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exec_scripting_via_html_app.py
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exec_scripting_via_html_app.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
metadata = RtaMetadata(
uuid="05f1f2a3-430d-4d20-9c0c-767d3b950cbb",
platforms=["windows"],
endpoint=[
{
"rule_name": "Script Execution via Microsoft HTML Application",
"rule_id": "f0630213-c4c4-4898-9514-746395eb9962",
}
],
siem=[],
techniques=["T1218"],
)
@common.requires_os(metadata.platforms)
def main():
# Execute Command
# Had a hard time trying to escape the quotes that would be needed to execute a real command using
# RunHTMLApplication, this will just fire the rule and result in a Missing entry error
common.log("Running rundll32 RunHTMLApplication")
common.execute(
[
"cmd.exe",
"/c",
"rundll32.exe javascript:\\..\\mshtml.dll,RunHTMLApplication",
],
timeout=5,
kill=True,
)
if __name__ == "__main__":
exit(main())