To make FUD CRYPTER

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Arvind Sharma

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Sep 18, 2012, 6:38:20 PM9/18/12
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I want to make a FUD CRYPTER using python .... but i am not getting
from where to start ? Can anyone help me for this .. thanx in
advance.. If some tutorials are there then please post the link .

Dinesh Shetty

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Sep 19, 2012, 3:58:45 AM9/19/12
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Just a query ... why do you want to use python to write a cryptor? .. there are other higher languages which can be used for it ... you'll still have to write the stubs in C right? as the stubz in python would be of quite a huge size from what i understand... I may be wrong though.. but if i were you.. i'd look into what alternatives i have :)


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Shubham Mittal

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Sep 19, 2012, 6:46:08 AM9/19/12
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Whatever crypter you will make will encapsulate its stuff with a particular techniques which will later on be detected by any of antivirus (same as it happened with encoders in Metasploit). 

One of my suggestion: Try to crypt the files using some dynamic variable which will give diversity to the output each and every time so that even if antivirus starts detecting one template, it will not be able to make signature for others.


Shubham Mittal
Information Security Researcher

Sunil Kumar

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Sep 19, 2012, 8:08:42 AM9/19/12
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have a look at this
the idea it uses is interesting.
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Shubham Mittal

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Sep 19, 2012, 11:31:02 AM9/19/12
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I wrote a small blog post few days back; covering how to use this PE crypter. Some idea can be taken from this crypter from nullsecurity.net


Shubham Mittal
Information Security Researcher




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