Jonhnathan
c2d1586270
* [Rule Tuning] Windows BBR Promotion * Update non-ecs-schema.json * Update persistence_netsh_helper_dll.toml * Update persistence_werfault_reflectdebugger.toml * Update privilege_escalation_unquoted_service_path.toml * Update defense_evasion_msdt_suspicious_diagcab.toml * Update defense_evasion_suspicious_msiexec_execution.toml * Update discovery_security_software_wmic.toml * Revert "Update defense_evasion_msdt_suspicious_diagcab.toml" This reverts commit 0e1f3ea3e18a146c421a5bda784633cca4a2b0c0. * Revert "Update defense_evasion_suspicious_msiexec_execution.toml" This reverts commit 4e26a167774ad712d19334a4c2c712cc1d550e7f. * Revert "Update discovery_security_software_wmic.toml" This reverts commit d638cec354a46cacab1e62596f4ad939a1d9c32a. --------- Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
73 lines
2.1 KiB
TOML
73 lines
2.1 KiB
TOML
[metadata]
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creation_date = "2023/08/23"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2024/04/05"
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[rule]
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author = ["Elastic"]
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description = """
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Managed Object Format (MOF) files can be compiled locally or remotely through mofcomp.exe. Attackers may leverage MOF
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files to build their own namespaces and classes into the Windows Management Instrumentation (WMI) repository, or
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establish persistence using WMI Event Subscription.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.process-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Mofcomp Activity"
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risk_score = 21
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rule_id = "210d4430-b371-470e-b879-80b7182aa75e"
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severity = "low"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Defend"]
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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 : "mofcomp.exe" and process.args : "*.mof" and
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not user.id : "S-1-5-18" and
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not
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(
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process.parent.name : "ScenarioEngine.exe" and
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process.args : (
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"*\\MSSQL\\Binn\\*.mof",
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"*\\Microsoft SQL Server\\???\\Shared\\*.mof",
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"*\\OLAP\\bin\\*.mof"
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)
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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.technique]]
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id = "T1047"
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name = "Windows Management Instrumentation"
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reference = "https://attack.mitre.org/techniques/T1047/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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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 = "T1546"
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name = "Event Triggered Execution"
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reference = "https://attack.mitre.org/techniques/T1546/"
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[[rule.threat.technique.subtechnique]]
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id = "T1546.003"
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name = "Windows Management Instrumentation Event Subscription"
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reference = "https://attack.mitre.org/techniques/T1546/003/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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