Showing posts with label Virus Creation. Show all posts
Showing posts with label Virus Creation. Show all posts
Saturday, June 25, 2011
Hello friends, today i will explain you all how an anti-virus software works and detects virus. Most of you already know that what is anti-virus, but have you ever tried to understand how it works and why it requires updates regularly? How anti-virus searches for viruses and detects the virus in the file and eliminates it or heal it. Working of anti-virus involves two basic technologies namely:
1. Dictionary based continuous and fragmented string search
2. Suspicious activity detection (process manipulation)
So friends, lets start learning how an anti-virus works and detects virus and then eliminates and heals them.
Dictionary based continuous and fragmented string Search:
As the technique's name suggest, as dictionary signifies virus definitions database that is regularly updated as soon as new virus is being found (that is found by second technique). In dictionary based search technique, anti-virus softwaresearches a string by comparing the file with strings existing in virus definition's or database.
Now consider an hypothetical example for better understanding, suppose you have a file whose code is something like below:
Saturday, June 25, 2011 5
Monday, May 9, 2011
Hello Guys,Today lets discuss about how to create our own batch virus and spread itI could just you give the codes to paste in notepad and ask you to save files with extension .bat and your deadly batch viruses would be ready. But instead of that, I have focussed on making the basics of batch files clear and developing the approach to code your own viruses.
What are Batch Files ?
Lets begin with a simple example , Open your command prompt and change your current directory to 'desktop' by typing 'cd desktop' without quotes.
Now type these commands one by one
1. md x //makes directory 'x' on desktop
2. cd x // changes current directory to 'x'
3. md y // makes a directory 'y' in directory 'x'
We first make a folder/directory 'x', then enter in folder 'x',then make a folder 'y' in folder 'x' .
Now delete the folder 'x'.
Lets do the same thing in an other way. Copy these three commands in notepad and save file as anything.bat
Monday, May 9, 2011 0
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