Attempt to Disable Auditd Service

Last updated 7 days ago on 2025-01-24

Created 5 months ago on 2024-08-28

About

Adversaries may attempt to disable the Auditd service to evade detection. Auditd is a Linux service that provides system auditing and logging. Disabling the Auditd service can prevent the system from logging important security events, which can be used to detect malicious activity.

Tags

Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: Defense EvasionData Source: Elastic DefendData Source: Elastic EndgameData Source: CrowdstrikeData Source: SentinelOneLanguage: eql

Severity

low

Risk Score

MITRE ATT&CK™

Defense Evasion (TA0005)(opens in a new tab or window)

↳ Impair Defenses (T1562)(opens in a new tab or window)

License

Elastic License v2(opens in a new tab or window)

Definition

Rule Type

Event Correlation Rule

Integration Pack

Prebuilt Security Detection Rules

Index Patterns

logs-endpoint.events.process*endgame-*logs-crowdstrike.fdr*logs-sentinel_one_cloud_funnel.*

Related Integrations

endpoint(opens in a new tab or window)

crowdstrike(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

Query

process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "exec_event", "start", "ProcessRollup2") and (
  (process.name == "service" and process.args == "stop") or
  (process.name == "chkconfig" and process.args == "off") or
  (process.name == "systemctl" and process.args in ("disable", "stop", "kill"))
) and
process.args in ("auditd", "auditd.service") and 
not process.parent.name == "auditd.prerm"

Install detection rules in Elastic Security

Detect Attempt to Disable Auditd Service in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).