2023-03-20 07:56:51 -03:00
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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="7c4e0d1e-e80a-465a-9612-a319800390f4",
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platforms=["windows"],
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endpoint=[],
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siem=[{
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'rule_id': 'e2f9fdf5-8076-45ad-9427-41e0e03dc9c2',
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'rule_name': 'Suspicious Process Execution via Renamed PsExec Executable'
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}],
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techniques=['T1569', 'T1569.002'],
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)
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EXE_FILE = common.get_path("bin", "renamed_posh.exe")
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RENAMER = common.get_path("bin", "rcedit-x64.exe")
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2023-10-03 10:47:58 -04:00
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@common.requires_os(*metadata.platforms)
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2023-03-20 07:56:51 -03:00
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def main():
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psexesvc = "C:\\Users\\Public\\rta.exe"
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rcedit = "C:\\Users\\Public\\rcedit.exe"
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common.copy_file(RENAMER, rcedit)
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common.copy_file(EXE_FILE, psexesvc)
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common.log("Modifying the OriginalFileName attribute")
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common.execute([rcedit, psexesvc, "--set-version-string", "OriginalFilename", "psexesvc.exe"])
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common.execute([psexesvc], timeout=2, kill=True)
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common.remove_files(rcedit, psexesvc)
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if __name__ == "__main__":
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exit(main())
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