Justin Ibarra
53 lines
2.0 KiB
TOML
53 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/02/18"
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ecs_version = ["1.5.0"]
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maturity = "production"
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updated_date = "2020/08/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies suspicious child processes of frequently targeted Microsoft Office applications (Word, PowerPoint, Excel).
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These child processes are often launched during exploitation of Office applications or from documents with malicious
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macros.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*"]
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language = "kuery"
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license = "Elastic License"
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name = "Suspicious MS Office Child Process"
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risk_score = 21
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rule_id = "a624863f-a70d-417f-a7d2-7a404638d47f"
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severity = "low"
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tags = ["Elastic", "Windows"]
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type = "query"
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query = '''
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event.category:process and event.type:(start or process_started) and
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process.parent.name:(eqnedt32.exe or excel.exe or fltldr.exe or msaccess.exe or
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mspub.exe or powerpnt.exe or winword.exe) and
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process.name:(Microsoft.Workflow.Compiler.exe or arp.exe or atbroker.exe or bginfo.exe or bitsadmin.exe or cdb.exe or
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certutil.exe or cmd.exe or cmstp.exe or cscript.exe or csi.exe or dnx.exe or dsget.exe or dsquery.exe or
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forfiles.exe or fsi.exe or ftp.exe or gpresult.exe or hostname.exe or ieexec.exe or iexpress.exe or
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installutil.exe or ipconfig.exe or mshta.exe or msxsl.exe or nbtstat.exe or net.exe or net1.exe or
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netsh.exe or netstat.exe or nltest.exe or odbcconf.exe or ping.exe or powershell.exe or pwsh.exe or
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qprocess.exe or quser.exe or qwinsta.exe or rcsi.exe or reg.exe or regasm.exe or regsvcs.exe or
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regsvr32.exe or sc.exe or schtasks.exe or systeminfo.exe or tasklist.exe or tracert.exe or whoami.exe or
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wmic.exe or wscript.exe or xwizard.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 = "T1193"
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name = "Spearphishing Attachment"
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reference = "https://attack.mitre.org/techniques/T1193/"
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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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