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>
52 lines
1.6 KiB
TOML
52 lines
1.6 KiB
TOML
[metadata]
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creation_date = "2021/04/12"
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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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Identifies the execution of the EarthWorm tunneler. Adversaries may tunnel network communications to and from a victim
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system within a separate protocol to avoid detection and network filtering, or to enable access to otherwise unreachable
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systems.
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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 = "Potential Protocol Tunneling via EarthWorm"
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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 = [
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"http://rootkiter.com/EarthWorm/",
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"https://decoded.avast.io/luigicamastra/apt-group-targeting-governmental-agencies-in-east-asia/",
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]
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risk_score = 47
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rule_id = "9f1c4ca3-44b5-481d-ba42-32dc215a2769"
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severity = "medium"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "Command and Control"]
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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 == "start" and
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process.args : "-s" and process.args : "-d" and process.args : "rssocks"
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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 = "T1572"
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name = "Protocol Tunneling"
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reference = "https://attack.mitre.org/techniques/T1572/"
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[rule.threat.tactic]
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id = "TA0011"
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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