eric-forte-elastic
73 lines
2.2 KiB
Python
73 lines
2.2 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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from . import common
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from . import RtaMetadata
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metadata = RtaMetadata(
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uuid="78e59247-db65-412a-898c-2e757d695851",
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platforms=["windows"],
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endpoint=[
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{"rule_name": "Execution from Suspicious Directory", "rule_id": "9ba39516-651e-489f-8b6a-f5501e0c492d"},
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{
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"rule_name": "Executable File Creation Followed by Immediate Network Connection",
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"rule_id": "8d11d741-7a06-41a1-a525-feaaa07ebbae",
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},
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{"rule_name": "Unusual Kerberos Client Process", "rule_id": "b5c91c3e-9d2d-4df6-afb7-c9d236b5ebe2"},
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],
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siem=[],
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techniques=["T1558", "T1204", "T1036"],
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)
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EXE_FILE = common.get_path("bin", "renamed_posh.exe")
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PS1_FILE = common.get_path("bin", "Invoke-ImageLoad.ps1")
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RENAMER = common.get_path("bin", "rcedit-x64.exe")
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@common.requires_os(*metadata.platforms)
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def main():
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posh = "C:\\Users\\Public\\posh.exe"
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user32 = "C:\\Windows\\System32\\user32.dll"
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dll = "C:\\Users\\Public\\System.DirectoryServices.Protocols.test.dll"
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ps1 = "C:\\Users\\Public\\Invoke-ImageLoad.ps1"
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rcedit = "C:\\Users\\Public\\rcedit.exe"
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common.copy_file(EXE_FILE, posh)
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common.copy_file(user32, dll)
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common.copy_file(PS1_FILE, ps1)
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common.copy_file(RENAMER, rcedit)
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common.log("Modifying the OriginalFileName attribute")
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common.execute(
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[
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rcedit,
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dll,
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"--set-version-string",
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"OriginalFilename",
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"System.DirectoryServices.Protocols.test.dll",
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]
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)
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common.log("Loading System.DirectoryServices.Protocols.test.dll")
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common.execute(
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[
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posh,
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"-c",
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f"Import-Module {ps1}; Invoke-ImageLoad {dll};",
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"Test-NetConnection",
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"-ComputerName",
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"portquiz.net",
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"-Port",
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"88",
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],
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timeout=10,
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)
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common.remove_files(posh, dll, ps1)
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if __name__ == "__main__":
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exit(main())
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