Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Google Hijack & Keyboard/Mouse problems

  • This topic is locked This topic is locked
2 replies to this topic

#1 jag150s


  • Members
  • 2 posts
  • Local time:10:27 AM

Posted 04 September 2010 - 01:27 PM

Have a difficult virus problem, and would appreciate any help.
Started with a Google hijack - being sent other places when I clicked on google results.
Then became a problem where my mouse & keyboard (PS2 style) would lock up as soon as I try to use the keyboard.
Can use a USB mouse successfully; haven't tried a USB keyboard.
Ran several anti-virus programs - Panda, Avast, Ad-Aware... they found one or two problems, which they fixed, but google hijack & keyboard problems persist.
Ran through the process on your site, and have attached logs.
Running WinXP
Help would be much appreciated, thanks!!!

Attached Files

BC AdBot (Login to Remove)


#2 jag150s

  • Topic Starter

  • Members
  • 2 posts
  • Local time:10:27 AM

Posted 05 September 2010 - 12:34 PM

Found the solution, though it took a bit of searching to figure out.
Discovered that my kbdclass.sys driver, which runs the keyboard, had been corrupted. Standard virus removers took out the viruses, and I replaced the driver with a clean one from elsewhere, but that didn't repair the keyboard problem, which would lock up the PS2 keyboard & mouse as soon as you tried to use them after rebooting. Could get a USB mouse to work, so at least had access to the computer & on screen keyboard.

The problem turned out to be that the virus added a couple keyboard drivers, and changed registry entries. If you search the registry for kbdclass, some of the results have a field called "Upper Filters" (there may be more than 1 registry entry with this field). That field should contain only kbdclass. Anything else should be deleted (unless you know it's something specific to your setup & is supposed to be there), and just like that, the problem goes away.

Hope this helps someone thumbup2.gif

#3 Budapest


    Bleepin' Cynic

  • Moderator
  • 23,579 posts
  • Gender:Male
  • Local time:03:27 AM

Posted 05 September 2010 - 04:32 PM

As this issue appears to be resolved I am closing the topic. Please send me (or any other Moderator) a Personal Message (PM) if you would like the topic re-opened.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users