Detection rules › Sigma
ESXi Syslog Configuration Change Via ESXCLI
Detects changes to the ESXi syslog configuration via "esxcli"
Known false positives
- Legitimate administrative activities
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | |
| Defense Impairment |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Linux | Event ID 1: Process Create |
Rule body
title: ESXi Syslog Configuration Change Via ESXCLI
id: 38eb1dbb-011f-40b1-a126-cf03a0210563
status: test
description: Detects changes to the ESXi syslog configuration via "esxcli"
references:
- https://support.solarwinds.com/SuccessCenter/s/article/Configure-ESXi-Syslog-to-LEM?language=en_US
- https://developer.broadcom.com/xapis/esxcli-command-reference/7.0.0/namespace/esxcli_system.html
author: Cedric Maurugeon
date: 2023-09-04
tags:
- attack.execution
- attack.defense-impairment
- attack.t1685
- attack.t1690
- attack.t1059.012
logsource:
category: process_creation
product: linux
detection:
selection:
Image|endswith: '/esxcli'
CommandLine|contains|all:
- 'system'
- 'syslog'
- 'config'
CommandLine|contains: ' set'
condition: selection
falsepositives:
- Legitimate administrative activities
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '/esxcli'
CommandLine|contains|all:
- 'system'
- 'syslog'
- 'config'
CommandLine|contains: ' set'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
Image | ends_with |
| field:"Image" kind:ends_with value:"/esxcli" |