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Cisco Modify Configuration — Sigma Rule

Sigma rule 671ffc77-50a7-464f-9e3d-9ea2b493b26b. Cisco Modify Configuration — Sigma Rule. Modifications to a config that will serve an adversary's impacts or persistence

Rule metadata and linked tags

Author: Austin Clark. Source status: test; severity: medium. Source dates: 2019-08-12 / 2025-04-28.

{
  "product": "cisco",
  "service": "aaa"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: e94d03664cdd475c28b191c847699e3ce807a236025c430b96d351b024b5a7a1

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Cisco Modify Configuration
id: 671ffc77-50a7-464f-9e3d-9ea2b493b26b
status: test
description: Modifications to a config that will serve an adversary's impacts or persistence
author: Austin Clark
date: 2019-08-12
modified: 2025-04-28
tags:
    - attack.privilege-escalation
    - attack.execution
    - attack.persistence
    - attack.impact
    - attack.t1490
    - attack.t1505
    - attack.t1565.002
    - attack.t1053
logsource:
    product: cisco
    service: aaa
detection:
    keywords:
        - 'ip http server'
        - 'ip https server'
        - 'kron policy-list'
        - 'kron occurrence'
        - 'policy-list'
        - 'access-list'
        - 'ip access-group'
        - 'archive maximum'
        - 'ntp server'
    condition: keywords
falsepositives:
    - Legitimate administrators may run these commands
level: medium

Original YAML and metadata in JSON

False positives

  • Legitimate administrators may run these commands

Source references

No reviewed association in this snapshot.

Connected ecosystem references

Exact source-tagged techniques

Telemetry review

Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.

Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.