1595406539.vac – Popular

The software Virtual Audio Cable uses the .vac extension for some of its configuration or driver-related components. If you have audio routing software installed, this file may be a legitimate part of that toolkit.

Use Microsoft Defender or Malwarebytes to perform a "Custom Scan" on the specific folder containing the file to ensure it isn't malicious. 1595406539.vac

Because the filename is non-standard, it is important to verify its safety: The software Virtual Audio Cable uses the

Valve's anti-cheat system occasionally generates temporary or cached data files. These files are typically stored in game directories or the Steam folder to help identify unauthorized modifications to game files. 1595406539.vac

You can upload the file to VirusTotal to have it analyzed by dozens of different antivirus engines simultaneously.