Justin Ibarra
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License
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# 2.0; you may not use this file except in compliance with the Elastic License
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# 2.0.
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# Name: Suspicious WScript parent
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# RTA: suspicious_wscript_parent.py
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# signal.rule.name: Suspicious MS Outlook Child Process
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# ATT&CK: T1064, T1192, T1193
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# Description: WScript run with suspicious parent processes
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import os
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import time
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from . import common
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@common.requires_os(common.WINDOWS)
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def main():
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script_data = """
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WScript.CreateObject("wscript.shell")
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"""
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script_path = ".\\hello.vbs"
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with open(script_path, 'w') as f:
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f.write(script_data)
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cmd_path = "c:\\windows\\system32\\cmd.exe"
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for application in ["outlook.exe", "explorer.exe", "chrome.exe", "firefox.exe"]:
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common.log("Emulating %s" % application)
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app_path = os.path.abspath(application)
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common.copy_file(cmd_path, app_path)
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common.execute([app_path, "/c", "wscript.exe", "script_path"], timeout=1, kill=True)
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common.log("Killing wscript window")
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common.execute('taskkill /IM wscript.exe')
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common.log('Cleanup %s' % app_path)
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common.remove_file(app_path)
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common.log("Sleep 5 to allow procecsses to finish")
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time.sleep(5)
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common.log('Cleanup %s' % script_path)
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common.remove_file(script_path)
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if __name__ == "__main__":
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exit(main())
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