# 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. import sys from . import RtaMetadata, common metadata = RtaMetadata( uuid="a2217fc5-7105-4457-98fe-1cd5f810dc1a", platforms=["linux"], endpoint=[ { "rule_name": "Suspicious Echo Execution", "rule_id": "a13c8f01-36a5-4ad7-a282-8d297cf62860", }, ], techniques=["T1543", "T1053", "T1037", "T1546"], ) @common.requires_os(*metadata.platforms) def main() -> None: common.log("Creating a fake executable..") masquerade = "/tmp/sh" source = common.get_path("bin", "linux.ditto_and_spawn") common.copy_file(source, masquerade) common.log("Granting execute permissions...") common.execute(["chmod", "+x", masquerade]) commands = [masquerade, "-c", "echo /dev/tcp/foo"] common.execute([*commands], timeout=5, kill=True) common.log("Cleaning...") common.remove_file(masquerade) common.log("Simulation successfull!") if __name__ == "__main__": sys.exit(main())