Justin Ibarra
eeb8ab7744
* Expand timestamp_override tests
* removed timestamp_override from eql sequence rules
* add config entry for eql rules with beats index and t_o
* add timestamp_override to missing fields
Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml
(selectively cherry picked from commit 6bdfddac8e)
67 lines
2.1 KiB
TOML
67 lines
2.1 KiB
TOML
[metadata]
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creation_date = "2020/12/04"
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maturity = "production"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies instances of lower privilege accounts enumerating Administrator accounts or groups using built-in Windows
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tools.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Enumeration of Administrator Accounts"
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note = """## Config
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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"""
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risk_score = 21
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rule_id = "871ea072-1b71-4def-b016-6278b505138d"
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severity = "low"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Discovery"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type in ("start", "process_started") and
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(((process.name : "net.exe" or process.pe.original_file_name == "net.exe") or
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((process.name : "net1.exe" or process.pe.original_file_name == "net1.exe") and
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not process.parent.name : "net.exe")) and
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process.args : ("group", "user", "localgroup") and
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process.args : ("admin", "Domain Admins", "Remote Desktop Users", "Enterprise Admins", "Organization Management") and
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not process.args : "/add")
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or
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((process.name : "wmic.exe" or process.pe.original_file_name == "wmic.exe") and
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process.args : ("group", "useraccount"))
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1069"
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name = "Permission Groups Discovery"
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reference = "https://attack.mitre.org/techniques/T1069/"
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[[rule.threat.technique.subtechnique]]
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id = "T1069.002"
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name = "Domain Groups"
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reference = "https://attack.mitre.org/techniques/T1069/002/"
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[[rule.threat.technique]]
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id = "T1087"
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name = "Account Discovery"
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reference = "https://attack.mitre.org/techniques/T1087/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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