Justin Ibarra
45 lines
1.3 KiB
TOML
45 lines
1.3 KiB
TOML
[metadata]
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creation_date = "2020/09/02"
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ecs_version = ["1.6.0"]
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maturity = "production"
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updated_date = "2020/09/02"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies InstallUtil.exe making outbound network connections. This may indicate adversarial activity as InstallUtil is
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often leveraged by adversaries to execute code and evade detection.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "winlogbeat-*"]
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language = "eql"
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license = "Elastic License"
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name = "InstallUtil Process Making Network Connections"
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risk_score = 21
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rule_id = "a13167f1-eec2-4015-9631-1fee60406dcf"
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severity = "medium"
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tags = ["Elastic", "Windows"]
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type = "eql"
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query = '''
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/* this can be done without a sequence however, this does include more info on the process */
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sequence by process.entity_id
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[process where event.type in ("start", "process_started") and process.name == "installutil.exe"]
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[network where event.type == "connection" and process.name == "installutil.exe" and network.direction == "outgoing"]
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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 = "T1118"
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name = "InstallUtil"
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reference = "https://attack.mitre.org/techniques/T1118/"
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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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