Cisco Crypto Commands — Sigma Rule

Rule metadata and linked tags

Author: Austin Clark. Source status: test; severity: high. Source dates: 2019-08-12 / 2023-01-04.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 0876b77bfa952036a21803d35b378e3bf9f52417d1716dd67975a4f80c58bcf1

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 Crypto Commands
id: 1f978c6a-4415-47fb-aca5-736a44d7ca3d
status: test
description: Show when private keys are being exported from the device, or when new certificates are installed
references:
    - https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-a1-cr-book_chapter_0111.html
author: Austin Clark
date: 2019-08-12
modified: 2023-01-04
tags:
    - attack.credential-access
    - attack.defense-impairment
    - attack.t1553.004
    - attack.t1552.004
logsource:
    product: cisco
    service: aaa
detection:
    keywords:
        - 'crypto pki export'
        - 'crypto pki import'
        - 'crypto pki trustpoint'
    condition: keywords
falsepositives:
    - Not commonly run by administrators. Also whitelist your known good certificates
level: high

Original YAML and metadata in JSON

False positives

• Not commonly run by administrators. Also whitelist your known good certificates

Source references

• https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-a1-cr-book_chapter_0111.html