The EMP.dll file is part of a bypass for digital rights management (DRM) and is often flagged as a "Trojan" or "Malicious" by security software. While this is often a false positive in the context of game cracks, only restore or download this file if you trust the source you obtained the game from.
The "AC Valhalla EMP.dll exclusive" is not an official game feature or a developer-created mod. It is a component of a software crack created by the scene figure EMPRESS to bypass the game's anti-tamper protection. It represents a technical achievement in reverse engineering but carries the inherent risks associated with downloading and executing unsigned, third-party executable code. ac valhalla empdll exclusive