IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Potential Shell via Web Serveredit
Identifies suspicious commands executed via a web server, which may suggest a vulnerability and remote shell access.
Rule type: query
Rule indices:
- auditbeat-*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time
)
Maximum signals per execution: 100
References:
Tags:
- Elastic
- Linux
Version: 2 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.6.1
Potential false positivesedit
Network monitoring or management products may have a web server component that runs shell commands as part of normal behavior.
Rule queryedit
process.name:bash and user.name:(apache or www or www-data) and event.action:executed
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/techniques/TA0003/
-
Technique:
- Name: Web Shell
- ID: T1100
- Reference URL: https://attack.mitre.org/techniques/T1100/
Rule version historyedit
- Version 2 (7.6.1 release)
-
Updated query, changed from:
process.name: bash and user.name: (apache or www or "wwww-data") and event.action:executed