Ross Wolf
a0d3b4bd23
Co-Authored-By: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-Authored-By: Daniel Stepanic <57736958+dstepanic17@users.noreply.github.com> Co-Authored-By: David French <56409778+threat-punter@users.noreply.github.com> Co-Authored-By: Joe Desimone <56411054+joe-desimone@users.noreply.github.com> Co-Authored-By: Justin Ibarra <brokensound77@users.noreply.github.com>
43 lines
1.1 KiB
Python
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;
|
|
# you may not use this file except in compliance with the Elastic License.
|
|
|
|
# Name: Powershell with Suspicious Arguments
|
|
# RTA: powershell_args.py
|
|
# ATT&CK: T1140
|
|
# Description: Calls PowerShell with suspicious command line arguments.
|
|
|
|
import base64
|
|
import os
|
|
|
|
from . import common
|
|
|
|
|
|
def encode(command):
|
|
return base64.b64encode(command.encode('utf-16le'))
|
|
|
|
|
|
@common.requires_os(common.WINDOWS)
|
|
def main():
|
|
common.log("PowerShell Suspicious Commands")
|
|
temp_script = os.path.abspath("tmp.ps1")
|
|
|
|
# Create an empty script
|
|
with open(temp_script, "w") as f:
|
|
f.write("whoami.exe\nexit\n")
|
|
|
|
powershell_commands = [
|
|
['powershell.exe', '-ExecutionPol', 'Bypass', temp_script],
|
|
['powershell.exe', 'iex', 'Get-Process'],
|
|
['powershell.exe', '-ec', encode('Get-Process' + ' ' * 1000)],
|
|
]
|
|
|
|
for command in powershell_commands:
|
|
common.execute(command)
|
|
|
|
common.remove_file(temp_script)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
exit(main())
|