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Merge branch 'main' into react_sync_rta_4187
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‎detection_rules/schemas/definitions.py‎

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@@ -247,3 +247,11 @@ def validator(value):
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'geo_point', 'geo_shape', 'point', 'shape',
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'percolator'
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]
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# definitions for the integration to index mapping unit test case
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IGNORE_IDS = ["eb079c62-4481-4d6e-9643-3ca499df7aaa", "699e9fdb-b77c-4c01-995c-1c15019b9c43",
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"0c9a14d9-d65d-486f-9b5b-91e4e6b22bd0", "a198fbbd-9413-45ec-a269-47ae4ccf59ce",
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"0c41e478-5263-4c69-8f9e-7dfd2c22da64", "aab184d3-72b3-4639-b242-6597c99d8bca",
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"a61809f3-fb5b-465c-8bff-23a8a068ac60", "f3e22c8b-ea47-45d1-b502-b57b6de950b3"]
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IGNORE_INDICES = ['.alerts-security.*', 'logs-*', 'metrics-*', 'traces-*', 'endgame-*',
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'filebeat-*', 'packetbeat-*', 'auditbeat-*', 'winlogbeat-*']

‎rta/linux_defense_evasion_process_masquerading_via_exec.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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import sys
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="4e6ded7e-23cb-460c-8a5b-21c5e5e8d6e8",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Potential Process Masquerading via Exec",
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"rule_id": "e6669bc3-cb75-4fb3-91e0-ddaa06dd59b2",
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},
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],
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techniques=["T1564", "T1059"],
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)
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@common.requires_os(*metadata.platforms)
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def main() -> None:
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common.log("Creating a fake executable..")
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masquerade = "[foo]"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade2, masquerade]
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_crash.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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import sys
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="fa40fdc4-23bf-491c-bc55-6a6848c5b6da",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Potential Proxy Execution via Crash",
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"rule_id": "995c8bdb-5ebb-4c5b-9a03-4d39b52c0ff3",
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},
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],
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techniques=["T1218", "T1059"],
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)
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@common.requires_os(*metadata.platforms)
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def main() -> None:
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common.log("Creating a fake executable..")
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masquerade = "/tmp/crash"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade, '-h', masquerade, '-c', 'whoami']
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_ld_so.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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import sys
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="e2a136e5-bda1-41c4-8143-514c0b0784c4",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "System Binary Proxy Execution via ld.so",
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"rule_id": "10cb6563-35a9-45b7-a394-e7bca6fd5bed",
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},
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],
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techniques=["T1218", "T1059"],
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)
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@common.requires_os(*metadata.platforms)
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def main() -> None:
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common.log("Creating a fake executable..")
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masquerade = "/lib/ld-linux-foo.so"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade, masquerade, '-c', 'whoami']
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_pidstat.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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import sys
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="4f705092-fae2-4455-94ab-e42fb13496e7",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Potential Proxy Execution via Pidstat",
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"rule_id": "436e12a8-7a03-4f6f-a3b2-3fe8b8f4c474",
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},
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],
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techniques=["T1218", "T1059"],
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)
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@common.requires_os(*metadata.platforms)
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def main() -> None:
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common.log("Creating a fake executable..")
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masquerade = "/tmp/pidstat"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade, '-e', masquerade, '-c', 'whoami']
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_sed.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
5+
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import sys
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from . import RtaMetadata, common
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9+
metadata = RtaMetadata(
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uuid="49b9a7c8-5974-4ed3-bba0-12ab02d9b8bc",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Potential Proxy Execution via Sed",
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"rule_id": "272cf3e7-fd3f-442b-a781-f9e864fb1d4c",
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},
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],
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techniques=["T1218", "T1059"],
19+
)
20+
21+
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@common.requires_os(*metadata.platforms)
23+
def main() -> None:
24+
common.log("Creating a fake executable..")
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masquerade = "/tmp/sed"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade, '-n', masquerade, '-c', 'whoami']
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_split.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
4+
# 2.0.
5+
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import sys
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from . import RtaMetadata, common
8+
9+
metadata = RtaMetadata(
10+
uuid="529c5cfd-4ceb-43a1-a006-40e072e4906c",
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platforms=["linux"],
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endpoint=[
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{
14+
"rule_name": "Potential Proxy Execution via Split",
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"rule_id": "0c63849b-2e23-4720-9608-0a402d093d3c",
16+
},
17+
],
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techniques=["T1218", "T1059"],
19+
)
20+
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@common.requires_os(*metadata.platforms)
23+
def main() -> None:
24+
common.log("Creating a fake executable..")
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masquerade = "/tmp/split"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade)
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common.log("Granting execute permissions...")
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common.execute(["chmod", "+x", masquerade])
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source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
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common.log("Granting execute permissions...")
36+
common.execute(["chmod", "+x", masquerade2])
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commands = [masquerade, masquerade, '--filter=foo', '-c', 'whoami']
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common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
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common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
47+
sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_sysctl.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
3+
# 2.0; you may not use this file except in compliance with the Elastic License
4+
# 2.0.
5+
6+
import sys
7+
from . import RtaMetadata, common
8+
9+
metadata = RtaMetadata(
10+
uuid="aed2d3be-94d1-4e19-80dd-6412b336e827",
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platforms=["linux"],
12+
endpoint=[
13+
{
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"rule_name": "Potential Proxy Execution via Sysctl",
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"rule_id": "268ffea4-fc13-4ab5-a473-07d10255ea8d",
16+
},
17+
],
18+
techniques=["T1218", "T1059"],
19+
)
20+
21+
22+
@common.requires_os(*metadata.platforms)
23+
def main() -> None:
24+
common.log("Creating a fake executable..")
25+
masquerade = "/tmp/sysctl"
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masquerade2 = "/tmp/sh"
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source = common.get_path("bin", "linux.ditto_and_spawn")
29+
common.copy_file(source, masquerade)
30+
common.log("Granting execute permissions...")
31+
common.execute(["chmod", "+x", masquerade])
32+
33+
source = common.get_path("bin", "linux.ditto_and_spawn")
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common.copy_file(source, masquerade2)
35+
common.log("Granting execute permissions...")
36+
common.execute(["chmod", "+x", masquerade2])
37+
38+
commands = [masquerade, masquerade, 'kernel.core_pattern=/bin/sh -c']
39+
common.execute([*commands], timeout=5, kill=True)
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common.log("Cleaning...")
41+
common.remove_file(masquerade)
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common.remove_file(masquerade2)
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common.log("Simulation successfull!")
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if __name__ == "__main__":
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sys.exit(main())

‎rta/linux_defense_evasion_proxy_execution_via_tcpdump.py‎

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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
2+
# or more contributor license agreements. Licensed under the Elastic License
3+
# 2.0; you may not use this file except in compliance with the Elastic License
4+
# 2.0.
5+
6+
import sys
7+
from . import RtaMetadata, common
8+
9+
metadata = RtaMetadata(
10+
uuid="04c7ac98-3d40-4472-b9bf-996d2a31d227",
11+
platforms=["linux"],
12+
endpoint=[
13+
{
14+
"rule_name": "Potential Proxy Execution via Tcpdump",
15+
"rule_id": "b1d81dfe-93d7-4d7d-827d-5def574e8cda",
16+
},
17+
],
18+
techniques=["T1218", "T1059"],
19+
)
20+
21+
22+
@common.requires_os(*metadata.platforms)
23+
def main() -> None:
24+
common.log("Creating a fake executable..")
25+
masquerade = "/tmp/tcpdump"
26+
27+
source = common.get_path("bin", "linux.ditto_and_spawn")
28+
common.copy_file(source, masquerade)
29+
common.log("Granting execute permissions...")
30+
common.execute(["chmod", "+x", masquerade])
31+
32+
commands = [masquerade, '-W', '-w', '-z']
33+
common.execute([*commands], timeout=5, kill=True)
34+
common.log("Cleaning...")
35+
common.remove_file(masquerade)
36+
common.log("Simulation successfull!")
37+
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39+
if __name__ == "__main__":
40+
sys.exit(main())

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