What is The Moon malware?
Linksys is aware of the malware called The Moon that has affected select older Linksys Wi-Fi Routers and Wireless-N access points and routers. We will be working on the affected products with a firmware fix that is planned to be posted on our website in the coming weeks.
The Moon malware bypasses authentication on the router by logging in without actually knowing the admin credentials. Once infected, the router starts flooding the network with ports 80 and 8080 outbound traffic, resulting in heavy data activity. This can be manifested as having unusually slow Internet connectivity on all devices.