I recently noticed slow performance and non-response when using IE 7 (previously problem free). First I ran McAfee (found nothing), then StopZilla. StopZilla found something called Conhook.AG and cleaned it. However, every few days it finds it again. Browser performance seems to have been fixed though (no significant slow downs). When I first open IE 7, it does take longer than it used to (by a few seconds), but when the page loads, I am able to browse as usual. Also, and perhaps most importantly, I experience a blue screen that indicates winlogon.exe has encountered an error. This seems to happen at random whether I am browsing the internet or not
The process “winlogon.exe” runs in the background. It’s a part of the Windows Login subsystem. Winlogon is necessary for user authorization and checks the Windows XP activation code.
Note: The winlogon.exe file is located in the folder C:\Windows\System32. In other cases, winlogon.exe is a virus, spyware, trojan or worm! Check this with Security Task Manager.
on: 15th October 08