mirror of
https://github.com/elastic/protections-artifacts
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protectionsmachine
62 lines
2.0 KiB
TOML
62 lines
2.0 KiB
TOML
[rule]
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description = """
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This rule monitors for suspicious Lua command executions by detecting the start of a Lua process with a command line
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argument that contains keywords commonly used by attackers to execute malicious code. These command line arguments
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include operations to execute code, create subprocesses, and encode or decode data.
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"""
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id = "5383342f-7ddd-46c6-90dc-349499df90f1"
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license = "Elastic License v2"
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name = "Suspicious Lua Command Execution"
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os_list = ["linux"]
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version = "1.0.5"
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query = '''
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process where event.type == "start" and event.action == "exec" and
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process.executable like ("/bin/lua*", "/usr/bin/lua*", "/usr/local/bin/lua*") and
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process.args == "-e" and process.command_line like~ (
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"*os.execute(*", "*io.popen(*", "*load(*", "*loadstring(*", "*dofile(*",
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"*package.loadlib(*", "*base64.decode(*", "*base64.encode(*", "*zlib.inflate(*",
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"*zlib.deflate(*", "*zlib.decompress(*", "*zlib.compress(*", "*socket.bind(*",
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"*socket.connect(*", "*socket.receive(*", "*socket.send(*", "*socket.tcp(*",
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"*socket.udp(*", "*socket.listen(*", "*socket.accept(*", "*net.http.request(*",
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"*net.http.get(*", "*net.http.post(*", "*http.request(*", "*http.get(*", "*http.post(*"
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) and not (
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process.parent.name in ("make", "configure") or
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process.command_line in ("lua -e require('cjson')", "lua -e require('socket')") or
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process.command_line like "*no_such_lib*"
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)
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'''
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min_endpoint_version = "7.15.0"
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optional_actions = []
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[[actions]]
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action = "kill_process"
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field = "process.entity_id"
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state = 0
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[[actions]]
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action = "kill_process"
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field = "process.parent.entity_id"
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state = 0
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[[threat]]
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framework = "MITRE ATT&CK"
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[[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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[[threat.technique.subtechnique]]
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id = "T1059.011"
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name = "Lua"
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reference = "https://attack.mitre.org/techniques/T1059/011/"
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[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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[internal]
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min_endpoint_version = "7.15.0"
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