Police criminal e-crime unit

[Scott]

Glad to hear you kind of have it sorted. Personally if a system has been compromised to that level, I would usually reformat and reinstall Windows, while not connected to the internet, and install some AV from a USB drive, before connecting. It might also be worth telling your brother to stop looking at so many dodgy sites, primarily warez sites as I'm assuming that's the sort of thing he was going on before.