If it is sitting in C:\Windows\System32 , it is trying to pass as a system file.
This free service scans the file against over 70 different antivirus engines and will tell you if any have flagged it as malicious. 2. Check the File Properties Moon2_.dll
Look for fields like , Company , or Product name . This will usually tell you exactly what software depends on it. 3. Inspect the File Location If it is sitting in C:\Windows\System32 , it
Because Dynamic Link Library ( .dll ) files contain executable code that can interact directly with your system, you should handle unrecognized DLL files with caution. Here is how you can safely investigate it: 1. Scan it for Malware If it is sitting in C:\Windows\System32