Ross Wolf
31f63e728e
* Switch from process.ppid to process.parent.pid * Bump updated date * Bump updated date
47 lines
1.4 KiB
TOML
47 lines
1.4 KiB
TOML
[metadata]
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creation_date = "2020/12/07"
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maturity = "production"
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updated_date = "2021/06/22"
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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 shell process (sh) via scripting (JXA or AppleScript). Adversaries may use the
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doShellScript functionality in JXA or do shell script in AppleScript to execute system commands.
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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 = "Shell Execution via Apple Scripting"
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references = [
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"https://developer.apple.com/library/archive/technotes/tn2065/_index.html",
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"https://objectivebythesea.com/v2/talks/OBTS_v2_Thomas.pdf",
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]
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risk_score = 47
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rule_id = "d461fac0-43e8-49e2-85ea-3a58fe120b4f"
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severity = "medium"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Execution"]
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type = "eql"
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query = '''
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sequence by host.id with maxspan=5s
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[process where event.type in ("start", "process_started", "info") and process.name == "osascript"] by process.pid
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[process where event.type in ("start", "process_started") and process.name == "sh" and process.args == "-c"] by process.parent.pid
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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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