If your PC has these problems, please read on. Else pl ignore.

1.       Task manager, command prompt does not open

2.       “Folder options” option not available in windows explorer (My Computer)

3.       When you insert a pen drive, for every folder there is an exe file of the same name on the pen drive.  For example if you create a folder “new folder” you get a file “new folder.exe” in the “new folder” folder. This symptom may or may not be present.

In the above case your PC is infected by a virus called brontok. Nod32 and many other antivirus software do not detect this virus.

 

The remedy is to download and run ftp://ftp.cc.iitk.ac.in/pub/windows/GeneralUtilities/Anti-virus/newfolder.exe

(original location : http://technodigits.wordpress.com/2007/07/18/new-folderexe-sohanad-virus-removal-tool/

When you run this utility please note that it will not install any program. It will ask you to reboot the PC. After the reboot the problem will most probably be corrected. I have tested this procedure on 3 such infected PCs with success.