LoFP / it is possible the event logging service gets shut down due to system errors or legitimately administration tasks. filter as needed.

Techniques

• T1070
• T1070.001

Sample rules

Suspicious Event Log Service Behavior

• source: splunk
• technicques:
  • T1070
  • T1070.001

Description

The following analytic utilizes Windows Event ID 1100 to identify when Windows event log service is shutdown. Note that this is a voluminous analytic that will require tuning or restricted to specific endpoints based on criticality. This event generates every time Windows Event Log service has shut down. It also generates during normal system shutdown. During triage, based on time of day and user, determine if this was planned. If not planned, follow through with reviewing parallel alerts and other data sources to determine what else may have occurred.

Detection logic

(`wineventlog_security` EventCode=1100) 
| stats count min(_time) as firstTime max(_time) as lastTime by dest name EventCode 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)`
| `suspicious_event_log_service_behavior_filter`