If you run a Windows machine with ANY browser- not just Internet Explorer- and you can read this post, but you cannot get to www.windowsupdate.com, or GRIsoft.com (home of AVG antivirus), or Trend Micro, or Sophos, McAfee or Kaspersky or any other antivirus site, assume you are already infected with ConFicker. Take your computer offline and seek professional assistance to get it disinfected and patched.
For more of the gory details, go read
this over at databeast's page. This is serious folks. Serious as can be. Expect the possibility that the whole damn internet may have issues April first.
Repost. E-mail to people who aren't on LJ.