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

49 lines
1.4 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="4e6ded7e-23cb-460c-8a5b-21c5e5e8d6e8",
platforms=["linux"],
endpoint=[
{
"rule_name": "Potential Process Masquerading via Exec",
"rule_id": "e6669bc3-cb75-4fb3-91e0-ddaa06dd59b2",
},
],
techniques=["T1564", "T1059"],
)
@common.requires_os(*metadata.platforms)
def main() -> None:
common.log("Creating a fake executable..")
masquerade = "[foo]"
masquerade2 = "/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])
source = common.get_path("bin", "linux.ditto_and_spawn")
common.copy_file(source, masquerade2)
common.log("Granting execute permissions...")
common.execute(["chmod", "+x", masquerade2])
commands = [masquerade2, masquerade]
common.execute([*commands], timeout=5, kill=True)
common.log("Cleaning...")
common.remove_file(masquerade)
common.remove_file(masquerade2)
common.log("Simulation successfull!")
if __name__ == "__main__":
sys.exit(main())