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>
57 lines
2.0 KiB
TOML
57 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/11/18"
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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 = """
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Attackers may maintain persistence by creating registry keys using AppInit DLLs. AppInit DLLs are loaded by every
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process using the common library, user32.dll.
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"""
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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 = "Registry Persistence via AppInit DLL"
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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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risk_score = 47
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rule_id = "d0e159cf-73e9-40d1-a9ed-077e3158a855"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "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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registry where
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registry.path : ("HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\AppInit_Dlls",
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"HKLM\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows NT\\CurrentVersion\\Windows\\AppInit_Dlls") and
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not process.executable : ("C:\\Windows\\System32\\msiexec.exe",
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"C:\\Windows\\SysWOW64\\msiexec.exe",
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"C:\\Program Files\\Commvault\\ContentStore*\\Base\\cvd.exe",
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"C:\\Program Files (x86)\\Commvault\\ContentStore*\\Base\\cvd.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 = "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 = "T1546.010"
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name = "AppInit DLLs"
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reference = "https://attack.mitre.org/techniques/T1546/010/"
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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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