First Occurrence of Private Repo Event from Specific GitHub Personal Access Token (PAT)

[metadata]
bypass_bbr_timing = true
creation_date = "2023/10/11"
integration = ["github"]
maturity = "production"
updated_date = "2026/03/24"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = "Detects a new private repo interaction for a GitHub PAT not seen in the last 14 days.\n"
from = "now-9m"
index = ["logs-github.audit-*"]
language = "kuery"
license = "Elastic License v2"
name = "First Occurrence of Private Repo Event from Specific GitHub Personal Access Token (PAT)"
risk_score = 21
rule_id = "1e9b271c-8caa-4e20-aed8-e91e34de9283"
severity = "low"
tags = [
    "Domain: Cloud",
    "Use Case: Threat Detection",
    "Use Case: UEBA",
    "Tactic: Execution",
    "Rule Type: BBR",
    "Data Source: Github",
]
timestamp_override = "event.ingested"
type = "new_terms"

query = '''
event.dataset:"github.audit" and event.category:"configuration" and
github.repo:* and github.hashed_token:* and
github.programmatic_access_type:("OAuth access token" or "Fine-grained personal access token") and 
github.repository_public:false
'''


[[rule.threat]]
framework = "MITRE ATT&CK"

[[rule.threat.technique]]
id = "T1648"
name = "Serverless Execution"
reference = "https://attack.mitre.org/techniques/T1648/"

[rule.threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"

[[rule.threat]]
framework = "MITRE ATT&CK"

[[rule.threat.technique]]
id = "T1078"
name = "Valid Accounts"
reference = "https://attack.mitre.org/techniques/T1078/"

[[rule.threat.technique.subtechnique]]
id = "T1078.004"
name = "Cloud Accounts"
reference = "https://attack.mitre.org/techniques/T1078/004/"

[rule.threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"
[rule.new_terms]
field = "new_terms_fields"
value = ["github.hashed_token", "github.repo"]
[[rule.new_terms.history_window_start]]
field = "history_window_start"
value = "now-5d"