Definately not good. Download and install Superantispyware and possible Spybot S&D as well. Make sure AVG is up to date with definitions. Uninstall Comodo firewall, reboot and re-install - I would have thought the firewall would have prevented any unusual behaviour but she may have inadvertantly allowed something out. Re-installing it should reset everything and she will need to allow things manually for a while. Disconnect from the internet and run AVG first, followed by each of the other solutions.
It might also be an idea to run them in safe mode as well before reconnecting to the internet. If there are problems found and they appear in System Volume Information" there may be something lurking in a System Restore Point which means that every reboot of the computer it reinstalls itself. If this is suspected turn off system restore and run everything again. Reboot and turn on system restore and reboot again. Good Luck!