shashank-elastic
67 lines
2.1 KiB
Python
67 lines
2.1 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: Scheduled Task Privilege Escalation
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# RTA: schtask_escalation.py
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# signal.rule.name: Local Scheduled Task Commands
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# signal.rule.name: Whoami Process Activity
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# signal.rule.name: Svchost spawning Cmd
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# signal.rule.name: Net command via SYSTEM account
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# ATT&CK: T1053
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import time
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from pathlib import Path
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from . import RtaMetadata, common
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metadata = RtaMetadata(
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uuid="1a61241e-5b1b-44ec-8c9f-3ae4652550be",
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platforms=["windows"],
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endpoint=[],
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siem=[
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{"rule_id": "afcce5ad-65de-4ed2-8516-5e093d3ac99a", "rule_name": "Local Scheduled Task Creation"},
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{"rule_id": "ef862985-3f13-4262-a686-5f357bbb9bc2", "rule_name": "Whoami Process Activity"},
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{"rule_id": "fd7a6052-58fa-4397-93c3-4795249ccfa2", "rule_name": "Svchost spawning Cmd"},
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],
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techniques=["T1033", "T1053", "T1059"],
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)
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def schtasks(*args, **kwargs):
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return common.execute(["schtasks.exe"] + list(args), **kwargs)
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@common.requires_os(*metadata.platforms)
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def main():
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common.log("Scheduled Task Privilege Escalation")
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task_name = "test-task-rta"
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file_path = Path("task.log").resolve()
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command = "cmd.exe /c whoami.exe > " + str(file_path)
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# Delete the task if it exists
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code, output = schtasks("/query", "/tn", task_name)
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if code == 0:
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schtasks("/delete", "/tn", task_name, "/f")
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code, output = schtasks("/create", "/tn", task_name, "/ru", "system", "/tr", command, "/sc", "onlogon")
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if code != 0:
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common.log("Error creating task", log_type="!")
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return
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# Run the task and grab the file
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code, output = schtasks("/run", "/tn", task_name)
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if code == 0:
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time.sleep(1)
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common.print_file(file_path)
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time.sleep(1)
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common.remove_file(file_path)
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schtasks("/delete", "/tn", task_name, "/f")
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if __name__ == "__main__":
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main()
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