Jonhnathan
c5addae009
* [Rule Tuning] Windows BBR Rule Tuning - 3 * Update non-ecs-schema.json * Update rules_building_block/execution_settingcontent_ms_file_creation.toml Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com> * Update persistence_startup_folder_lnk.toml --------- Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
66 lines
2.3 KiB
TOML
66 lines
2.3 KiB
TOML
[metadata]
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creation_date = "2023/08/29"
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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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Adversaries may attempt to connect to a remote system over Windows Remote Desktop Protocol (RDP) to achieve lateral
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movement. Adversaries may avoid using the Microsoft Terminal Services Client (mstsc.exe) binary to establish
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an RDP connection to evade detection.
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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.network-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Outgoing RDP Connection by Unusual Process"
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risk_score = 21
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rule_id = "8e39f54e-910b-4adb-a87e-494fbba5fb65"
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severity = "low"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Lateral Movement", "Data Source: Elastic Defend"]
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timestamp_override = "event.ingested"
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building_block_type = "default"
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type = "eql"
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query = '''
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network where host.os.type == "windows" and
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event.action == "connection_attempted" and destination.port == 3389 and
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destination.ip != "::1" and destination.ip != "127.0.0.1" and
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not (
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process.executable : (
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"?:\\Windows\\System32\\mstsc.exe",
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"?:\\Program Files (x86)\\mRemoteNG\\mRemoteNG.exe",
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"?:\\Program Files (x86)\\PRTG Network Monitor\\PRTG Probe.exe",
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"?:\\Program Files\\Azure Advanced Threat Protection Sensor\\*\\Microsoft.Tri.Sensor.exe",
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"?:\\Program Files (x86)\\Microsoft\\Remote Desktop Connection Manager\\RDCMan.exe",
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"?:\\Program Files\\SentinelOne\\Sentinel Agent*\\Ranger\\SentinelRanger.exe",
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"?:\\Program Files\\Devolutions\\Remote Desktop Manager\\RemoteDesktopManager.exe",
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"?:\\Program Files (x86)\\Devolutions\\Remote Desktop Manager\\RemoteDesktopManager.exe"
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) and process.code_signature.trusted == true
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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 = "T1021"
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name = "Remote Services"
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reference = "https://attack.mitre.org/techniques/T1021/"
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[[rule.threat.technique.subtechnique]]
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id = "T1021.001"
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name = "Remote Desktop Protocol"
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reference = "https://attack.mitre.org/techniques/T1021/001/"
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[rule.threat.tactic]
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id = "TA0008"
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name = "Lateral Movement"
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reference = "https://attack.mitre.org/tactics/TA0008/"
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