At least I can help at least one person in this thread
the virus found in:
is most likely the reason why you cannot access those websites, the hosts file can be used to change where urls point to.
and edit it to so only
the following is in it:
the lines that start with an '#' are actually comments, so they are not important, you don't need to delete those lines.
Hope this helps a little bit
Edit: i'm guessing that AGOBOT (aka GAOBOT) will just change the hosts file back, but it's a temporary solution.