: Maya calculates a digital fingerprint (checksum) for your userSetup scripts to ensure they haven't been altered by unauthorized processes or malware.
: Modern versions of Maya include native security variables [2]. Set MAYA_DISABLE_PYTHON_SCRIPT_LOADING=0 combined with custom script restriction variables to limit file execution locations [2].
If even a single character or space changes inside userSetup.py , the resulting hash changes completely. By calculating the file's hash at boot time and comparing it against a known, pre-approved master hash, Maya can instantly detect tampering and block execution. Step-by-Step Implementation Guide
Maya executes user-specific scripts automatically during initialization [1, 2]. The primary vectors for these executions are: : Runs early in the Maya startup sequence [1]. maya secure user setup checksum verification
A checksum is a unique digital fingerprint generated by running a cryptographic hash algorithm on a file's contents. Even a tiny change to the file—like adding a single space or changing one character—completely alters the resulting checksum.
Uncheck the box labeled .
: Once the Security Tools plug-in ( MayaScanner.py ) is loaded via the Plug-in Manager , it will log all its actions, including detections and removals, which you can review to understand why a file failed verification. : Maya calculates a digital fingerprint (checksum) for
: When installing third-party tools (like GT Tools ), this prompt may appear. In these cases, clicking "Yes" is standard, as the installer is intentionally modifying your startup scripts to load the new tool. User Experience Review Pros :
When a checksum mismatch occurs, do not just block execution locally. Program your verification script to send a silent webhook or log payload to a centralized monitoring system (like Splunk or ELK stack). This allows security teams to instantly detect if an artist is attempting to install an unauthorized tool or if an active malware strain is attempting to propagate through the network. Conclusion
Windows>Settings /Preferences>Preferences. Settings>Security From here uncheck Read and execute 'userSetup' scripts box. What is "Secure UserSetup Checksum verification"? : r/Maya If even a single character or space changes inside userSetup
Malicious scripts or corrupted files can overwrite these setup files, allowing harmful code to run every time a user opens Maya.
Display a clear, unambiguous dialog box to inform the artist that the system blocked a security anomaly.
: You can enable, disable, or modify these checks by navigating to Windows > Settings/Preferences > Preferences . Under the Security category, you will find options for "Read and execute 'userSetup' scripts" .
With this option enabled, the process is clear: if a script fails the hash check, Maya will stop and display a warning, prompting the user to either approve the new hash value (accepting the changes) or deny it.
Note: Compare your output directly with the string found under the section on the official Autodesk download page. If the strings do not match, delete the file and redownload it. Step 2: Isolating and Hardening the User Setup Environment