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Getting error "wupdt.exe has completed an illegal operation"

Posted on 2004-09-27
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Last Modified: 2013-12-04
As I tried to launch IE I started getting this error.  "wupdt.exe has completed an illegal operation" and windows gives it the boot.  I believe it is apart of the IMISERV virus.  What is it and how do you get it off your system?
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Question by:Iggy79
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by:Iggy79
ID: 12163110
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LucF earned 150 total points
ID: 12163151
Hi Iggy79,

There are way more virusses that use this filename, the most common is Gaobot.
Please boot into safe mode and do a full systemscan with your favorite virusscanner.
Or http://housecall.antivirus.com (also from safe mode, so you can be sure it's not started by default.

Another thing you can do is check the following registry entries:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
Remove wupdt.exe in any case you find it. Then do a full virusscan in normal windows mode.

Greetings,

LucF
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