Files
sigma-rules/rta/linux_persistence_scheduled_task_executing_sus_located_binary.py
T
2024-08-26 23:57:42 +05:30

41 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="5b9be46b-18f2-4b74-9003-36d763c5d887",
platforms=["linux"],
endpoint=[
{
"rule_name": "Scheduled Job Executing Binary in Unusual Location",
"rule_id": "f2a52d42-2410-468b-9910-26823c6ef822",
},
],
techniques=["T1543", "T1053", "T1543"],
)
@common.requires_os(*metadata.platforms)
def main() -> None:
common.log("Creating a fake cron executable..")
masquerade = "/tmp/cron"
source = common.get_path("bin", "netcon_exec_chain.elf")
common.copy_file(source, masquerade)
common.log("Granting execute permissions...")
common.execute(["chmod", "+x", masquerade])
commands = [masquerade, "exec", "-c", "/dev/shm/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())