48 lines
1.5 KiB
Python
48 lines
1.5 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="a0b7435a-1f48-4fae-b3dc-c596dc70490d",
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platforms=["windows"],
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endpoint=[
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{
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"rule_name": "Execution of File Written or Modified by Microsoft Equation Editor",
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"rule_id": "8bc4f22c-9bb1-4c76-a7b6-195bee3579db",
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},
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{"rule_name": "Microsoft Equation Editor Child Process", "rule_id": "60eb5960-b26e-494a-8cf2-35ab5939f6c1"},
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],
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siem=[],
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techniques=["T1203", "T1566"],
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)
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EXE_FILE = common.get_path("bin", "renamed_posh.exe")
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@common.requires_os(*metadata.platforms)
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def main():
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server, ip, port = common.serve_web()
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url = f"http://{ip}:{port}/bin/renamed_posh.exe"
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eqnedt32 = "C:\\Users\\Public\\eqnedt32.exe"
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dropped = "C:\\Users\\Public\\posh.exe"
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common.copy_file(EXE_FILE, eqnedt32)
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cmd = f"Invoke-WebRequest -Uri {url} -OutFile {dropped}"
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# Execute command
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common.log("Using a fake eqnedt32 to drop and execute an .exe")
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common.execute([eqnedt32, "/c", cmd], timeout=10)
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common.execute([eqnedt32, "/c", dropped], timeout=10, kill=True)
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common.remove_file(eqnedt32)
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common.remove_file(dropped)
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if __name__ == "__main__":
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exit(main())
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