eric-forte-elastic
80 lines
2.0 KiB
Python
80 lines
2.0 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: Unexpected Network Activity from Microsoft Tools
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# RTA: unusual_ms_tool_network.py
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# ATT&CK: T1127
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# Description: Creates network traffic from a process which is named to match common administration and developer tools
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# that do not typically make network traffic unless being used maliciously.
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import shutil
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import sys
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from pathlib import Path
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from . import RtaMetadata, common
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if sys.version_info > (3,):
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urlliblib = "urllib.request"
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else:
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urlliblib = "urllib"
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metadata = RtaMetadata(
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uuid="cf94f5cc-5265-4287-80e5-82d9663ecf2e",
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platforms=["windows"],
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endpoint=[],
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siem=[
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{
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"rule_id": "1fe3b299-fbb5-4657-a937-1d746f2c711a",
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"rule_name": "Unusual Network Activity from a Windows System Binary",
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},
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{"rule_id": "610949a1-312f-4e04-bb55-3a79b8c95267", "rule_name": "Unusual Process Network Connection"},
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],
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techniques=["T1127"],
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)
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process_names = [
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"bginfo.exe",
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"msdt.exe",
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"ieexec.exe",
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"cdb.exe",
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"dnx.exe",
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"rcsi.exe",
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"csi.exe",
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"cmstp.exe",
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"xwizard.exe",
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"fsi.exe",
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"odbcconf.exe",
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]
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def http_from_process(name, ip, port):
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path = Path(common.BASE_DIR) / name
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common.log("Making HTTP GET from %s" % path)
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shutil.copy(sys.executable, path)
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common.execute(
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[
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path,
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"-c",
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"from %s import urlopen ; urlopen('http://%s:%d')" % (urlliblib, ip, port),
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]
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)
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common.remove_file(path)
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@common.requires_os(*metadata.platforms)
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def main():
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server, ip, port = common.serve_web()
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for process in process_names:
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http_from_process(process, ip, port)
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server.shutdown()
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if __name__ == "__main__":
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exit(main())
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