A hardware device was disabled.
Same context as 6419 — device was actually disabled (vs. request only).
Alert: security hardware disabled. Alert: network adapter disabled to affect monitoring.
SubjectUserNameTargetUserNameLogonTypeIpAddressWorkstationName Starting points — adapt the log source, projected fields and thresholds for your environment.
SecurityEvent
| where EventID == 6420 // A device was disabled
| project TimeGenerated, Computer, SubjectUserName, TargetUserName, LogonType, IpAddress, WorkstationName
| sort by TimeGenerated descindex=* sourcetype="WinEventLog:Security" EventCode=6420
| stats count earliest(_time) as first_seen latest(_time) as last_seen by ComputerName
| sort - count `# A device was disabled — add EventData fields: SubjectUserName, TargetUserName, LogonType, IpAddress`A device was disabled. A hardware device was disabled.
Event 6420 is written to the Security channel by Microsoft-Windows-Security-Auditing. Advanced Audit Policy — enable the 'Plug and Play' subcategory (Success and/or Failure).
Alert: security hardware disabled. Alert: network adapter disabled to affect monitoring.