It appears that the measures I took to rid my computer of the Virtumonde trojan horse were successful. The pop-ups are gone, Windows Updater is still turned on, and my Google search results lead me to the correct page when I click them. Here's what I did.
- Close the web browser when the pop ups appeared
- Run an anti-spyware program (I ran SpyBot).
- Run a second anti-spyware program (I ran AdAware) as insurance.
- Reboot the computer with the internet connection turned off (I unplugged my cable modem)
- Run an anti-spyware program again (I used SpyBot). I still found a remnant of Virtumonde at this point.
- Reboot the computer with the internet connection turned on.
- Run an anti-spyware program yet again. Again, I used SpyBot. At this point, the program found no spyware.
- Open browser and cross your fingers.