52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
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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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from . import common
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from . import RtaMetadata
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metadata = RtaMetadata(
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uuid="5b277316-4584-4e4f-8a71-6c7d833e2c30",
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platforms=["linux"],
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endpoint=[
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{
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"rule_name": "Scheduled Job Executing Binary in Unusual Location",
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"rule_id": "f2a52d42-2410-468b-9910-26823c6ef822"
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}
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],
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techniques=["T1543", "T1053"],
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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 systemd script
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fake_systemd = "/tmp/systemd"
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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 systemd script that launches sh
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with open(fake_systemd, '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_systemd])
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common.execute(['chmod', '+x', masquerade])
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# Execute the fake systemd script
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common.log("Launching a shell that executes a payload as a child of fake systemd")
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common.execute([fake_systemd], timeout=5, kill=True, shell=True)
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# Cleanup
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common.remove_file(fake_systemd)
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if __name__ == "__main__":
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exit(main())
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