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

59 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.
from . import common
from . import RtaMetadata
from multiprocessing import Process
metadata = RtaMetadata(
uuid="61369084-af6a-4fd0-903f-b44467f5d6e7",
platforms=["macos"],
endpoint=[],
siem=[{"rule_name": "Potential SSH Brute Force Detected", "rule_id": "ace1e989-a541-44df-93a8-a8b0591b63c0"}],
techniques=["T1110"],
)
def test(masquerade, masquerade2):
common.execute([masquerade2, "childprocess", masquerade], timeout=0.3, kill=True)
@common.requires_os(*metadata.platforms)
def main():
masquerade = "/tmp/sshd-keygen-wrapper"
masquerade2 = "/tmp/launchd"
common.create_macos_masquerade(masquerade)
common.create_macos_masquerade(masquerade2)
# Execute command
common.log("Launching fake ssh keygen commands to mimic ssh bruteforce")
processes = []
for i in range(25):
p = Process(
target=test,
args=(
masquerade,
masquerade2,
),
)
processes.append(p)
for i in processes:
i.start()
for i in processes:
i.join()
# cleanup
common.remove_file(masquerade)
common.remove_file(masquerade2)
if __name__ == "__main__":
exit(main())