IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
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-*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Linux
- Windows
- macOS
- Threat Detection
- Defense Evasion
Version: 1
Added (Elastic Stack release): 8.3.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
## Config 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 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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","Pro
cessHacker.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",
"stop")) or /* Unload Elastic Agent extension on MacOS */
(process.name : "kextunload" and process.args :
"com.apple.iokit.EndpointSecurity" and event.action : "end"))
Threat mappingedit
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/