Yesterday my brother's computer was showing ads on almost every site, the same ads in the bottom right corner with a black close button. Today, my computer started showing them. I use the same network with him but as a public network to minimize the risk of network infection. The problem is that I NEVER install software from suspicious sources. Does anyone know something about this virus? I have some screenshots for some legit sites with those ads. So my computer is infected, no suspisous Chrome extensions or addons. Any suggestions? Thanks.
