Mika Ayenson
44 lines
1.3 KiB
Python
44 lines
1.3 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="498c13e2-789c-4a6c-b32d-0589d2f907c2",
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platforms=["windows"],
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endpoint=[
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{
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"rule_name": "Signed Binary Execution via Microsoft Office",
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"rule_id": "321e7877-075a-4582-8eff-777dde15e787",
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},
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{"rule_name": "Execution via Renamed Signed Binary Proxy", "rule_id": "b0207677-5041-470b-981d-13ab956cf5b4"},
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],
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siem=[],
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techniques=["T1574", "T1218", "T1566"],
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)
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@common.requires_os(metadata.platforms)
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def main():
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powershell = "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe"
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temposh = "C:\\Users\\Public\\posh.exe"
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binary = "C:\\Users\\Public\\winword.exe"
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common.copy_file(powershell, binary)
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# Execute command
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common.log("Dropping executable using fake winword")
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common.execute([binary, "/c", f"Copy-Item {powershell} {temposh}"], timeout=10)
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common.log("Executing it using fake winword")
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common.execute([binary, "/c", temposh], kill=True)
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common.remove_files(binary, temposh)
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if __name__ == "__main__":
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exit(main())
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