shashank-elastic
e8c54169a4
* Prep for Release 9.1 * Update Patch Version * Update Patch version * Update Patch version
67 lines
1.7 KiB
TOML
67 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2023/08/24"
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integration = ["endpoint", "windows", "system"]
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maturity = "production"
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updated_date = "2025/03/20"
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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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InstallUtil is a command-line utility that allows for installation and uninstallation of resources by executing specific
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installer components specified in .NET binaries. Adversaries may use InstallUtil to proxy the execution of code through
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a trusted Windows utility.
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"""
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from = "now-119m"
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index = [
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"endgame-*",
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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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interval = "60m"
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language = "eql"
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license = "Elastic License v2"
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name = "InstallUtil Activity"
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risk_score = 21
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rule_id = "90babaa8-5216-4568-992d-d4a01a105d98"
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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: Defense Evasion",
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"Data Source: Elastic Defend",
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"Rule Type: BBR",
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"Data Source: Elastic Endgame",
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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
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process.name : "installutil.exe" and not user.id : "S-1-5-18"
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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 = "T1218"
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name = "System Binary Proxy Execution"
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reference = "https://attack.mitre.org/techniques/T1218/"
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[[rule.threat.technique.subtechnique]]
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id = "T1218.004"
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name = "InstallUtil"
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reference = "https://attack.mitre.org/techniques/T1218/004/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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