53 lines
1.6 KiB
Python
53 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: Microsoft HTA tool (mshta.exe) with Network Callback
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# RTA: mshta_network.py
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# ATT&CK: T1170
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# Description: Generates network traffic from mshta.exe
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from . import common
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from . import RtaMetadata
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HTA_FILE = common.get_path("bin", "beacon.hta")
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metadata = RtaMetadata(
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uuid="83465fca-25ae-4d6d-b747-c82cda75b0ae",
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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": "c2d90150-0133-451c-a783-533e736c12d7", "rule_name": "Mshta Making Network Connections"},
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{"rule_id": "a4ec1382-4557-452b-89ba-e413b22ed4b8", "rule_name": "Network Connection via Mshta"},
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],
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techniques=["T1127", "T1218"],
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)
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@common.requires_os(*metadata.platforms)
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@common.dependencies(HTA_FILE)
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def main():
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# http server will terminate on main thread exit
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# if daemon is True
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common.log("MsHta Beacon")
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server, ip, port = common.serve_web()
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common.clear_web_cache()
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new_callback = "http://%s:%d" % (ip, port)
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common.log("Updating the callback to %s" % new_callback)
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common.patch_regex(HTA_FILE, common.CALLBACK_REGEX, new_callback)
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mshta = "mshta.exe"
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common.execute([mshta, HTA_FILE], timeout=3, kill=True)
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server.shutdown()
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if __name__ == "__main__":
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exit(main())
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