Mika Ayenson
a52751494e
* Convert config header to setup in note field * Parse note field into separate setup and note field with marko gfm * only validate and parse note on elastic authored rules and add CLI description for new DR_BYPASS_NOTE_VALIDATION_AND_PARSE environment variable Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
54 lines
1.8 KiB
TOML
54 lines
1.8 KiB
TOML
[metadata]
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creation_date = "2021/01/11"
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maturity = "production"
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updated_date = "2022/05/16"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the creation or modification of the Event Monitor Daemon (emond) rules. Adversaries may abuse this service by
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writing a rule to execute commands when a defined event occurs, such as system start up or user authentication.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Emond Rules Creation or Modification"
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note = """## Setup
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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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references = ["https://www.xorrior.com/emond-persistence/",
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"https://www.sentinelone.com/blog/how-malware-persists-on-macos/"]
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risk_score = 47
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rule_id = "a6bf4dd4-743e-4da8-8c03-3ebd753a6c90"
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severity = "medium"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Persistence"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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file where event.type != "deletion" and
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file.path : ("/private/etc/emond.d/rules/*.plist", "/etc/emon.d/rules/*.plist", "/private/var/db/emondClients/*")
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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 = "T1546"
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name = "Event Triggered Execution"
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reference = "https://attack.mitre.org/techniques/T1546/"
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[[rule.threat.technique.subtechnique]]
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id = "T1546.014"
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name = "Emond"
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reference = "https://attack.mitre.org/techniques/T1546/014/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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