Justin Ibarra
70 lines
2.0 KiB
TOML
70 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/09/02"
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maturity = "production"
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updated_date = "2021/07/19"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies an executable created by a Microsoft Office application and subsequently executed. These processes are often
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launched via scripts inside documents or during exploitation of Microsoft Office applications.
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"""
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from = "now-120m"
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index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
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interval = "60m"
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language = "eql"
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license = "Elastic License v2"
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name = "Execution of File Written or Modified by Microsoft Office"
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risk_score = 21
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rule_id = "0d8ad79f-9025-45d8-80c1-4f0cd3c5e8e5"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
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type = "eql"
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query = '''
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sequence with maxspan=2h
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[file where event.type != "deletion" and file.extension : "exe" and
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(process.name : "WINWORD.EXE" or
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process.name : "EXCEL.EXE" or
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process.name : "OUTLOOK.EXE" or
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process.name : "POWERPNT.EXE" or
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process.name : "eqnedt32.exe" or
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process.name : "fltldr.exe" or
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process.name : "MSPUB.EXE" or
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process.name : "MSACCESS.EXE")
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] by host.id, file.path
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[process where event.type in ("start", "process_started")] by host.id, process.executable
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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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 = "T1566"
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name = "Phishing"
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reference = "https://attack.mitre.org/techniques/T1566/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.001"
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name = "Spearphishing Attachment"
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reference = "https://attack.mitre.org/techniques/T1566/001/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.002"
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name = "Spearphishing Link"
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reference = "https://attack.mitre.org/techniques/T1566/002/"
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[rule.threat.tactic]
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id = "TA0001"
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name = "Initial Access"
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reference = "https://attack.mitre.org/tactics/TA0001/"
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