Credentials from Credential Manager were backed up (exported).
Credential Manager backup exports stored credentials to a file — a primary data theft vector. Attackers export credentials for offline cracking or direct use.
Alert on every occurrence. Verify the export was authorized and destination is secure.
SubjectUserNameTargetUserNameLogonTypeIpAddressWorkstationName | Tactic | Technique |
|---|---|
| Credential Access | Windows Credential Manager (T1555.004) |
Starting points — adapt the log source, projected fields and thresholds for your environment.
SecurityEvent
| where EventID == 5376 // Credential Manager credentials were backed up
| project TimeGenerated, Computer, SubjectUserName, TargetUserName, LogonType, IpAddress, WorkstationName
| sort by TimeGenerated desc
index=* sourcetype="WinEventLog:Security" EventCode=5376
| stats count earliest(_time) as first_seen latest(_time) as last_seen by ComputerName
| sort - count `# Credential Manager credentials were backed up — add EventData fields: SubjectUserName, TargetUserName, LogonType, IpAddress`
Credential Manager credentials were backed up. Credentials from Credential Manager were backed up (exported).
Event 5376 is written to the Security channel by Microsoft-Windows-Security-Auditing. Advanced Audit Policy — enable the 'Credential Manager' subcategory (Success and/or Failure).
Event 5376 is associated with: Windows Credential Manager (T1555.004).
Alert on every occurrence. Verify the export was authorized and destination is secure.