Possible Cisco Enumeration (via aaa)
This rule detects information about network devices that is not stored in config files
SigmalowNetworkv1
sigma
possible-cisco-enumeration-via-aaa
title: Possible Cisco Enumeration (via aaa)
id: f66597b4-b813-5dfd-b51c-26adc81f78c6
status: stable
description: This rule detects information about network devices that is not stored in config files
references:
- https://attack.mitre.org/techniques/T1124/
- https://attack.mitre.org/techniques/T1033/
- https://attack.mitre.org/techniques/T1049/
- https://attack.mitre.org/techniques/T1016/
- https://attack.mitre.org/techniques/T1082/
- https://attack.mitre.org/techniques/T1018/
- https://attack.mitre.org/techniques/T1057/
- https://attack.mitre.org/techniques/T1201/
- https://attack.mitre.org/techniques/T1083/
- https://www.cisco.com/c/en/us/td/docs/server_nw_virtual/2-5_release/command_reference/show.html
author: Huntrule Team
date: 2026-04-20
tags:
- attack.discovery
- attack.t1083
- attack.t1201
- attack.t1057
- attack.t1018
- attack.t1082
- attack.t1016
- attack.t1049
- attack.t1033
- attack.t1124
logsource:
product: cisco
service: aaa
detection:
keywords:
- 'dir'
- 'show arp'
- 'show cdp'
- 'show clock'
- 'show ip interface'
- 'show ip route'
- 'show ip sockets'
- 'show processes'
- 'show ssh'
- 'show users'
- 'show version'
condition: keywords
falsepositives:
- Unknown
level: low
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.