Warning: Domestic routers under UPNP/Flash attack!

January 18, 2008

upnp.jpg

If your domestic router has UPnP turned ON (like mine before) and you open a infect/bad Flash (SFW) file, some bad guy out there could turn your computer into a zombie. This means, you internet access and your router could be used by other people without you realize it. The only thing you can do is to disable the option UPnP in your router. Read your manual and find something like what’s displayed in this post picture to disable the UPnP. All the story is far better described here.

After it, run this test (slow startup – have patience) to check how safe is your internet connection. Test for “file sharing” / “common ports” / “all service ports” and “messenger spam”

My setup was quite safe, except for Ping replying (now disabled). If for unknown reasons you’re still using Microsoft Internet Eplorer instead of Firefox, run also these tests.