Samirbous
f9ba8a8f71
* [Tuning] Top Noisy Windows BBRS - Process Discovery Using Built-in Tools - System Service Discovery through built-in Windows Utilities * Update discovery_generic_process_discovery.toml * Update discovery_generic_process_discovery.toml * Update discovery_generic_process_discovery.toml * Update discovery_generic_process_discovery.toml --------- Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
72 lines
2.4 KiB
TOML
72 lines
2.4 KiB
TOML
[metadata]
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bypass_bbr_timing = true
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creation_date = "2023/07/13"
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integration = ["endpoint", "windows", "system"]
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maturity = "production"
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updated_date = "2025/12/17"
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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 identifies the execution of commands that can be used to enumerate running processes. Adversaries may
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enumerate processes to identify installed applications and security solutions.
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"""
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from = "now-9m"
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index = [
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"logs-endpoint.events.process-*",
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"logs-system.security*",
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"logs-windows.*",
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"winlogbeat-*",
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]
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language = "eql"
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license = "Elastic License v2"
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name = "Process Discovery Using Built-in Tools"
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risk_score = 21
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rule_id = "4982ac3e-d0ee-4818-b95d-d9522d689259"
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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: BBR",
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"Data Source: Elastic Defend",
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"Data Source: Windows Security Event Logs",
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]
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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 host.os.type == "windows" and event.type == "start" and process.args != null and
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not user.id in ("S-1-5-18", "S-1-5-19", "S-1-5-20") and process.parent.executable != null and
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(
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process.name :("PsList.exe", "qprocess.exe") or
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(process.name : "powershell.exe" and process.args : ("*get-process*", "*Win32_Process*") and not process.parent.name in ("openaev-agent.exe", "cmd.exe", "Miro.exe", "Granola.exe", "Wispr Flow.exe")) or
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(process.name : "wmic.exe" and process.args : ("process", "*Win32_Process*") and not process.parent.name in ("Code.exe", "node.exe", "javaw.exe", "java.exe", "asus_framework.exe", "Evernote.exe", "RingCentral.exe", "Avaya Cloud.exe", "Arduino IDE.exe")) or
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(process.name : "tasklist.exe" and process.args_count == 1 and process.parent.args != "tasklist | findstr consent.exe") or
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(process.name : "query.exe" and process.args : ("process", "imagename*", "csv", "/fi"))
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) and
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not process.working_directory like ("?:\\Program Files*", "D:\\*", "E:\\*") and
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not process.parent.executable like ("?:\\Program Files (x86)\\*.exe", "?:\\Program Files\\*.exe")
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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 = "T1057"
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name = "Process Discovery"
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reference = "https://attack.mitre.org/techniques/T1057/"
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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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