shashank-elastic
77 lines
2.8 KiB
TOML
77 lines
2.8 KiB
TOML
[metadata]
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creation_date = "2021/04/12"
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integration = ["endpoint", "windows"]
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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 = "2023/10/23"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the modification of the Remote Desktop Protocol (RDP) Shadow registry or the execution of processes
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indicative of an active RDP shadowing session. An adversary may abuse the RDP Shadowing feature to spy on or control
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other users active RDP sessions.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*", "endgame-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Remote Desktop Shadowing Activity"
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references = [
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"https://bitsadm.in/blog/spying-on-users-using-rdp-shadowing",
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"https://swarm.ptsecurity.com/remote-desktop-services-shadowing/",
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]
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risk_score = 73
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rule_id = "c57f8579-e2a5-4804-847f-f2732edc5156"
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setup = """
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
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events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
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Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
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`event.ingested` to @timestamp.
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For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
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"""
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severity = "high"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Lateral Movement", "Data Source: Elastic Endgame", "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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/* Identifies the modification of RDP Shadow registry or
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the execution of processes indicative of active shadow RDP session */
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any where host.os.type == "windows" and
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(
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(event.category == "registry" and
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registry.path : (
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"HKLM\\Software\\Policies\\Microsoft\\Windows NT\\Terminal Services\\Shadow",
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"\\REGISTRY\\MACHINE\\Software\\Policies\\Microsoft\\Windows NT\\Terminal Services\\Shadow"
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)
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) or
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(event.category == "process" and event.type == "start" and
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(process.name : ("RdpSaUacHelper.exe", "RdpSaProxy.exe") and process.parent.name : "svchost.exe") or
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(process.pe.original_file_name : "mstsc.exe" and process.args : "/shadow:*")
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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 = "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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