SecurityLogCleared.md

Security Log Cleared

Query Information

MITRE ATT&CK Technique(s)

Technique ID	Title	Link
T1070.001	Indicator Removal: Clear Windows Event Logs	https://attack.mitre.org/techniques/T1070/001/

Description

An attacker might delete the Security Log to hide the malicious activities. This rule only triggers on the deletion of the Security Events, however adversaries may also delete application, setup and system logs. The Windows Event log can become full, clearing the eventlog causes this rule to be triggered.

Risk

An actor removes the security log to hide malicious activities.

References

• https://content.fireeye.com/apt-41/rpt-apt41
• https://www.welivesecurity.com/2016/01/03/blackenergy-sshbeardoor-details-2015-attacks-ukrainian-news-media-electric-industry/

Defender XDR

DeviceEvents
| where ActionType == 'SecurityLogCleared'
| project Timestamp, DeviceName, ActionType

Sentinel

DeviceEvents
| where ActionType == 'SecurityLogCleared'
| project Timestamp, DeviceName, ActionType