Definitely a scam, but I'm not sure exactly how it is a scam. Could it be distributing malware to other devices sharing the network? Maybe messing with the rout

Definitely a scam, but I'm not sure exactly how it is a scam. Could it be distributing malware to other devices sharing the network? Maybe messing with the router firmware and phoning home (allowing for a follow-up remote attack)? Sniffing for non-SSL logins/credit card info?