Jonhnathan
ddb1f75352
* [New Rule] New BBR Rules - Part 2 * Update discovery_generic_account_groups.toml * Update discovery_generic_account_groups.toml * Update rules_building_block/defense_evasion_cmd_copy_binary_contents.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules_building_block/execution_downloaded_shortcut_files.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules_building_block/defense_evasion_cmd_copy_binary_contents.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update rules_building_block/defense_evasion_unusual_process_extension.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update defense_evasion_unusual_process_extension.toml --------- Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
66 lines
1.9 KiB
TOML
66 lines
1.9 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 = "2023/08/23"
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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-119m"
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interval = "60m"
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index = ["logs-endpoint.events.*"]
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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", "Rule Type: BBR"]
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timestamp_override = "event.ingested"
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type = "eql"
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building_block_type = "default"
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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"
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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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