That's the client library of their filter (vPlus). It's 100% trustable and is simply flagged due to it being packed for crack protection, as well as grabbing identifier values of your PC/network to enforce HWID/IP limits & modifying the client for features.
The filter is created by @

and is used by many servers for many years. You can check the website here:

or you can check their Discord server here:

to assure its legitimacy.
TL;DR It's not a trojan and you have nothing to be worried about.