2023-03-20 07:56:51 -03:00
|
|
|
# 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="f62ebacb-5d53-4f74-ae72-b64b8b6c899f",
|
|
|
|
|
platforms=["windows"],
|
|
|
|
|
endpoint=[],
|
|
|
|
|
siem=[{
|
|
|
|
|
'rule_id': '17c7f6a5-5bc9-4e1f-92bf-13632d24384d',
|
|
|
|
|
'rule_name': 'Suspicious Execution - Short Program Name'
|
|
|
|
|
}],
|
|
|
|
|
techniques=['T1036', 'T1036.003'],
|
|
|
|
|
)
|
|
|
|
|
EXE_FILE = common.get_path("bin", "renamed_posh.exe")
|
|
|
|
|
RENAMER = common.get_path("bin", "rcedit-x64.exe")
|
|
|
|
|
|
|
|
|
|
|
2023-10-03 10:47:58 -04:00
|
|
|
@common.requires_os(*metadata.platforms)
|
2023-03-20 07:56:51 -03:00
|
|
|
def main():
|
|
|
|
|
rta = "C:\\Users\\Public\\a.exe"
|
|
|
|
|
rcedit = "C:\\Users\\Public\\rcedit.exe"
|
|
|
|
|
common.copy_file(RENAMER, rcedit)
|
|
|
|
|
common.copy_file(EXE_FILE, rta)
|
|
|
|
|
|
|
|
|
|
common.log("Modifying the OriginalFileName attribute")
|
|
|
|
|
common.execute([rcedit, rta, "--set-version-string", "OriginalFilename", "rta.exe"])
|
|
|
|
|
|
|
|
|
|
common.execute([rta], timeout=2, kill=True)
|
|
|
|
|
|
|
|
|
|
common.remove_files(rcedit, rta)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
|
exit(main())
|
