Files
sigma-rules/rta/execution_iso_dll_sideload.py
T
2023-10-03 10:47:58 -04:00

38 lines
1.4 KiB
Python

# 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 pathlib import Path
from . import RtaMetadata, common
metadata = RtaMetadata(
uuid="ba802fb2-f183-420e-947b-da5ce0c74d123",
platforms=["windows"],
siem=[],
endpoint=[{"rule_id": "ba802fb2-f183-420e-947b-da5ce0c74dd3", "rule_name": "Potential DLL SideLoad via a Microsoft Signed Binary"}],
techniques=["T1574", "T1574.002"],
)
# iso contains WerFault.exe and a testing faultrep.dll to be sideloaded
ISO = common.get_path("bin", "werfault_iso.iso")
PROC = 'WER_RTA.exe'
# ps script to mount, execute a file and unmount ISO device
PS_SCRIPT = common.get_path("bin", "ExecFromISOFile.ps1")
@common.requires_os(*metadata.platforms)
def main():
if Path(ISO).is_file() and Path(PS_SCRIPT).is_file():
print(f'[+] - ISO File {ISO} will be mounted and executed via powershell')
# import ExecFromISO function that takes two args -ISOFIle pointing to ISO file path and -procname pointing to the filename to execute
command = f"powershell.exe -ExecutionPol Bypass -c import-module {PS_SCRIPT}; ExecFromISO -ISOFile {ISO} -procname {PROC};"
common.execute(command)
print(f'[+] - RTA Done!')
if __name__ == "__main__":
exit(main())