Ruben Groenewoud
4cdf52129a
* [Tuning] Win DR Tuning for UEBA * Need to get used to Windows formatting * Added additional content * Updated min stack * Added additional tuning * Fixed unit testing for KQL optimization * Update rules_building_block/discovery_internet_capabilities.toml * Additional tuning * Kuery optimization * Additional tuning * Additional tuning * Additional tuning * Additional tuning * Unit testing optimization fix * optimization * tuning * Optimization * Update rules/windows/discovery_privileged_localgroup_membership.toml * Added feedback * Update rules/windows/discovery_privileged_localgroup_membership.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update rules/windows/discovery_remote_system_discovery_commands_windows.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update rules/windows/discovery_system_service_discovery.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * added host.id as additional new_terms field * Reworked a lot. * kibana.alert.rule.rule_id to non-ecs-schema.json * Fixed index by adding a dot * fixed typo * Added host.os.type:windows for signals * Added additional tag * Added Higher-Order Rule tag * Stripped down signal rules down to two * revert * Update rules/windows/discovery_admin_recon.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update rules/windows/discovery_enumerating_domain_trusts_via_nltest.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update rules_building_block/discovery_generic_registry_query.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update rules_building_block/discovery_system_time_discovery.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update rules/windows/discovery_privileged_localgroup_membership.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update discovery_generic_registry_query.toml * Readded exclusions * Added trailing wildcards for KQL * Update discovery_privileged_localgroup_membership.toml * Update rules_building_block/discovery_signal_unusual_user_host.toml Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com> * Update rules/windows/discovery_signal_unusual_discovery_signal_proc_cmdline.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Formatting fix --------- Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
67 lines
2.0 KiB
TOML
67 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2023/07/12"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "Multiple field support in the New Terms rule type was added in Elastic 8.6"
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min_stack_version = "8.6.0"
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updated_date = "2023/09/20"
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bypass_bbr_timing = true
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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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Identifies the use of built-in tools attackers can use to check for Internet connectivity on compromised systems. These
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results may be used to determine communication capabilities with C2 servers, or to identify routes, redirectors, and
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proxy servers.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Discovery of Internet Capabilities via Built-in Tools"
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risk_score = 21
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rule_id = "7f89afef-9fc5-4e7b-bf16-75ffdf27f8db"
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severity = "low"
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tags = ["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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]
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timestamp_override = "event.ingested"
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type = "new_terms"
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query = '''
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host.os.type:windows and event.category:process and event.type:start and
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process.name.caseless:("ping.exe" or "tracert.exe" or "pathping.exe") and
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not process.args:("127.0.0.1" or "0.0.0.0" or "localhost" or "1.1.1.1" or "1.2.3.4" or "::1")
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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 = "T1016"
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name = "System Network Configuration Discovery"
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reference = "https://attack.mitre.org/techniques/T1016/"
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[[rule.threat.technique.subtechnique]]
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id = "T1016.001"
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name = "Internet Connection Discovery"
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reference = "https://attack.mitre.org/techniques/T1016/001/"
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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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[rule.new_terms]
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field = "new_terms_fields"
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value = ["host.id", "user.id", "process.command_line"]
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[[rule.new_terms.history_window_start]]
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field = "history_window_start"
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value = "now-14d"
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