|It is a result of the DOS.AUTOCAT VIRUS!
DoS.Autocat is a Denial of Service (DoS) hacktool. The DoS is accomplished by ICMP packet flooding.
To remove this virus, please delete register key in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
with value "Microsoft Windows Update Service"="%winsys%\wupdmgr32.exe"
You can do it with Greatis Startup Optimizer.
Also you must start your antivirus program, run full system scan and delete all the files detected as DoS.Autocat.