Detection rules › Sigma
Github New Secret Created
Detects when a user creates action secret for the organization, environment, codespaces or repository.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1078.004 Valid Accounts: Cloud Accounts |
| Persistence | T1078.004 Valid Accounts: Cloud Accounts |
| Privilege Escalation | T1078.004 Valid Accounts: Cloud Accounts |
| Stealth | T1078.004 Valid Accounts: Cloud Accounts |
Event coverage
Rule body yaml
title: Github New Secret Created
id: f9405037-bc97-4eb7-baba-167dad399b83
status: test
description: Detects when a user creates action secret for the organization, environment, codespaces or repository.
author: Muhammad Faisal (@faisalusuf)
date: 2023-01-20
references:
- https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/reviewing-the-audit-log-for-your-organization#audit-log-actions
tags:
- attack.persistence
- attack.privilege-escalation
- attack.initial-access
- attack.stealth
- attack.t1078.004
logsource:
product: github
service: audit
definition: 'Requirements: The audit log streaming feature must be enabled to be able to receive such logs. You can enable following the documentation here: https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/streaming-the-audit-log-for-your-enterprise#setting-up-audit-log-streaming'
detection:
selection:
action:
- 'codespaces.create_an_org_secret'
- 'environment.create_actions_secret'
- 'org.create_actions_secret'
- 'repo.create_actions_secret'
condition: selection
falsepositives:
- This detection cloud be noisy depending on the environment. It is recommended to keep a check on the new secrets when created and validate the "actor".
level: low
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
action:
- 'codespaces.create_an_org_secret'
- 'environment.create_actions_secret'
- 'org.create_actions_secret'
- 'repo.create_actions_secret'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
action | eq |
|