This page may prove helpful in finding it. I know it's found in event viewer, the physical log file I'm not sure. If you can find it in event viewer you could copy paste the output. Have you checked your Startup programs for anything suspicious? To do so go to start, run box, and type msconfig and then hit enter. Go to the startup tab, try disabling all the entries under that (by removing the check marks) and then try restarting. If it is able to, you should try with half the programs disabled and half enabled until you can isolate the problem program/virus. You should also try running a virus scanner, malwarebytes alongside another anti virus program should work. If you don't have an anti virus, I'd recommend AVG which is free and seems to catch most viruses (it's a good habit to get into regular virus scanning, if you don't already). A lot of times we don't know the computers infected until a restart, so it may be coincidental that it happened after the updates (hopefully it is, otherwise it may get complicated). Also out of curiosity try running TDSSKiller
, it's fast and can sometimes fix the problem quickly (it's saved me a number of times).
Edited by Firespike, 16 November 2012 - 06:46 PM.