41 lines
1.2 KiB
Python
41 lines
1.2 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="1f0afcd1-e091-4489-a750-5b0b44e69e45",
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platforms=["windows"],
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endpoint=[],
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siem=[{
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'rule_id': '053a0387-f3b5-4ba5-8245-8002cca2bd08',
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'rule_name': 'Potential DLL Side-Loading via Microsoft Antimalware Service Executable'
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}],
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techniques=['T1574', 'T1574.002'],
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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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@common.requires_os(*metadata.platforms)
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def main():
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msmpeng = "C:\\Users\\Public\\MsMpEng.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, msmpeng)
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common.log("Modifying the OriginalFileName attribute")
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common.execute([rcedit, msmpeng, "--set-version-string", "OriginalFilename", "MsMpEng.exe"])
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common.execute([msmpeng], timeout=2, kill=True)
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common.remove_files(rcedit, msmpeng)
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if __name__ == "__main__":
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exit(main())
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