The userSetup.py script executes automatically every time Maya initializes. While useful for loading custom tools, it is also the primary vector for unauthorized script injections. Securing this file is your first line of defense. Isolate and Lock Initialization Scripts
: Configure Maya to ignore the local machine's Documents/maya/scripts directory during startup. Implement Controlled Bootstrap Environments
import hashlib import maya.utils as utils def verify_and_execute(script_path, expected_hash): with open(script_path, "rb") as f: file_data = f.read() current_hash = hashlib.sha256(file_data).hexdigest() if current_hash == expected_hash: exec(file_data) else: raise SecurityError(f"Checksum mismatch for script_path! Execution blocked.") # The TD defines the exclusive hash for the current production version APPROVED_HASH = "8f43ac..." NETWORK_PATH = "//studio_server/maya/v2024/userSetup.py" utils.executeDeferred(lambda: verify_and_execute(NETWORK_PATH, APPROVED_HASH)) Use code with caution. Benefits of the Exclusive Approach
: Monkey-patch or restrict the subprocess , os.system , and builtins.exec functions within user tools to prevent scripts from spawning unauthorized background processes or shells. maya secure user setup checksum verification exclusive
In a production environment, you do not want unknown scripts altering your Maya behavior, modifying scene assets, or sending data to external sources.
The userSetup.py file is typically found in your Maya user documents folder, for example: C:\Users\ \Documents\maya\ \scripts\ or ~/ /maya/ /scripts/ 2. Handling Security Warnings
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The prompt " maya secure user setup checksum verification exclusive " refers to a security feature or notification found in Autodesk Maya
Maya Secure User Setup: Checksum Verification and Exclusive Execution
: Set MAYA_APP_DIR to a read-only network location or a strictly managed local directory. Isolate and Lock Initialization Scripts : Configure Maya
While the above framework stops malicious scripts from loading during boot, advanced environments should account for runtime security.
You do not recognize the changes or if you are suddenly seeing this warning without having modified your scripts.
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