Files
sigma-rules/rta/exec_nohup.py
T
2023-10-03 10:47:58 -04:00

43 lines
1.1 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.
from . import common
from . import RtaMetadata
metadata = RtaMetadata(
uuid="b2faa842-ffc9-41c6-baed-8008c9749a52",
platforms=["macos"],
endpoint=[],
siem=[
{
"rule_name": "Suspicious Nohup Execution",
"rule_id": "3f18726c-4897-41dc-8426-15da95b8482f",
}
],
techniques=["T1059", "T1059.004", "T1564", "T1564.003"],
)
@common.requires_os(*metadata.platforms)
def main():
test_file = "/tmp/test.txt"
masquerade = "/tmp/bash"
common.create_macos_masquerade(masquerade)
# Execute command
command = f"nohup {test_file}"
common.log("Launching bash commands to mimic suspicious nohup execution")
with common.temporary_file("testing", test_file):
common.execute([masquerade, "childprocess", command, "&"], timeout=10, kill=True)
# cleanup
common.remove_file(masquerade)
if __name__ == "__main__":
exit(main())