First Occurrence of User Agent For a GitHub Personal Access Token (PAT)

Elastic Stack Serverless Security

Detects a new user agent used for a GitHub PAT not previously seen in the last 14 days.

Rule type: new_terms

Rule indices:

• logs-github.audit-*

Severity: low

Risk score: 21

Runs every: 5m

Searches indices from: now-9m (https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#date-math[Date Math format], see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

• Domain: Cloud
• Use Case: Threat Detection
• Use Case: UEBA
• Tactic: Initial Access
• Rule Type: BBR
• Data Source: Github

Version: 204

Rule authors:

• Elastic

Rule license: Elastic License v2

event.dataset:"github.audit" and event.category:"configuration" and
github.user_agent:* and github.hashed_token:* and
github.programmatic_access_type:("OAuth access token" or "Fine-grained personal access token")

Framework: MITRE ATT&CKTM

• Tactic:

  • Name: Initial Access
  • ID: TA0001
  • Reference URL: https://attack.mitre.org/tactics/TA0001/

• Technique:

  • Name: Valid Accounts
  • ID: T1078
  • Reference URL: https://attack.mitre.org/techniques/T1078/

• Sub-technique:

  • Name: Cloud Accounts
  • ID: T1078.004
  • Reference URL: https://attack.mitre.org/techniques/T1078/004/