splApache-2.0from splunk/security_content

Windows Event Log Cleared

The following analytic detects the clearing of Windows event logs by identifying Windows Security Event ID 1102 or System log event 104. This detection leverages Windows event logs to monitor for log clearing activities. Such behavior is significant as it may indicate an attempt to cover tracks after malicious activities. If confirmed malicious, this action could hinder forensic investigations and allow attackers to persist undetected, making it crucial to investigate further and correlate with other alerts and data sources.

Quality

FP risk

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Rule sourcedetections/endpoint/windows_event_log_cleared.yml

(`wineventlog_security` EventCode=1102)
OR
(`wineventlog_system` EventCode=104)
| stats count min(_time) as firstTime max(_time) as lastTime
  by action change_type dest dvc object_category signature_id status user vendor_product object EventCode
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_event_log_cleared_filter`