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sigma-rules/rta/powershell_base64_gzip.py
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2022-03-29 09:16:21 -05:00
# 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.
# Name: PowerShell with base64/gzip
# RTA: powershell_base64_gzip.py
# ATT&CK: T1140
# Description: Calls PowerShell with command-line that contains base64/gzip
from . import common
@common.requires_os(common.WINDOWS)
def main():
common.log("PowerShell with base64/gzip")
command = 'powershell.exe -noni -nop -w hidden -c &([scriptblock]::create((New-Object IO.StreamReader(New-Object IO.Compression.GzipStream((New-Object IO.MemoryStream(,[Convert]::FromBase64String(aaa)' # noqa: E501
common.execute(command)
if __name__ == "__main__":
exit(main())