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ConfuserEx Light Test

Go to solution Solved by Mr-Toms,

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For unpacking

1) cawk unpacker
2) dump after decryption
3) fix EP
4) Proxy call fixer by Davicore
5) Strings decryptor by CC
6) Switch killer by CC
7) Dump resources (empty)
ūüėé Clean cctor and <module>methods

(maybe 4, 5 and 6 can be replaced by cawk unpacker again)

I will check the key algo tomorrow, don't have time now.





Username = "Usuario"

Code = "161308"

int length = username.length();
int num2 = length + 2 - 4 + 40 + 10;
return Convert.ToString(419 * num2 * length - length);




EDIT2: I have received a few PMs asking how to fix EP, so I will post the videos I used as reference here. Following this 2 videos you should be able to unpack confuserex fully.



Edited by cachito
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  • Solution

First thing you need to do is know what protection used on the .exe

so as we can see its use compressor and my step isnt debugging it manually
to grab original .exe

my step is 
1. i always use ManagedJiterFr4 to grab original .exe 
drag n drop then press execute then continue and you will see the original exe there its renamed to a29p
2. then press set asm then save asm 
3. goto dnspy to remove the Tamper ( you can do it manually , theres alot of tutorial on YT)
4. after you remove the tamper dont forget to set the right Entry Point , Luckily in this case theres no renamer used in Namespace so we can easily choose the right EP)
5. Then you should remove Ref Proxy ( you can use any proxy call fixer )
6. and you should remove CFlow ( use universal cfex cflow remover )
7. Decrypt string using ConstantDec by CS

and i think theres error on Activate Button ? it doesnt show anything when we put wrong key / the right key



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