There is no virus. Update your Windows Defender.
https://www.wowhead.com/news/windows-defender-wrongly-flagging-wow-addons-as-trojans-323858

Features

• Prevents you from destroying a Domination Shard in the following ways:
         1. Dragging a shard into a Domination Socket when a shard is already socketed into the item
         2. Destroying a Domination socketed item by dragging it out of your bag
         3. Destroying an upgraded Domination Shard by dragging it out of your bag
         4. Using the Soulfire Chisel to remove a shard when your bags are full
         5. Disenchanting an item with a socketed Domination Shard
         6. Selling an item socketed with a Domination Shard to a vendor
• Adds a "Remove" button next to the Domination Socket for 1-click removal of the shard (This only works if you have a chisel in your inventory)
• Adds a Domination Shard tray below the socket window for easy access to all shards that are in your inventory.
• Easily save and load shard sets without the need to socket each item individually (with LDB support)