Battle.net
Battle.net.exe is the Battle.net launcher (formerly the Blizzard App), the PC client for Activision-Blizzard titles including Call of Duty, World of Warcraft, Diablo IV, Overwatch 2, StarCraft II, and Hearthstone. Microsoft completed its acquisition of Activision-Blizzard in October 2023, so this launcher is now part of the Microsoft Gaming portfolio.
What installing it does to your system: Battle.net runs as a user-mode process with no kernel driver. It stays resident in the background by default for friend presence, chat, and pending downloads, and it auto-starts at Windows boot unless that is turned off in the launcher's settings. The launcher manages a Battle.net account (separate from Microsoft and Xbox accounts even after the acquisition, as of this writing), payment information, and the game library.
If you have any Activision-Blizzard title installed, this launcher is expected. Battle.net Authenticator (mobile or hardware) is the practical hygiene step for the account.
Catalogued from Vera's own observations across real sessions, surfaced only after the process has been seen on multiple independent machines. The reported publisher and category come from the process itself and Vera's curated app catalog. File paths are never published.
Vera Project. “Battle.net.” Vera Field Guide (Process). The Vera Project. https://www.veraproject.xyz/field-guide/processes/battle-net