Jonhnathan
3d647feb8c
* [Rule Tuning] Windows Misc Tunings * ++ * Update defense_evasion_wsl_child_process.toml * Update execution_powershell_susp_args_via_winscript.toml --------- Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
60 lines
1.6 KiB
TOML
60 lines
1.6 KiB
TOML
[metadata]
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bypass_bbr_timing = true
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creation_date = "2023/10/10"
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maturity = "production"
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updated_date = "2026/02/19"
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[rule]
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author = ["Elastic"]
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building_block_type = "default"
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description = """
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This rule leverages alert data from various Discovery building block rules to alert on signals with unusual unique
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host.id and user.id entries.
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"""
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from = "now-9m"
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index = [".alerts-security.*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Deprecated - Unusual Discovery Activity by User"
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risk_score = 21
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rule_id = "cf575427-0839-4c69-a9e6-99fde02606f3"
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severity = "low"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Discovery",
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"Rule Type: Higher-Order Rule",
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"Rule Type: BBR"
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]
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timestamp_override = "event.ingested"
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type = "new_terms"
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query = '''
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host.os.type:windows and event.kind:signal and kibana.alert.rule.rule_id:(
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"d68e95ad-1c82-4074-a12a-125fe10ac8ba" or "7b8bfc26-81d2-435e-965c-d722ee397ef1" or
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"0635c542-1b96-4335-9b47-126582d2c19a" or "6ea55c81-e2ba-42f2-a134-bccf857ba922" or
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"e0881d20-54ac-457f-8733-fe0bc5d44c55" or "06568a02-af29-4f20-929c-f3af281e41aa" or
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"c4e9ed3e-55a2-4309-a012-bc3c78dad10a" or "51176ed2-2d90-49f2-9f3d-17196428b169" or
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"1d72d014-e2ab-4707-b056-9b96abe7b511"
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)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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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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[rule.new_terms]
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field = "new_terms_fields"
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value = ["host.id", "user.id"]
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[[rule.new_terms.history_window_start]]
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field = "history_window_start"
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value = "now-7d"
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