Hi doozerfan,Unfortunately, we cannot help with the situation you have.
First, we only work on Home computers. In addition, the situation you have is not suitable for online remedies.
Torpig (or Mebroot) is an extremely serious infection involving the Master Boot Record of the hard drives.
(This infection can come from the use of P2P programs like utorrent, Limewire, etc. used to download shared "free" music, etc.)
The infected computer becomes part of a "zombie" network under complete control of outside criminals.
Any computer thus infected with this "worm", can spread it to any other machine on the same network.
So, all the machines would have to be removed from the network, and they can only be put back, one at a time, as they are cleaned up.
One mistake about the connection of an infected one, and the whole process would have to start over.
Any of the computers need to be cleaned by a technician AFTER
being brought offline.
For this infection, this will usually involve "wiping" the drive, removing the partitions, then re-installing and reformatting the partitions.
Then Windows can be re-installed, updated and supplied with an up to date antivirus.
An example of the recommended process from University of California : http://cnc.ucr.edu/security/announcemen ... broot.html
For the future, computers used by the public should be operated from Limited type User accounts to restrict the damage from risky Internet behavior.
Sorry we cannot help directly, but hopefully this will give you some idea about the meaning of your situation.