Author Topic: Secure vlx file  (Read 1312 times)

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civil.eng

  • Mosquito
  • Posts: 18
Re: Secure vlx file
« Reply #15 on: January 02, 2021, 02:22:53 AM »
Hello everyone,
Recently, VLX programs are decompiled easily, and also .FAS files, it's not interesting, because we all have an Autolisp program that we want to keep it safe. so I'm going to find a way to bypass decompilers and keep VLX safe from the tools. what do you think? is there any way or trick to do that?

Thanks in advance.
Decompiler tools can only decompile standard Fas files. My counter measure is to make Fas no longer standard. I can change the instructions of Fas and use some rare instructions. You can also add a goto instruction to it, because there is goto in FAS, but not in LSP.

My main question was about .Vlx not .Fas, does your tools work only on fas file? I don't know about goto, could you secure attached .lsp file for test?? :

d2010

  • Newt
  • Posts: 125
Re: Secure vlx file
« Reply #16 on: January 02, 2021, 02:45:40 AM »
Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".



« Last Edit: January 02, 2021, 12:03:03 PM by d2010 »

baitang36

  • Newt
  • Posts: 80
Re: Secure vlx file
« Reply #17 on: January 02, 2021, 09:25:51 PM »
Hello everyone,
Recently, VLX programs are decompiled easily, and also .FAS files, it's not interesting, because we all have an Autolisp program that we want to keep it safe. so I'm going to find a way to bypass decompilers and keep VLX safe from the tools. what do you think? is there any way or trick to do that?

Thanks in advance.
Decompiler tools can only decompile standard Fas files. My counter measure is to make Fas no longer standard. I can change the instructions of Fas and use some rare instructions. You can also add a goto instruction to it, because there is goto in FAS, but not in LSP.
My main question was about .Vlx not .Fas, does your tools work only on fas file? I don't know about goto, could you secure attached .lsp file for test?? :
sumnum_ pro.fas It's an encrypted file
sumnum.fas.lsp Is the file generated by decompilation

baitang36

  • Newt
  • Posts: 80
Re: Secure vlx file
« Reply #18 on: January 02, 2021, 09:41:22 PM »
Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".
Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.

civil.eng

  • Mosquito
  • Posts: 18
Re: Secure vlx file
« Reply #19 on: January 03, 2021, 02:41:56 AM »
Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".
Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.
I have received it. and I've just checked it out, it's not secure at all, so that I could decompile the fas after encrypt it very easily,
Sorry for say that.

baitang36

  • Newt
  • Posts: 80
Re: Secure vlx file
« Reply #20 on: January 03, 2021, 07:00:08 AM »
Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".
Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.
I have received it. and I've just checked it out, it's not secure at all, so that I could decompile the fas after encrypt it very easily,
Sorry for say that.
It's a free version for you, just a demo. The paid version is more complicated than that
At present, there are more than 20 commercial software in use, and there is no source code theft problem。
You can send me a bigger Fas and I'll encrypt it with the paid version。email:5520971@qq.com

baitang36

  • Newt
  • Posts: 80
Re: Secure vlx file
« Reply #21 on: January 03, 2021, 10:18:37 AM »
so that I could decompile the fas after encrypt it very easily
try this

d2010

  • Newt
  • Posts: 125
Re: Secure vlx file
« Reply #22 on: January 03, 2021, 10:22:15 AM »
so that I could decompile the fas after encrypt it very easily
try this
Many year/s inside all-compilator-s, this question (Q2 down)
(MAI_LISTTOSTREAM   "d:/test_e.fas" (append  '( 01
If you replace the number=000 with other, then you can store the file.fas inside as "String". This benefit you can hide program.fas inside "String/s"
 :opps:
Q2=How to avoid the number 000 or \000?
« Last Edit: January 03, 2021, 10:29:10 AM by d2010 »

baitang36

  • Newt
  • Posts: 80
Re: Secure vlx file
« Reply #23 on: January 03, 2021, 08:48:31 PM »
so that I could decompile the fas after encrypt it very easily
try this
Many year/s inside all-compilator-s, this question (Q2 down)
(MAI_LISTTOSTREAM   "d:/test_e.fas" (append  '( 01
If you replace the number=000 with other, then you can store the file.fas inside as "String". This benefit you can hide program.fas inside "String/s"
 :opps:
Q2=How to avoid the number 000 or \000?


My packing program is relatively simple, each character is converted into three digits, which is a bit of a waste of space