protections machine
54 lines
1.5 KiB
Python
54 lines
1.5 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 pathlib import Path
|
|
|
|
from . import RtaMetadata, common
|
|
|
|
metadata = RtaMetadata(
|
|
uuid="0612b920-62d8-4e1c-81c6-e6583571fc49",
|
|
platforms=["linux"],
|
|
endpoint=[
|
|
{
|
|
"rule_name": "Kill Command Executed from Binary in Unusual Location",
|
|
"rule_id": "b9935dcc-e885-4954-9999-3c016b990737",
|
|
},
|
|
],
|
|
techniques=["T1059", "T1562"],
|
|
)
|
|
|
|
|
|
@common.requires_os(*metadata.platforms)
|
|
def main() -> None:
|
|
# Path for the fake kill script
|
|
kill_script = "/dev/shm/rta"
|
|
|
|
# Create fake executable
|
|
masquerade = "/tmp/kill"
|
|
source = common.get_path("bin", "linux.ditto_and_spawn")
|
|
common.copy_file(source, masquerade)
|
|
common.execute(["chmod", "+x", masquerade])
|
|
|
|
# Create a fake script that executes the fake binary
|
|
with Path(kill_script).open("w", encoding="utf-8") as script:
|
|
script.write("#!/bin/bash\n")
|
|
script.write("/tmp/kill\n")
|
|
|
|
# Make the script executable
|
|
common.execute(["chmod", "+x", kill_script])
|
|
|
|
# Execute the fake script
|
|
common.log("Launching fake kill script")
|
|
common.execute([kill_script], timeout=5, kill=True, shell=True) # noqa: S604
|
|
|
|
# Cleanup
|
|
common.remove_file(kill_script)
|
|
common.remove_file(masquerade)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|