Hello jnowlin, and welcome to PCHF.
Please run HijackThis and place a checkmark by the following entries:
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http:/ red.clientapps.yahoo.com/customize/ie/defaults/sb/sbcydsl/*Yahoo! SearchBar Home Page
O2 - BHO: (no name) - {73364D99-1240-4dff-B12A-67E448373148} - C:\WINDOWS\system32\ipv6mons.dll
O4 - HKLM\..\Run: [RecoverFromReboot] C:\WINDOWS\Temp\RecoverFromReboot.exe
Close all other windows except HijackThis and press "Fix Checked". Then close HijackThis and restart the computer.
- Please download the Killbox.
- Unzip it to the desktop but do NOT run it yet.
- Then please reboot into Safe Mode by restarting your computer and pressing F8 as your computer is booting up. Then select the Safe Mode option.
- Once in Safe Mode, please run Killbox.
- Click "Delete on Reboot".
- Paste the following into the top "Full Path of File to Delete" box.
C:\WINDOWS\system32\ipv6mons.dll
- Click the red-and-white "Delete File".
- Click "Yes" at the Delete on Reboot prompt.
- Click "No" at the Pending Operations prompt.
Post a new HijackThis log back into your next reply.
P.S. Do you do online banking or any other form of financial transactions on your computer?