Welcome to the community @Radioactive-Kangaroo. 
That’s just a false positive, don’t worry.
Trainers and trainer software from anywhere on the internet will occasionally wake up an antivirus program. It’s purely because of the way that trainers work, which is by injecting values into your PC’s RAM to achieve certain results (cheats) in games.
The issue should be resolved by adding WeMod as an exception in your antivirus program.
See this thread for help locating the WeMod files that you should ideally add as an exception: Wemod was working, but now it is not