45 lines
1.4 KiB
Python
45 lines
1.4 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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# Name: WinRAR Startup Folder
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# RTA: winrar_startup_folder.py
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# ATT&CK: T1060
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# Description: Writes batch file into Windows Startup folder using process ancestry tied to exploit (CVE-2018-20250)
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import os
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from pathlib import Path
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="6d2d3c21-2d71-4395-8ab7-b1d0138d9225",
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platforms=["windows"],
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endpoint=[],
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siem=[],
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techniques=[]
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)
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@common.requires_os(*metadata.platforms)
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def main():
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common.log("WinRAR StartUp Folder Persistence")
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win_rar_path = Path("WinRAR.exe").resolve()
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ace_loader_path = Path("Ace32Loader.exe").resolve()
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batch_file_path = "\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\mssconf.bat"
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startup_path = os.environ["USERPROFILE"] + batch_file_path
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common.copy_file("C:\\Windows\\System32\\cmd.exe", win_rar_path)
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common.copy_file("C:\\Windows\\System32\\cmd.exe", ace_loader_path)
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common.execute(
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[win_rar_path, "/c", ace_loader_path, "/c", "echo", "test", "^>", startup_path],
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kill=True,
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)
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common.remove_file(startup_path)
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common.remove_file(ace_loader_path)
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common.remove_file(win_rar_path)
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if __name__ == "__main__":
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exit(main())
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