Elastic Agent Service Terminatededit
Identifies the Elastic endpoint agent has stopped and is no longer running on the host. Adversaries may attempt to disable security monitoring tools in an attempt to evade detection or prevention capabilities during an intrusion. This may also indicate an issue with the agent itself and should be addressed to ensure defensive measures are back in a stable state.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Linux
- OS: Windows
- OS: macOS
- Use Case: Threat Detection
- Tactic: Defense Evasion
- Data Source: Elastic Defend
Version: 106
Rule authors:
- Elastic
Rule license: Elastic License v2
Setupedit
Setup
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
events will not define event.ingested and default fallback for EQL rules was not added until version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
event.ingested to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
Rule queryedit
process where
/* net, sc or wmic stopping or deleting Elastic Agent on Windows */
(event.type == "start" and
process.name : ("net.exe", "sc.exe", "wmic.exe","powershell.exe","taskkill.exe","PsKill.exe","ProcessHacker.exe") and
process.args : ("stopservice","uninstall", "stop", "disabled","Stop-Process","terminate","suspend") and
process.args : ("elasticendpoint", "Elastic Agent","elastic-agent","elastic-endpoint"))
or
/* service or systemctl used to stop Elastic Agent on Linux */
(event.type == "end" and
(process.name : ("systemctl", "service") and
process.args : "elastic-agent" and
process.args : "stop")
or
/* pkill , killall used to stop Elastic Agent on Linux */
( event.type == "end" and process.name : ("pkill", "killall") and process.args: "elastic-agent")
or
/* Unload Elastic Agent extension on MacOS */
(process.name : "kextunload" and
process.args : "com.apple.iokit.EndpointSecurity" and
event.action : "end"))
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
-
Sub-technique:
- Name: Disable or Modify Tools
- ID: T1562.001
- Reference URL: https://attack.mitre.org/techniques/T1562/001/