eric-forte-elastic
52 lines
1.7 KiB
Python
52 lines
1.7 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="84579cd0-2b30-4846-9b4e-9663ae2c400a",
|
|
platforms=["windows"],
|
|
endpoint=[
|
|
{"rule_name": "Suspicious Windows Script File Name", "rule_id": "8c69476a-d8ea-46da-8052-6a4f9254125c"},
|
|
{"rule_name": "Execution from Unusual Directory", "rule_id": "16c84e67-e5e7-44ff-aefa-4d771bcafc0c"},
|
|
{"rule_name": "Binary Masquerading via Untrusted Path", "rule_id": "35dedf0c-8db6-4d70-b2dc-a133b808211f"},
|
|
{
|
|
"rule_name": "Script Execution via Microsoft HTML Application",
|
|
"rule_id": "f0630213-c4c4-4898-9514-746395eb9962",
|
|
},
|
|
],
|
|
siem=[],
|
|
techniques=["T1036", "T1218", "T1566", "T1059"],
|
|
)
|
|
|
|
EXE_FILE = common.get_path("bin", "renamed_posh.exe")
|
|
RENAMER = common.get_path("bin", "rcedit-x64.exe")
|
|
|
|
|
|
@common.requires_os(*metadata.platforms)
|
|
def main():
|
|
mshta = "C:\\Users\\Public\\mshta.exe"
|
|
rcedit = "C:\\Users\\Public\\rcedit.exe"
|
|
|
|
common.copy_file(RENAMER, rcedit)
|
|
common.copy_file(EXE_FILE, mshta)
|
|
|
|
cmd = "ls ~\\Downloads\\*.pdf.js"
|
|
# Execute command
|
|
common.log("Modifying the OriginalFileName attribute")
|
|
common.execute(
|
|
[rcedit, mshta, "--set-version-string", "OriginalFileName", "mshta.exe"],
|
|
timeout=10,
|
|
)
|
|
common.execute([mshta, "/c", cmd], timeout=5, kill=True)
|
|
|
|
common.remove_files(mshta, rcedit)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
exit(main())
|