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Deletion of Bash Command Line Historyedit
Adversaries may attempt to clear the bash command line history in an attempt to evade detection or forensic investigations.
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
- Linux
Version: 2 (version history)
Added (Elastic Stack release): 7.9.0
Last modified (Elastic Stack release): 7.9.1
Rule authors: Elastic
Rule license: Elastic License
Rule queryedit
event.category:process AND event.type:(start or process_started) AND
process.name:rm AND
process.args:/\/(home\/.{1,255}|root)\/\.bash_history/
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Clear Command History
- ID: T1146
- Reference URL: https://attack.mitre.org/techniques/T1146/
Rule version historyedit
- Version 2 (7.9.1 release)
-
- Formatting only