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First Occurrence of User-Agent For a GitHub User

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First Occurrence of User-Agent For a GitHub User

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Detects a new user agent used for a GitHub user 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 (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: 1

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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event.dataset:"github.audit" and event.category:"configuration" and
github.user_agent:* and user.name:*

Framework: MITRE ATT&CK^TM

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/

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