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file_html_smuggling.py
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file_html_smuggling.py
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# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0; you may not use this file except in compliance with the Elastic License
# 2.0.
from . import common
from . import RtaMetadata
import os
metadata = RtaMetadata(
uuid="0debe15f-1c9b-4ff8-9e4c-478647ca45e2",
platforms=["windows"],
endpoint=[
{"rule_name": "Suspicious File Delivery via HTML Smuggling", "rule_id": "4415ab60-7cff-41dc-b3f0-939bd22c1810"}
],
siem=[],
techniques=["T1027", "T1566"],
)
EXE_FILE = common.get_path("bin", "renamed_posh.exe")
@common.requires_os(metadata.platforms)
def main():
userprofile = os.getenv("USERPROFILE")
partial = f"{userprofile}\\Downloads\\a.partial"
file = f"{userprofile}\\Downloads\\a.iso"
explorer = "C:\\Users\\Public\\explorer.exe"
chrome = "C:\\Users\\Public\\chrome.exe"
common.copy_file(EXE_FILE, explorer)
common.copy_file(EXE_FILE, chrome)
# Execute command
common.execute(
[
explorer,
"/c",
chrome,
"--single-argument",
f"{userprofile}\\Downloads\\a.html",
],
timeout=10,
kill=True,
)
common.execute([chrome, "/c", f"New-Item -Path {partial} -Type File"], timeout=10)
common.execute([chrome, "/c", f"Rename-Item {partial} {file}"], timeout=10)
common.remove_files(explorer, chrome, file)
if __name__ == "__main__":
exit(main())