Justin Ibarra
6bdfddac8e
* Expand timestamp_override tests * removed timestamp_override from eql sequence rules * add config entry for eql rules with beats index and t_o * add timestamp_override to missing fields
68 lines
2.3 KiB
TOML
68 lines
2.3 KiB
TOML
[metadata]
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creation_date = "2020/08/21"
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maturity = "production"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = "Identifies a suspicious parent child process relationship with cmd.exe descending from an unusual process."
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Unusual Parent Process for cmd.exe"
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note = """## Config
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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"""
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risk_score = 47
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rule_id = "3b47900d-e793-49e8-968f-c90dc3526aa1"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type in ("start", "process_started") and
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process.name : "cmd.exe" and
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process.parent.name : ("lsass.exe",
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"csrss.exe",
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"epad.exe",
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"regsvr32.exe",
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"dllhost.exe",
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"LogonUI.exe",
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"wermgr.exe",
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"spoolsv.exe",
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"jucheck.exe",
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"jusched.exe",
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"ctfmon.exe",
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"taskhostw.exe",
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"GoogleUpdate.exe",
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"sppsvc.exe",
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"sihost.exe",
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"slui.exe",
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"SIHClient.exe",
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"SearchIndexer.exe",
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"SearchProtocolHost.exe",
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"FlashPlayerUpdateService.exe",
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"WerFault.exe",
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"WUDFHost.exe",
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"unsecapp.exe",
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"wlanext.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 = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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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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