Files
sigma-rules/rta/powershell_from_script.py
T
2021-02-04 08:34:54 -09:00

40 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;
# you may not use this file except in compliance with the Elastic License.
# Name: PowerShell Launched from Script
# RTA: powershell_from_script.py
# signal.rule.name: Windows Script Executing PowerShell
# ATT&CK: T1064, T1192, T1193
# Description: Creates a javascript file that will launch powershell.
import os
import time
from . import common
@common.requires_os(common.WINDOWS)
def main():
# Write script
script_file = os.path.abspath("launchpowershell.vbs")
script = """Set objShell = CreateObject("Wscript.shell")
objShell.run("powershell echo 'Doing evil things...'; sleep 3")
"""
with open(script_file, 'w') as f:
f.write(script)
# Execute script
for proc in ["wscript", "cscript"]:
common.execute([proc, script_file])
time.sleep(3)
# Clean up
common.remove_file(script_file)
return common.SUCCESS
if __name__ == "__main__":
exit(main())