# 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="7c4e0d1e-e80a-465a-9612-a319800390f4", platforms=["windows"], endpoint=[], siem=[{ 'rule_id': 'e2f9fdf5-8076-45ad-9427-41e0e03dc9c2', 'rule_name': 'Suspicious Process Execution via Renamed PsExec Executable' }], techniques=['T1569', 'T1569.002'], ) EXE_FILE = common.get_path("bin", "renamed_posh.exe") RENAMER = common.get_path("bin", "rcedit-x64.exe") @common.requires_os(*metadata.platforms) def main(): psexesvc = "C:\\Users\\Public\\rta.exe" rcedit = "C:\\Users\\Public\\rcedit.exe" common.copy_file(RENAMER, rcedit) common.copy_file(EXE_FILE, psexesvc) common.log("Modifying the OriginalFileName attribute") common.execute([rcedit, psexesvc, "--set-version-string", "OriginalFilename", "psexesvc.exe"]) common.execute([psexesvc], timeout=2, kill=True) common.remove_files(rcedit, psexesvc) if __name__ == "__main__": exit(main())