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Potential Shell via Web Server
editPotential Shell via Web Server
editIdentifies suspicious commands executed via a web server, which may suggest a vulnerability and remote shell access.
Rule type: query
Rule indices:
- auditbeat-*
- 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:
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- Persistence
Version: 12
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editevent.category:process and event.type:(start or process_started) and
process.name:(bash or dash or ash or zsh or "python*" or "perl*" or "php*") and
process.parent.name:("apache" or "nginx" or "www" or "apache2" or "httpd" or "www-data")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Server Software Component
- ID: T1505
- Reference URL: https://attack.mitre.org/techniques/T1505/
-
Sub-technique:
- Name: Web Shell
- ID: T1505.003
- Reference URL: https://attack.mitre.org/techniques/T1505/003/