Older versions of HP’s Digital Imaging monitor (specifically the HP Digital Imaging - All-in-One suite) used a component internally referenced as "FIS" (Functional Interop System). In these cases, fis-pass.dll handles background data passing between the printer software and the Windows registry.
If you work in finance, banking, or use enterprise-level security software for password management, this file is likely legitimate. It acts as a bridge between an application (like a browser extension or corporate portal) and a secure credential store. Here is where it gets tricky. The most frequent appearance of fis-pass.dll in home environments isn't banking—it's HP printer software . fis-pass.dll
sfc /scannow This fixes corrupted Windows system files that might be conflicting with the DLL. Use Windows Defender Offline or Malwarebytes. Pay special attention to scheduled tasks and startup entries. Final Verdict: Should You Delete It? Do not delete it unless you are 100% sure it is malware. It acts as a bridge between an application
The Big Question: Is fis-pass.dll a Virus or Malware? Because the name sounds generic ("pass" often implies password theft), malware authors have been known to use similar naming conventions to hide in plain sight. sfc /scannow This fixes corrupted Windows system files