I have Windows XP Professional.
I had a problem with unwarranted pop-ups referencing my need for a product called "Antivirus Plus", porn links being created on my desktop, and slowness that we ultimately end in my computer no longer responding to clicks or other commands. The virus also attempted to block many of the anti-virus things I tried to run, like Malwarebytes. Through a break (in which the virus somehow caused my computer to no longer recognize executables - hence it's own execution was halted), I was able to run a full scan, and most symptoms disappeared on restart.
However, there seems to be some sort of proxy cast over my internet connection through that PC, as it will not allow programs like AVG to connect for update, I can't browse to some sites at all like "www.microsoft.com". It seems the virus is inhibiting my browsing to attempt to stop me from getting to things that could remove it or help.
How do I get this removed? It appears that Malwarebytes can't find this problem or fix it in the scan. Is there something else I can use?