Welcome to the community. 
First of all all, please do not triple post (making one post after the other with no break in between). This is a form of spam. Use the edit button on the bottom of your post instead to add new information. I have merged your three posts together.
This issue you are experiencing is called a false positive. WeMod is safe. You will need to add WeMod as an exception in your antivirus program.
In the future, please use the search button before posting. You would have found information about why you see this and how to resolve it.
See here for example: Windows Defender marked WeMod as a Trojan.