Justin Ibarra
57 lines
1.5 KiB
TOML
57 lines
1.5 KiB
TOML
[metadata]
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creation_date = "2020/11/19"
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maturity = "production"
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updated_date = "2021/03/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies suspicious Image Loading of the Remote Desktop Services ActiveX Client (mstscax), this may indicate the
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presence of RDP lateral movement capability.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Suspicious RDP ActiveX Client Loaded"
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references = ["https://posts.specterops.io/revisiting-remote-desktop-lateral-movement-8fb905cb46c3"]
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risk_score = 47
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rule_id = "71c5cb27-eca5-4151-bb47-64bc3f883270"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Lateral Movement"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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library where dll.name : "mstscax.dll" and
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/* depending on noise in your env add here extra paths */
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process.executable :
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(
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"C:\\Windows\\*",
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"C:\\Users\\Public\\*",
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"C:\\Users\\Default\\*",
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"C:\\Intel\\*",
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"C:\\PerfLogs\\*",
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"C:\\ProgramData\\*",
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"\\Device\\Mup\\*",
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"\\\\*"
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) and
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/* add here FPs */
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not process.executable : ("C:\\Windows\\System32\\mstsc.exe", "C:\\Windows\\SysWOW64\\mstsc.exe")
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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.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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