# 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())