectUserNameTargetUserNameLogonTypeIpAddressWorkstationName

MITRE ATT&CK mapping

Tactic Technique
Persistence Domain Trust Modification (T1484.002)

Detection queries

Starting points — adapt the log source, projected fields and thresholds for your environment.

Sentinel / Defender KQL
SecurityEvent
| where EventID == 4716   // Trusted domain information was changed
| project TimeGenerated, Computer, SubjectUserName, TargetUserName, LogonType, IpAddress, WorkstationName
| sort by TimeGenerated desc
Splunk SPL
index=* sourcetype="WinEventLog:Security" EventCode=4716
| stats count earliest(_time) as first_seen latest(_time) as last_seen by ComputerName
| sort - count   `# Trusted domain information was changed — add EventData fields: SubjectUserName, TargetUserName, LogonType, IpAddress`
Hunt event 4716 in Sentinel/Defender →
Build a KQL query for this event in the KQL Query Builder.
Search all event IDs →
Open the interactive Windows Event ID lookup.

Related Policy Change events

4698 A scheduled task was created 4699 A scheduled task was deleted 4700 A scheduled task was enabled 4701 A scheduled task was disabled 4702 A scheduled task was updated 4703 A token right was adjusted 4704 A user right was assigned 4705 A user right was removed 4706 A new trust was created to a domain 4707 A trust to a domain was removed 4713 Kerberos policy was changed 4714 Encrypted data recovery policy was changed

Frequently asked questions

What is Windows Event ID 4716?

Trusted domain information was changed. Information about a trusted domain was modified.

Which log records event 4716?

Event 4716 is written to the Security channel by Microsoft-Windows-Security-Auditing. Advanced Audit Policy — enable the 'Policy Change' subcategory (Success and/or Failure).

What MITRE ATT&CK techniques map to event 4716?

Event 4716 is associated with: Domain Trust Modification (T1484.002).

How do you detect activity around event 4716?

Alert on every occurrence. Verify with change management.