How to remove the pccomdef virus
Most antivirus programs identify pccomdef.exe as malware.
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Pccomdef.exe file information
The process known as PCComDef20060418 or PCComDef appears to be part of software PCComDef20060418 or PCComDef by Celanese or Celanese International.
Description: pccomdef.exe is located in a subfolder of C:\Windows\System32.
Known file sizes on Windows 7/XP are 170,308 bytes (33% of all occurrences), 170,363 bytes or 174,837 bytes. 
Pccomdef.exe is an unknown file in the Windows folder. The program is not visible. Program uses ports to connect to a LAN or the Internet. The file is not a Windows system file.
pccomdef.exe is able to record inputs and hide itself.
Therefore the technical security rating is 70% dangerous.
Recommended: Identify pccomdef.exe related errors
Important: Some malware camouflages itself as pccomdef.exe, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the pccomdef.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
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Pccomdef scanner
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Other processes
webupdate.exe ecobtn.exe svchost.exe.exe pccomdef.exe elementsautoanalyzer.exe xfigsys2.exe elodkmon.exe fppservice.exe cploader.exe mpxptray.exe pctwpasv.exe [all]