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Thread: Decompiler

  1. #1
    Guest
    Anyone know where I can get a good decompiler for VB6? There was this program on my computer which deleted my win.com file. Luckily I have two computers and a spare floppy. I just want to decompile this (if I can) so I know what else it has done.

  2. #2
    Fanatic Member r0ach's Avatar
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    Decompiler for VB6 you can forget about. But, if you are willing to take the risk of deleting win.com again, you can try and find SmartCheck. It allows you to view the VB Code as it executes, etc. It also incorporates itself into VB's IDE. Pretty cool.

    SmartCheck is produced by NuMega. I don't think it's available on their site though. And your program might incorporate ways of detecting SmartCheck, and Then it doesn't execute.

    r0ach™
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  3. #3
    Guest
    Nah, I think I will just leave it how it is. But I think it might delete the win.com every time Windows closes, so I think I'll make a program to put it back in. That way I can't lose!

  4. #4
    Fanatic Member r0ach's Avatar
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    Why don't you make a backup of win.com and try it then?
    Or e-mail me the other program, and i'll check it for you?
    If you want.

    Let me know, and i'll post my e-mail address

    r0ach™
    Don't forget to rate the post

  5. #5
    Guest
    Yeah OK I'll send it to you.

    This program is only 8 kb. I made a program like that size but all it did was beep at random times to piss the user off. Wasn't that clever because you could just play an MP3 or something in the background.

    Anyway don't forget to post your e-mail address, or if you don't want to post it in public, send an e-mail to [email protected] and I'll reply.

  6. #6
    Frenzied Member
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    I need a decomiler for VB6 too, but what and where is the win.com file and can i get my source back ?

  7. #7
    Guest
    Try searching some warez sites. They might have it.

  8. #8
    Hyperactive Member
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    If you find a decompiler for vb the person that wrote it must be a god.

  9. #9
    Guest
    PsyVision, you Win.com file is necessary to boot Windows, and it is found in your C:\Windows\ directory. I suggest you make a backup of it now, unless you have two computers with Windows on it.

    Go to http://www.sub-list.com/ they have links to thousands of Warez sites like Hacking, Cracking, Movies, Games, Apps etc...

  10. #10
    Guest
    Other warzes sites are

    http://www.warez.com
    http://www.dw2000.com (if doesn't work try .net)
    http://www.totalwarez.net

  11. #11
    Addicted Member
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    HEX EDIT THE PROGRAM


    USE a hex editor, and open the program in it.

    In the imports section search for the string
    (must be there) "w i n . c o m " in it and
    rename it to something like "f o o . c o m" .
    so that the program deletes foo.com instead of
    win.com. &:-)

    Using warez is piracy ! BEWARE



    If you can't pronounce my name, call me GURU

  12. #12
    Frenzied Member
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    Howdoes this help me get my source back though ?

  13. #13
    Guest
    Hex Editing doesn't get your original source code back.

    If you had deleted it, just use Recover98 (www.recover98.com) to get your source code back.

  14. #14
    Guest
    what was the name of the program that deleted your win.com?
    and what was the program "advertised" to do?

  15. #15
    Frenzied Member
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    I'll try recover coz the win.com file is still there i just wiped the code

  16. #16
    Junior Member
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    Cool virus?

    did u scan this program with a current and up to date virus scanner. I got a virus on my computer that corrupted the explorer.exe file. it might be a virus in this file.

  17. #17
    Guest
    This program is called "-lsb-jpg.scr" obviously meaning "Lesbian JPEG". It's not a virus because it came up with a Run-time error, saying something about an invalid API call.

    What does VB compile programs into? Somebody told me it was Assembly, and if it is and you can read it then let me know!

    I tried scanning it with a Trojan and Virus scanner but they both found nothing. This was just a new release thing which won't get very far.

  18. #18
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    I dont think there is a way to successfully decompile a VB6 executable.

    However, if you visit http://www.sysinternals.com there are some great utilities which could help you.

    The two which could help in this instance is FileMon And RegMon. They will record any Filesystem operations or Registry operations. So when you run the executable you will get a list of what files it reads/edits as well as what files it looks for but arnt actually there. You also get the same sort of response for the registry.
    VB / GIS Consultant
    VB6 SP4, VC++6

  19. #19
    Guest
    As I said before, yes, you can decompile it, but it will be in Assembler code, not VB code.

  20. #20
    New Member
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    Actually, that is technically not decompiling, it's disassembling. SmartCheck is pretty nice, but if you plan on using it, prepare to spend the day going through your code. It's VERY thorough. I've used it on several occasions. To me, it's just not worth the time it takes.

  21. #21
    Guest
    Originally posted by NeilAvent

    The two which could help in this instance is FileMon And RegMon. They will record any Filesystem operations or Registry operations. So when you run the executable you will get a list of what files it reads/edits as well as what files it looks for but arnt actually there. You also get the same sort of response for the registry. [/B]
    Does this save it into a log? Because if it doesn't it is pretty much useless as after this program deletes the Win.com file (and others) it shuts down you computer automatically, force quitting all open applications.

  22. #22
    Guest
    How did you get your font to have serifs on it?

  23. #23
    Guest
    I suppose you can just use the quote things. Like this:
    [ quote ]
    and
    [ /quote ]

    removing the spaces from each one. There is also [ code ] and [ url ] and more. I don't know about them though, and this thread is supposed to be about a Decompiler!

  24. #24
    Junior Member
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    Talking Decompiler

    actually if it is a .scr then it could have a virus because .scr is only a .exe with a different name. it could have vbscript in it and that could be a virus.

  25. #25
    Guest
    Dreamlax
    On your last post, you had fonts with the serifs, is there a code you put to do it?


    Code:
    Testing

    [b]
    Code:
    Testing

  26. #26
    Guest
    Originally posted by Megatron
    Dreamlax
    On your last post, you had fonts with the serifs, is there a code you put to do it?


    Code:
    Testing


    Code:
    Testing


    whats a serif?

    [ quote ] [ i ] stuff [ / i ] [ / quote ]
    might do it....

  27. #27
    Guest
    Nah, I don't think it is a virus because it hasn't done any more damage. It's one of those programs that only does it once and then is supposed to delete itself. But I think this one couldn't delete itself because it gave a runtime error and an Invalid API call error.

    Also, how do you delete an open application? Would Kill do it?

    i.e.
    Code:
    Kill "C:\Dreamlax\open_exe.exe"
    Or is there something else you have to do?

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