It sound more like spyware or a Trojan to me:
Please download , unzip it to it's own folder.
Or save it to a disk and transfer it during safe mode (see below)
Now restart Windows in safe mode with network support:
After you see the BIOS screen and before Windows starts to load.
Start tapping the F8 key. The Windows Advanced Options Menu appears.
Use the Arrow key to ensure that the Safe Mode with network support option is selected.
Press Enter. The computer then begins to start in Safe mode with network support.
Start HijackThis and select 'Do a system scan and save a logfile'
Now post the contents of the logfile back into this thread
You should be able to access the internet from safe mode with network support.


