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Monday, May 7, 2012

How to Fud Trojans/keyloggers with Hex Editing &File Splitting method | Every server is undetectable

hey guys this is the best way to FUD your spyware i used this method and i found it is 100% working this tut is not generated by me but i try this method so i like to share this with all of my blog visitors..!!

tools required :

1. any antivirus- avast is used in this TuT

2. file sprinle:

3. Hex editor:

 grab the server you want to edit mine is going to be a Spyrex keylogger server.

Before we begin turn AntiVirus off.
You result may vary on AntiVirus your using. 

Now place you server in a folder I recommend naming it A trust me on this. Now my server name is test.exe.

Okay now once you have placed the server in a file lets scan it.
 it got caught :D

Ok now where to start open The File Splitter and Calc.exe to split the  file.
the file splitter browse to the server you want to split and choose 
Custom size. Now it tells me that this server is exactly 53,495 bytes 
and I want to split it into 4 pieces. So I go to Calc and divide it by 4
now place the number you got after dividing it and place it in the 
splitter custom size box like I have at the bottom. Now click on Split.

Now you should get the files in the same directory like I have below.

Now scan each of them to figure out witch file we have to split again.

 Now once you have figured it out make a new folder named the part 
number that was detected now I got part 3 so I'm gonna make a new folder
named 3 . 

Now I
hope you didn't close file splitter if so reopen it and browse to 
test.exe.3 to split and change the output folder to 3 like I have in the
picture below. We are also going to split this file into 4 pieces again
so open up Calc and divide by 4.
I made a drawing on this if your confused 

Now you should have this inside folder named 3.

scan each file again to figure out witch file we need to split but also
be aware of how small the file is getting. Once you figure out witch 
file needs splitting make a new folder with the parts name. I got part 
test.exe.3.3 so I am going to make a new folder and name it 3.

once you made new folder named 3 open up file splitter and browse to 
the file that got detected mine was test.exe.3.3 and pick the output 
directory to the folder we just made witch was the folder named 3.

browse to the new folder and scan the new files we split. As you can 
see test.exe.3.3.4 was detected so I'm gonna make a new folder and name 
it 4.

Now in file splitter pick the file that got detected witch was test.exe.3.3.4 and choose the new folder we made named 4.

 Now lets scan the new files and see witch got detected ocne we find it open it up with the HEX editor and see if its still to big to figure out what we need to change.

Ok so it's test. that we need to edit do open it up with your favorite hex editor or use the one I provided earlier. Once you open it it will look something like this.

the virus signature is in here don't get scared its not that hard now 
my method of figuring it is looking for something that stands out or 
guesssing. All you really have to do is change a letter from capital to a
lower case one now what worked for me was changing D to a lower case 
from the word DLLHOOKSTRUCT. 

Now save it exit and scan it it should be undectable.

Congratz now its FUD now all you need to do it compile it and scan it one more time and run it to test.

Now compiling I will show you one example and you can figure out the rest by your own.

Now you see the splitter icon inside your folder click on it and it will recompile the file.


once you made that file copy it and go back one directory and past it 
then it will ask you to replace it click yes and keep doing this till 
you go back to first directory. And your done.
you are finished :D i hope you like this tut

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