shashank-elastic
85 lines
2.4 KiB
TOML
85 lines
2.4 KiB
TOML
[metadata]
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creation_date = "2020/11/03"
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integration = ["endpoint", "windows"]
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maturity = "production"
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updated_date = "2024/05/21"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the use of Distributed Component Object Model (DCOM) to execute commands from a remote host, which are
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launched via the HTA Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move
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laterally while attempting to evade detection.
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"""
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from = "now-9m"
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index = [
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"winlogbeat-*",
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"logs-endpoint.events.process-*",
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"logs-endpoint.events.network-*",
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"logs-windows.sysmon_operational-*",
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]
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language = "eql"
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license = "Elastic License v2"
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name = "Incoming DCOM Lateral Movement via MSHTA"
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references = ["https://codewhitesec.blogspot.com/2018/07/lethalhta.html"]
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risk_score = 73
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rule_id = "622ecb68-fa81-4601-90b5-f8cd661e4520"
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severity = "high"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Lateral Movement",
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"Data Source: Elastic Defend",
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"Data Source: Sysmon",
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]
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type = "eql"
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query = '''
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sequence with maxspan=1m
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[process where host.os.type == "windows" and event.type == "start" and
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process.name : "mshta.exe" and process.args : "-Embedding"
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] by host.id, process.entity_id
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[network where host.os.type == "windows" and event.type == "start" and process.name : "mshta.exe" and
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network.direction : ("incoming", "ingress") and network.transport == "tcp" and
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source.port > 49151 and destination.port > 49151 and source.ip != "127.0.0.1" and source.ip != "::1"
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] by host.id, process.entity_id
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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 = "T1021.003"
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name = "Distributed Component Object Model"
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reference = "https://attack.mitre.org/techniques/T1021/003/"
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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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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1218"
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name = "System Binary Proxy Execution"
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reference = "https://attack.mitre.org/techniques/T1218/"
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[[rule.threat.technique.subtechnique]]
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id = "T1218.005"
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name = "Mshta"
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reference = "https://attack.mitre.org/techniques/T1218/005/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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