VMware ESXi - SSH Enable on ESXi Host

Back


Id	4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924
Rulename	VMware ESXi - SSH Enable on ESXi Host
Description	Detects when vim-cmd is used to enable SSH on an ESXi host
Severity	High
Tactics	LateralMovement
Techniques	T1021
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiSSHEnableOnHost.yaml
Version	1.0.0
Arm template	4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924.json

KQL

VMwareESXi
| where SyslogMessage has_all ("vim-cmd","hostsvc/enable_ssh")
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)

YAML

relevantTechniques:
- T1021
entityMappings:
- fieldMappings:
  - columnName: DstHostname
    identifier: FullName
  entityType: Host
- fieldMappings:
  - columnName: SrcUsername
    identifier: Name
  entityType: Account
triggerThreshold: 0
description: |
    'Detects when vim-cmd is used to enable SSH on an ESXi host'
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
triggerOperator: gt
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiSSHEnableOnHost.yaml
id: 4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924
queryFrequency: 10m
query: |
  VMwareESXi
  | where SyslogMessage has_all ("vim-cmd","hostsvc/enable_ssh")
  | extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
  | extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)  
severity: High
status: Available
queryPeriod: 10m
name: VMware ESXi - SSH Enable on ESXi Host
tactics:
- LateralMovement
kind: Scheduled

ARM