Attempt to Disable Syslog Serviceedit
Adversaries may attempt to disable the syslog service in an attempt to an attempt to disrupt event logging and evade detection by security controls.
Rule type: query
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
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
- Threat Detection
- Defense Evasion
Version: 100 (version history)
Added (Elastic Stack release): 7.8.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Rule queryedit
event.category:process and event.type:(start or process_started) and ((process.name:service and process.args:stop) or (process.name:chkconfig and process.args:off) or (process.name:systemctl and process.args:(disable or stop or kill))) and process.args:(syslog or rsyslog or "syslog-ng")
Threat mappingedit
Framework: MITRE ATT&CKTM
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Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
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Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
Rule version historyedit
- Version 100 (8.5.0 release)
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- Formatting only
- Version 8 (8.4.0 release)
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- Formatting only
- Version 7 (7.12.0 release)
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- Formatting only
- Version 6 (7.11.2 release)
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- Formatting only
- Version 5 (7.11.0 release)
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- Formatting only
- Version 4 (7.10.0 release)
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- Formatting only
- Version 3 (7.9.1 release)
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- Formatting only
- Version 2 (7.9.0 release)
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Updated query, changed from:
event.action:(executed or process_started) and ((process.name:service and process.args:stop) or (process.name:chkconfig and process.args:off) or (process.name:systemctl and process.args:(disable or stop or kill))) and process.args:(syslog or rsyslog or "syslog-ng")
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