Eric Forte
52 lines
1.4 KiB
Python
52 lines
1.4 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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from . import common
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from . import RtaMetadata
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metadata = RtaMetadata(
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uuid="4076de6c-6caa-40b3-bfb6-548645823376",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Init.d Script 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():
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# Path for the fake initd script
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fake_initd = "/etc/init.d/rta"
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# Create fake sh executable
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masquerade = "/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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# Create a fake initd script that launches sh
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with open(fake_initd, 'w') as script:
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script.write('#!/bin/bash\n')
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script.write('/tmp/sh\n')
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# Make the script executable
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common.execute(['chmod', '+x', fake_initd])
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common.execute(['chmod', '+x', masquerade])
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# Execute the fake initd script
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common.log("Launching a shell that executes a payload as a child of fake initd")
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common.execute([fake_initd], timeout=5, kill=True, shell=True)
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# Cleanup
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common.remove_file(fake_initd)
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if __name__ == "__main__":
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exit(main())
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