protections machine
53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
# 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 pathlib import Path
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="0560d795-bdd6-4a91-97ad-8e2c2d8143ef",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "System V Init (init.d) Executed Binary from Unusual Location",
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"rule_id": "879c083c-e2d9-4f75-84f2-0f1471d915a8",
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},
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],
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techniques=["T1037"],
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)
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@common.requires_os(*metadata.platforms)
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def main() -> None:
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# Path for the fake initd script
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initd_script = "/etc/init.d/rta"
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# Create fake executable
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masquerade = "/dev/shm/evil"
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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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# Create a fake script that executes the fake binary
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with Path(masquerade).open("w", encoding="utf-8") as script:
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script.write("#!/bin/bash\n")
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script.write("/dev/shm/evil\n")
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# Make the script executable
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common.execute(["chmod", "+x", initd_script])
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# Execute the fake script
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common.log("Launching fake initd script")
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common.execute([initd_script], timeout=5, kill=True, shell=True) # noqa: S604
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# Cleanup
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common.remove_file(initd_script)
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common.remove_file(masquerade)
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if __name__ == "__main__":
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sys.exit(main())
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