Justin Ibarra
46d5e37b76
* min_stack all rules to 8.3 * bump date Co-authored-by: Mika Ayenson <mika.ayenson@elastic.co>
46 lines
1.3 KiB
TOML
46 lines
1.3 KiB
TOML
[metadata]
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creation_date = "2021/01/12"
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2022/08/24"
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[rule]
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author = ["Elastic"]
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description = "Identifies the execution of and EggShell Backdoor. EggShell is a known post exploitation tool for macOS and Linux."
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "EggShell Backdoor Execution"
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references = ["https://github.com/neoneggplant/EggShell"]
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risk_score = 73
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rule_id = "41824afb-d68c-4d0e-bfee-474dac1fa56e"
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severity = "high"
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tags = ["Elastic", "Host", "Linux", "macOS", "Threat Detection", "Execution"]
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timestamp_override = "event.ingested"
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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 process.name:espl and process.args:eyJkZWJ1ZyI6*
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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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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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id = "T1059"
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[[rule.threat.technique.subtechnique]]
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id = "T1059.006"
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name = "Python"
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reference = "https://attack.mitre.org/techniques/T1059/006/"
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[rule.threat.tactic]
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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id = "TA0002"
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