eric-forte-elastic
42 lines
1.5 KiB
Python
42 lines
1.5 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 . import common
|
|
from . import RtaMetadata
|
|
|
|
|
|
metadata = RtaMetadata(
|
|
uuid="d2671cc5-87d0-4612-9e3c-0862b137d242",
|
|
platforms=["windows"],
|
|
endpoint=[{"rule_name": "WMI Image Load via Microsoft Office", "rule_id": "46952f58-6741-4280-8e74-fa43f63c9604"}],
|
|
siem=[{'rule_id': '891cb88e-441a-4c3e-be2d-120d99fe7b0d', 'rule_name': 'Suspicious WMI Image Load from MS Office'}],
|
|
techniques=["T1047", "T1566"],
|
|
)
|
|
|
|
EXE_FILE = common.get_path("bin", "renamed_posh.exe")
|
|
PS1_FILE = common.get_path("bin", "Invoke-ImageLoad.ps1")
|
|
|
|
|
|
@common.requires_os(*metadata.platforms)
|
|
def main():
|
|
winword = "C:\\Users\\Public\\winword.exe"
|
|
user32 = "C:\\Windows\\System32\\user32.dll"
|
|
dll = "C:\\Users\\Public\\wmiutils.dll"
|
|
ps1 = "C:\\Users\\Public\\Invoke-ImageLoad.ps1"
|
|
wmiprvse = "C:\\Users\\Public\\WmiPrvSE.exe"
|
|
common.copy_file(EXE_FILE, winword)
|
|
common.copy_file(user32, dll)
|
|
common.copy_file(PS1_FILE, ps1)
|
|
common.copy_file(EXE_FILE, wmiprvse)
|
|
|
|
common.log("Loading wmiutils.dll into fake winword")
|
|
common.execute([winword, "-c", f"Import-Module {ps1}; Invoke-ImageLoad {dll}"], timeout=10)
|
|
common.execute([wmiprvse, "/c", "powershell"], timeout=1, kill=True)
|
|
common.remove_files(winword, dll, ps1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
exit(main())
|